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Re: Re: DDR FSB

Originally posted by Hemingray


If what they say is indeed true then Apple really needs to make that more clear. Because to me, if the system bus was TRULY DDR, why would Apple simply say "166MHz system bus" as opposed to "333MHz system bus"? Of all people, Apple would be the ones to try and make it sound the most impressive.

This is because people are willing to overlook the obvious if they don't want something to be so. Even the PC's which have 533 buses actually only have a 133 system bus. The system bus has always to other areas of the computer, not between the memory and the processor. What has brought confusion is that Apple, to curcumnavigate the slow system bus, is routing as much as possible directly to the memory through the controller.
 
Originally posted by mueng
Isn't RDRAM really expensive compared to SDRAM and DDR?

Many high-end PC's use RDRAM and low-end one's and notebooks use less expensive DDR. I don't think it would hurt to use RDRAM in high-end PowerPC's, do you?
 
Re: this makes me laugh

Originally posted by puffmarvin


you know, i hate when people correct others in the forums but this is a perfect example:

pompus should be pompous

and

your should be you're since YOU'RE saying you are.

before lashing out against someones intelligence... check your spelling :p


Yes, I agree.

By the way, something someone has said or written should be contained in quotes......











;)
 
Originally posted by AmbitiousLemon


numerous link have been posted already by myself and many others. conspiracy theory? what you talking about? i think you are the guy who needs to shut up. as usual the only reason you seen to think that macs are crappy is because you keep jabbering and you havent read anything in this thread. please click the lil back button and actually read before you post again. you are just embarrassing yourself by posting stuff like this.

I think you're embarassing yourself by not responding to any of the technical points that ddltm or myself have brought up. We looked at your links and they were cooked up websites from other "believers" that showed how good AltiVec is at a FEW operations.

You have given only anectodal evidence. Again, I invite you, like others have, to give us a good cross-platform, independent, industry standard benchmark (please, give us something other than SPEC if you can find it).

I don't think Macs are crappy. I think Mac OS X is the most elegant operating system I've ever seen. I've owned Macs since my first Mac Plus (including a Lisa, a IIcx, an Quadra 605, a iMac DV+, this iBook Dual USB, and a PowerMac G4 Dual 1GHz). But I also have owned other machines (NeXT machines and SPARC machines) and I use a Dell at work. I can tell you, the Mac platform is the most behind in technology I've ever seen it. Their OS is great, but please, Apple needs to get with it and deliver the hardware the OS deserves.
 
I'm just confused about the damn DDR memory, I dont want to go buying the wrong kind, but PC 2700 is PC 2700, right? (IE: If I buy something thats rated as PC 2700 memory, then it should work)
 
Originally posted by Shrek


Many high-end PC's use RDRAM and low-end one's and notebooks use less expensive DDR. I don't think it would hurt to use RDRAM in high-end PowerPC's, do you?

OH dear, here comes the whole DDR vs RDRAM thing...

From what I can see RDRAM is a struggling "standard" that has tapped most of it's potential already, and DDR 400 supposedly beats the best RDRAM. Whats more, RDRAM is expensive and proprietary, and requires obnoxious fees to RamBus.

I'm not even going to start on RamBus the company and it's sleazy tactics.
 
Originally posted by kenohki


I think you're embarassing yourself by not responding to any of the technical points that ddltm or myself have brought up. We looked at your links and they were cooked up websites from other "believers" that showed how good AltiVec is at a FEW operations.

You have given only anectodal evidence. Again, I invite you, like others have, to give us a good cross-platform, independent, industry standard benchmark (please, give us something other than SPEC if you can find it).

I don't think Macs are crappy. I think Mac OS X is the most elegant operating system I've ever seen. I've owned Macs since my first Mac Plus (including a Lisa, a IIcx, an Quadra 605, a iMac DV+, this iBook Dual USB, and a PowerMac G4 Dual 1GHz). But I also have owned other machines (NeXT machines and SPARC machines) and I use a Dell at work. I can tell you, the Mac platform is the most behind in technology I've ever seen it. Their OS is great, but please, Apple needs to get with it and deliver the hardware the OS deserves.

you are right NASA just has cooked up benchmarks. really you are not proving anything by holding onto one benchmark that doesnt translate well into real world performance. if every other benchmark is 'cooked' then im sorry. you havent provided any 'technical' debate. in fact you dismissed all discussion of the pipeline differences as 'marketing speak'. so how can i argue with someone who is acting so illogically? you ignore all benchmarks. you use one benchmark that is admittedly poor at measureing the speed of a computer system. and you ignore all discussion of chip design. if you are so blindly committed to x86 then quit posting on a mac website.
 
