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Evangelion said:
They sell it with with 2x512MB because the system uses dual-channel RAM. You COULD use it with just one stick of RAM, but that would be un-optimal. With two sticks you get 128bit memory-bus, as opposed to 64bits with single stick.

The cpu-northbridge connection is only 64-bits wide so you won't see any speed increase from going dual channel. It only really helps onboard graphics and PCIe turbo cache cards. The older iMacs could be bought with single sticks.
 
Sped said:
I couldn' agree more. Every time a new iMac gets released, the performance zealots hijack the thread to discuss the latest version of the headless mac. I thought the mini would quash the hijackings, but apparently I was mistaken. The bottom line is folks want Mac Pro's at cheaper prices which leads me to believe they aren't pros at all because the Mac Pro is a very competitive machine regarding its marketing (performance too).
I beg to differ, while I love my 17" iMac for its intended purpose it is very clear now that Macs are Intel based that there is a real price/performance gap for Conroe based headless Macs. That gap is widening now that the mini remains Yonah based and the iMac has gotten Merom while the Mac Pro has Woodcrest.

I don't want or need a quad processor Mac Pro, or a Mini crippled by integrated graphics and a 2.5" drive. Does that make me a performance zealot? Maybe I just need to buy a $1000 Conroe based Dell to replace my aging P4 instead of a new Mac. 🙁

B
 
Macrumors newbie

Hi - first post.

I am looking to replace our 5-year-old old Dell desktop, and am seriously considering an iMac (mini-tower would be nice, if they come out with one soon).

I was looking at the 20" iMac before, and now it looks like a really good deal. Am trying to assess whether the 24" (although no doubt beautiful) is worth the extra cash. Beyond the display, differences seem t be the better graphics card and the FW800.

Sorry if this has been covered elsewhere, but is the Nvidia 7300 on the 24" likely to be noticeably better than the x1600 on the 20"? In either case, is the available upgrade (i.e., to 256 MB on the x1600 on the 20" or to the Nv 7600 on the 24") worth it?

Also, just curious: Why does it cost $175 to upgrade from 1GB to 2GB of RAM, but another $575 to go to 3GB?
 
TBi said:
The cpu-northbridge connection is only 64-bits wide so you won't see any speed increase from going dual channel. It only really helps onboard graphics and PCIe turbo cache cards. The older iMacs could be bought with single sticks.

It doesn't even have to be turbocache-cards, all vid-cards can store textures in system-RAM. Turbocache just means that they treat all RAM (system and video) as one pool of RAM. And that means that they could keep framebuffer in system-RAM as well. Without turbocache they couldn't put the framebuffer there. And it might be that the GeForce does support Turbocache, the just might not advertize it as much as on their low-end models (which basically need the feature).
 
AidenShaw said:
But you couldn't do it without an ad hominem crack about the people who argued against you... 🙄


Actually, even this statement is pretty obviously false.
So, Mr. Lawyer, I don't even think that you can support your claim that the Mac Pro is the most powerful desktop.

I rest my case. 😀

Even Mr. Shaw couldn't resist joining the fray, this is amazing...

1 - your machine up there doesn't run Windows and OS X...therefore, it cannot be the most powerful;

2 - 64-bit support in Vista is gonna be lousy when compared to Leopard, including a crappy emulation mode for 32-bit apps...and the fake 64-bit in current XP systems shouldn't even be taken into consideration, since its adoption has been close to zero, to say the least;

3 - we have been exchanging picky arguments for a long time, Mr. Shaw...so you should know better that I love to state my support of the Mac platform, especially when the forum we call MacRumors is full of PC supporters...and I love to get rabid reactions from Thurrott's fans here, it's real fun... 🙄

By the way, could you show me again the price difference between a MP and a Dull? It was at least $500 the last time I saw, for identical systems...and please, don't mention academic SPECmark discrepancies...you know there are different system configuration and methodologies...

BEST OS + BEST DESIGN + BEST SUPPORT OF THE MARKET + BEST CHIPS AND MOBOS = MOST POWERFUL MACHINE...get it now? 🙄
 
Manic Mouse said:
I'm totally creating a "min-tower party" thread if it happens. I couldn't think of a better reason to celebrate!

Since you havn't celebrated the loss of your virginity...😀 only jking
 
Eidorian said:
*sigh*

Conroe COULD work in the iMac. We've beaten this theory to death after digging up all the specs on the PowerPC 970/970FX.​

Please tell me what we have to wait for after Santa Rosa. I don't see a big leap in mobile processing for some time in Intel's roadmap.

The front row iMacs were thinner and used the ow power version of the 970FX that was introduced with the 970MP. Even then, they were pretty loud. Yonah and Merom iMacs are almost dead silent.
 
BenRoethig said:
The front row iMacs were thinner and used the ow power version of the 970FX that was introduced with the 970MP. Even then, they were pretty loud. Yonah and Merom iMacs are almost dead silent.
I have my doubts on Conroe in the 17" model. But the 20" and 24" ones have more then enough internal volume for it.

iMac Internals
 
Eidorian said:
I have my doubts on Conroe in the 17" model. But the 20" and 24" ones have more then enough internal volume for it.

iMac Internals
Volume's the least of the concerns. Can you get the heat out from the CPU? 99% of this is thermal design. (Given Apple's poor recent track record of applying thermal paste, their manufacturers don't understand this...)