So, I'm getting a new comp, whats the Big difference bewteen the Radeon 9000 and the Geforce Ti, is it really worth that extra money ? I'm a bit tight on cash now, but I'd like to play games decently !
 
Originally posted by cyberfunk
So, I'm getting a new comp, whats the Big difference bewteen the Radeon 9000 and the Geforce Ti, is it really worth that extra money ? I'm a bit tight on cash now, but I'd like to play games decently !

i would suggest getting the lowest end card 4mx. it will probably be all you need and it will save you some dough. when the ati 9700 comes out and if you still want a new card. spring for that. it will likley be cheaper than the Ti and shoudl outperform it. some benchmarks have been posted in another thread here. check the main page.
 
Man, I just want a straight answer on the bus. I'd think it was DDR, but I'd like some hard proof.

Although, I think its a great machine anyway, so I'm not to concerned.
 
Originally posted by iGAV


You can't go on benchmarks that are like 2 years old, running OS9 :rolleyes: :rolleyes: :rolleyes:

If you really want to believe that in terms of true performance, in real world demanding tasks that a single is only 3 seconds slower than a dual........ :rolleyes: :rolleyes: :rolleyes:

P.S wasn't OS9 not configured to fully make use of Dual processors? unlike OSX?
the difference would be much more pronounced now......

from what i understand apps had to be specifically programmed for dual proc in os 9 (major selling point of the original duals was for photoshop use right?) but os x has support for multi-scaling proc built in. i dont know how this works (splits up load between duals, when one proc is saturated workload carries over to other proc) and would assume that apps can still customize the use of the duals to their specific needs....anyone who can give some weight to this?
 
Originally posted by kenohki
The only benchmarks people have mentioned here (besides silly Photoshop bakeoffs) are Xinet server benchmarks. This proves what? That the G4 can keep up with 1GHz PIIIs. Okay, great, and while the P4 is at 2.53 GHz on a 533MHz FSB (and 3GHz by years end or sooner), we'll sit around and pat ourselves on the back about how we've finally caught up with LAST YEAR's Wintel machines. Granted, the P4 does less per clock than the PIII or G4 but you can't reason away 3GHz processors to the "megahertz myth". [/B]

I'm not going to defend Apple, or more specifically Motorola on these new releases. They are certainly an improvement, but they are more like a stop gap between the Old towers and modern PC technology. The latest processor to chipset bus is NOT DDR! Only the memory to chipset is DDR.

but... don't dismiss the Xinet benchmarks or the photoshop benchmarks. The xServe is a SERVER! The benchmarks done by Xinet are the types of benchmarks that server vendors routinely tout to sell boxes. They are perfectly valid, they are important indicators of design-house server needs, and they are compiled by an independent source. By the way, check the Xinet benchmarks again... you don't seem to appreciate how well Apple fared, especially in price to performace (lower price, more performance than Sun OR Dell).

As for photoshop, it is an important benchmark for a variety of reasons.
1) it has a common, cross platform, code base
2) it is optimised for a variety of platforms so you can't claim it is tweaked for one platform and not another
3) it is mathmatically intense, but it also stresses the memory subsystems
4) it can stress interger, FP, or SIMD performance... or all of the above depending on the batch of tests.
5) and for Apple, it is the 'holy grail' of one of their core markets. Lost time in Photoshop is lost productivity and lost money.

Here is the latest blurb from the G4 site...
The twin-engined 1.25GHz G4 runs professional applications like Adobe Photoshop up to 90 percent faster than a 2.53GHz Pentium 4-based PC
Not independent, but I bet Apple can back up that statement.

Right now, a Dual G4 offers up to 2.5GHz of clocks (minus the overhead associated with SMP). This seems to fare very well to the 'architecturally challanged' P4. I'm sure even Motorola could ratchet up the clock a lot more if they put 23 stages in their pipeline. Apple's problem is price... I'd say the performance of the low end dual is fairly close to a similarly priced (not garage built) P4s in Apple's core market applications, but if you look at what a high end Dual G4 costs you... then you have to start comparing to dual Athlons and Dual Xeons where Apple isn't going to keep up.

The 3GHz you mention has not been released yet. I bet they could get real close now but Intel is screwing the consumer and waiting for AMD to get closer before they release new processors. As for the Mac, there is still a 7470 processor on the road map (likely for this year) that WILL clock higher, if only due to a smaller process, and which will perform much better overall due to Rapid I/O DDR support and a 512K L2 Cache. If you want to talk 3GHz P4s, you should compare them to Dual 1.5 GHz 7470 processors. It is only fair to compare vapor to vapor isn't it?

... but of course, in the end you should look at TCO when you look at price or even price/performance shouldn't you? Could you show us one, just one, report that states Windows PCs have a lower TCO, or a higher level of productivity than Apple computers? If you do, I guarantee the rest of the posters here could find ten independent reports that state otherwise.
Even INTEL released a report a few years back that their macs cost less to operate than their PCs. I'm sure they fired the guy that leaked that one.

Just my 2cents.

(where's my freaking 1.6+ GHz G4s!!!) ... ffakr
 
Which is better for pro audio?

Which would be better for pro audio use (Digital performer, Logic, etc.) the old dual gig with 2MB L3 or the new dual gig with 1MB L3 and DDR RAM/167 bus?

Anyone have an opinion?
 
Originally posted by cyberfunk
So, I'm getting a new comp, whats the Big difference bewteen the Radeon 9000 and the Geforce Ti, is it really worth that extra money ? I'm a bit tight on cash now, but I'd like to play games decently !

OK, here's the deal. PC2700 is PC2700, the industry standard 333Mhz DDR DIMM (184 pins I believe). You can upgrade with any 512Mb PC2700 DIMM (you may even be able to use the slower PC2100 DIMMs because 90% of them overclock to 333Mhz easily, but I haven't tried it on a mac).
The Radeon 9000 is about 1/2 to 2/3 the speed of Geforce 4 Ti, 2/3 the speed of a Radeon 8500 (yes, you heard me right, the Radeon 8500 IS faster. Go check pc benchmark sites if you don't believe me), and 1/2 the speed of a Radeon 9700. Personally, I'd stay with the 9000 if it comes preconfigured and then I'd wait for the NV30.
Finally, just to rub it all in, the new macs AREN'T full DDR. 1.3Gb/sec is the bottleneck so not much of that DDR RAM stuff matters :p
 
Originally posted by AmbitiousLemon


you are right NASA just has cooked up benchmarks. really you are not proving anything by holding onto one benchmark that doesnt translate well into real world performance. if every other benchmark is 'cooked' then im sorry. you havent provided any 'technical' debate. in fact you dismissed all discussion of the pipeline differences as 'marketing speak'. so how can i argue with someone who is acting so illogically? you ignore all benchmarks. you use one benchmark that is admittedly poor at measureing the speed of a computer system. and you ignore all discussion of chip design. if you are so blindly committed to x86 then quit posting on a mac website.

Did you even read that NASA blurb? :rolleyes: They said

Without the parallel vector processing capabilities of AltiVec, the G4 places near the end of the pack in performance tests using standard FORTRAN scientific codes. In limited cases where AltiVec acceleration was available and tested under FORTRAN, the G4 showed a clear advantage with 4-7X greater performance and a 5-8X greater cost effectiveness than all other workstation systems evaluated

Yes, VMX/AltiVec helps a lot. SIMD is great but you can't use SIMD on all tasks. AltiVec can only be used on a small percentage of calculations and it would definitely be a boon to someone doing FORTRAN (which is a VERY VERY OBSCURE usage) Integer performance and floating point performance still need to be there and this NASA report says the G4 comes up the rear. So where's your benchmarks? Eh?

BTW, I don't even own x86 nor would I buy one. I own PowerPC and SPARC machines, thank you very much. :D
 
Re: RAM specs?

Originally posted by trodel_post
Does anyone know any detailed RAM specs for the new machines? When buying RAM, aren't you technically supposed to match things like cas latency across all DIMMs?

I called Apple to ask about it, and even after talking to a "product specialist" the drooly on the phone couldn't tell me anything.

I notice that Crucial's PC2700 DIMMs all seem to be CL=2.5, but I've seeb some mfrs offering CL=2.0. Anyone know what's in these bad boys?

I ordered a dual 1GHz this morning - can't wait to get my hands on it!

If the new powermac was designed well, and I don't doubt that, the system will automatically default to the slowest cas level. Shouldn't be much of a problem since all of the PC133 ram that you guys have been using also varies from cas 2-3.
 
Originally posted by LethalWolfe


Okay, so if a DP rig is running, lets say, UT, it won't be much faster than a SP (single proc). But if I'm running a bunch of apps the DP will be faster because the "thread load" is handle by 2 procs, not just one.

Is that the jist of it? And I own a DP 1gig so I'm not having any proc envy thank you very much. ;)


Lethal

Any application that utilizes more than one thread benefits from a multiprocessor system transparently. No optimization is necessary.
 
Originally posted by edvniow


I don't think they own them, they just have a VERY close partnership. Ever notice any RDRAM on any AMD MB? I don't think so...

Actually RAMBUS tricked Intel into a contract that pretty much forced them to stick with RDRAM for their P4 mobos until late 2001 I believe. AMD hasn't touched Rambus because no one in their right mind would! RDRAM's price/performance ratio is so bad that people in the pc world call it rambust. Well, it's that, and the fact that rambus is trying to make money off of memory makers by suing them and trying to make them pay liscensing fees for Rambus themselves stole.
 
up to 90% faster

That means that on the most DP, G4 optimized opoeration, the absoulte and totally best one, the 1.25 will run 90% faster than a single P4 2.53 that costs half the price, or in reality based on what will be shipping when the 1.25 is, maybe 60% faster at best than a 2.8Ghz P4.

Undoubtedly there are also some filters that the P4 will run at far more than 90% faster than the DP 1.25

What really counts and what Apple doesn't comment on is how much faster it is consistently using a variety of common functions, not some single function that the G4 happens to have the advantage at.

It's like the stupid repeated comment that G4s are faster at RC5 so they are faster overall. That's real nice if all you want to do is run RC5 all day, in which case you are probably in a straghtjacket in some padded room. Yes, the new machine will trounce PCs if all you do is run one specfic PS filter all day long for months on end.

But here is the worls of the sane, the new 1.25 leaves us even further behind PCs than we were when the DP 1Ghz was introduced.
 
Originally posted by kenohki


Did you even read that NASA blurb? :rolleyes: They said



Yes, VMX/AltiVec helps a lot. SIMD is great but you can't use SIMD on all tasks. AltiVec can only be used on a small percentage of calculations and it would definitely be a boon to someone doing FORTRAN (which is a VERY VERY OBSCURE usage) Integer performance and floating point performance still need to be there and this NASA report says the G4 comes up the rear. So where's your benchmarks? Eh?

BTW, I don't even own x86 nor would I buy one. I own PowerPC and SPARC machines, thank you very much. :D

i think the problem i have with all of your arguments is that you ignore absolutely everything that shows the mac is just as good if not better than the pc. so you own a mac. sounds like you have a serious inferiority complex then. im sorry for you then. the very plain fact of the matter is that apple has built the powermac to perfrom well for what you do, not to perform well in benchmarks. please take a look at those real world benchmarks i and others have posted. yes the mac loses (find it odd that peopel claim they are cooked when the mac loses, we could easily make a real world test that showed the mac was faster but these have been designed to try to be fair), but as i have said many times it is close. the new macs should close that gap. i for one am very pleased.

and as for the gentleman who claimed this is a stop gap. i would agree to some extent. the joke of an update that was the last update was a stop gap. this update brings the macs up to date and even innovates a bit. but its a stop gap in that i think we all suspect bigger tyhings are to come in the next 18 months or so. this is sort fo a bring us up to date, lets get real innovation out soon.

robguz- the powermac would only be 2x as expensive if you build a stripped down p4. we have already discussed pricing and those who ahve actually spec'ed out a complete machine have seen that the price difference is non-existant. also you discuss realworld tests not benchmarks. funny thing is, is that this is where the mac actually excels. take a look at the links and quotes posted in this thread. in real world tests the powermacs does quite well.
 
Originally posted by topicolo


Actually RAMBUS tricked Intel into a contract that pretty much forced them to stick with RDRAM for their P4 mobos until late 2001 I believe. AMD hasn't touched Rambus because no one in their right mind would! RDRAM's price/performance ratio is so bad that people in the pc world call it rambust. Well, it's that, and the fact that rambus is trying to make money off of memory makers by suing them and trying to make them pay liscensing fees for Rambus themselves stole.

Thanx, I knew something was up between those two, but I was never sure what. RAMBUS sucks anywayz. I've got it and I'm not impressed.
 
First off ffakr, thank you very much for posting a reply that had some thought and reasoning behind it. :D

Originally posted by ffakr


As for photoshop, it is an important benchmark for a variety of reasons.
1) it has a common, cross platform, code base
2) it is optimised for a variety of platforms so you can't claim it is tweaked for one platform and not another
3) it is mathmatically intense, but it also stresses the memory subsystems
4) it can stress interger, FP, or SIMD performance... or all of the above depending on the batch of tests.
5) and for Apple, it is the 'holy grail' of one of their core markets. Lost time in Photoshop is lost productivity and lost money.

Here is the latest blurb from the G4 site...
The twin-engined 1.25GHz G4 runs professional applications like Adobe Photoshop up to 90 percent faster than a 2.53GHz Pentium 4-based PC
Not independent, but I bet Apple can back up that statement.

Yes, and I understand this, but it's too easy for people to pick which operations are done, skewing the results. There is no standard PhotoshopMARK and so we find companies like Apple finding the optimal set of operations and filters to do so their machines look good. That's why I don't like that benchmark. Standardize the ops and I'll take it with more than a grain of salt.


The 3GHz you mention has not been released yet. I bet they could get real close now but Intel is screwing the consumer and waiting for AMD to get closer before they release new processors. As for the Mac, there is still a 7470 processor on the road map (likely for this year) that WILL clock higher, if only due to a smaller process, and which will perform much better overall due to Rapid I/O DDR support and a 512K L2 Cache. If you want to talk 3GHz P4s, you should compare them to Dual 1.5 GHz 7470 processors. It is only fair to compare vapor to vapor isn't it?

Well, I'd like to be comparing the 3GHz P4 to a POWER4 variant in 90 nanometer process which would thoroughly trounce the P4 in performance. Hopefully we'll see that coming along soon now. ;)


... but of course, in the end you should look at TCO when you look at price or even price/performance shouldn't you? Could you show us one, just one, report that states Windows PCs have a lower TCO, or a higher level of productivity than Apple computers? If you do, I guarantee the rest of the posters here could find ten independent reports that state otherwise.
Even INTEL released a report a few years back that their macs cost less to operate than their PCs. I'm sure they fired the guy that leaked that one.

Now now, let's not even get into TCO. That's a whole 'nother thread and way more subjective than performance. I don't like Wintel machines and I would hate to support them. If you wanna get real nitpicky though try a thin client. Those SunRay 1 appliances have unreal TCO. Granted, they have no apps either. ;) But great TCO.

Overall, I just think people should be realistic about where at and although it's better than we were yesterday, we're not going to trounce the high end x86 machines in performance (yet).
 
Originally posted by AmbitiousLemon

i think the problem i have with all of your arguments is that you ignore absolutely everything that shows the mac is just as good if not better than the pc. so you own a mac. sounds like you have a serious inferiority complex then. im sorry for you then.

I think the problem you have with my arguments is that you can't refute them like I just did with yours.

Once again, no facts or knowledge to back you up.
 
Originally posted by kenohki
Overall, I just think people should be realistic about where at and although it's better than we were yesterday, we're not going to trounce the high end x86 machines in performance (yet).

no one is claiming these machines will trounce the x86 machines. what we are trying to prove to you is that the current macs do not lag behind. what you have been trying to suggest is that the intel machines 'trounce' the powermacs. and this is simply not the case. i agree apple's photoshop filters are cooked. but i have seen too many other benchmarks of which photoshop is a part but not the whoel suite of tests, that show that the powermac is only 20% behind the fastest x86 machines. this leads me to believe the new machines will be very comparable to any x86 machine you can build. you claim about trying to be realistic and then say silly things like real world tests mean nothing. lets be realistic here. real world tests are the only thing that matters.
 
Originally posted by kenohki


I think the problem you have with my arguments is that you can't refute them like I just did with yours.

Once again, no facts or knowledge to back you up.

im sorry but no you are just being stupid. i cant refute what you said because you didnt say anything. you are a fool. no fact? no knowledge? sound like you are describing your own posts here buddy. all that you have said to refute what i have proved is say. i dont care. you refuse to look at benchmarks. you refuse to look at real world performance. you refuse to look at architecture. you are like a child covering his ears and screaming lalallala. you ignore every fact presented you for some unimaginable reason. you are a fool. and you are not worth my time.
 
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