B
 
Eidorian said:
*sigh*

Conroe COULD work in the iMac. We've beaten this theory to death after digging up all the specs on the PowerPC 970/970FX.​

Please tell me what we have to wait for after Santa Rosa. I don't see a big leap in mobile processing for some time in Intel's roadmap.

After Santa Rosa Merom, we have Penryn.
 
BRLawyer said:
1 - your machine up there doesn't run Windows and OS X...therefore, it cannot be the most powerful;
The ProMac doesn't run Solaris or Linux.... Your point is?

BRLawyer said:
2 - 64-bit support in Vista is gonna be lousy when compared to Leopard, including a crappy emulation mode for 32-bit apps...and the fake 64-bit in current XP systems.
Odd, but my current XP 64-bit systems don't seem fake, and the "crappy 32-bit emulation mode" is just as fast as real 32-bit mode. There's no ISA emulation, just some system API thunking. Not an issue if you understand the technologies...

It's funny how the Apple fans can claim that "Leopard will be much better", based on two Powerpoint slides from WWDC.

I'm also amused that your main response to the fact that the Dell is faster than the Mac Pro is to ask about the price of the Dell. Can't admit that you're wrong a second time? 😱
 
javierbds said:
Sorry, I hate it when someone starts with "Let me give you a lesson ..." 😡

Guess you forgot your lesson about mainboards (logic boards) and how overall system performance is not just in the chip ... Take a trip around anandtech 😉

A 1.83 Conroe System is almost on par with a 2.33 Merom System (and probably cheaper), so Intel do INDEED know their segments ... The Merom System will be really 64-bit when they release Santa Rosa (ask AidenShaw), probably Santa Rosa iMacs by Leopard release ... (I have to cheat myself into not buying a new Mac until Leopard ...).

iMacs are some kind of hybrid 'cause they use laptop chips and boards and desktop GPUs and drives ... Whether or not they can put Conroes on an iMac or if Apple has the ??? to release a Mac mini Pro ('Barebones' Conroe) is another story ... 🙄


EDIT
bare 17'' should make a good volume machine for offices
17'' for people on a budget
20'' very nice, and the most bang for your buck probably
The 24'' is a sweet prosumer machine (so I guess no Mac Mini Pro)
/EDIT


This is all nonsense, a 1.83 Conroe is NOT on par with a 2.33 Merom, it is way slower. A 2.33 Merom is almost as fast as a 2.33 Conroe.
 
DVK916 said:
After Santa Rosa Merom, we have Penryn.
I only see a die shrink from Penryn though. We get more cache but no more cores.

balamw said:
Volume's the least of the concerns. Can you get the heat out from the CPU? 99% of this is thermal design. (Given Apple's poor recent track record of applying thermal paste, their manufacturers don't understand this...)

B
The increased internal volumes gives us more room to work with when it comes to thermal envelopes. I've found the 20" models MUCH more quieter then the 17" ones. The Rev. A/B iMac design makes this obvious when going from 17" to 20".
 
Not likely, I think, but...

joshwest said:
Agree'd but I do belive he's going to say but there is One more thing, introduce the release of the new 24" and say but there is still another size we wanted to focus on because we just turned 30.... 30th aniversary 30" iMac in black or white...

Seriously, I think I'll drown in my own drool if that happens! Imagine the specs such a beast could have... The price would be ugly, obviously, but... wow!!! Just wow!!! I don't see it happening though. But... they do need *something* for that September 12th event, right? I mean, other than the movie downloads, since the whole world already knows about that.
 
Hd?

jesteraver said:
One thing is the 24" display on the iMac, normal or HD?

The display on the 24" iMac is not made by Harley Davidson.

Nor can it be purchased at Home Depot.

It does not have Hip Dysplasia.

I doubt it has a Higher Diploma.

For the love of pete, I sincerely hope nobody ever desires to display Hillary Duff on that screen!

As an inanimate object, it has no Hit Dice, per se. (Although if animated, based on its size, it would likely have 1-2.)


Or did you mean "is it High Definition"? 😛

Yes, it is. But then again, so is the MacBook. Anything 1280x720 or higher can be called 'high definition'.

I assume what you REALLY mean is "Can the 24" iMac natively display 1080 HD content at full resolution?"

Yes. The native resolution of the 24" panel is 1920x1200. That means it can display 1080i/1080p content with no scaling. (Although I have yet to find 1440x900 or 1680x1050 to be 'lacking' when displaying 1080 content.
 
DrFrankTM said:
Seriously, I think I'll drown in my own drool if that happens! Imagine the specs such a beast could have... The price would be ugly, obviously, but... wow!!! Just wow!!! I don't see it happening though. But... they do need *something* for that September 12th event, right? I mean, other than the movie downloads, since the whole world already knows about that.


esp if it has a xeon in their
 
Eidorian said:
I only see a die shrink from Penryn though. We get more cache but no more cores.

According to Intel's roadmaps, quad-core or greater is not on the mobile roadmap. At all.

Desktop processors will get quad-core (likely the 'Extreme' part,) either at the end of this year, or by the middle of next year. Quad core is the most the desktop roadmap currently shows.

Server/workstation processors will get quad-core this year, and the roadmap has up to 8-core chips in late '08 or early '09.

Intel has talked about massively-multi-core chips, but the roadmap doesn't show any currently even in the planning stages of production.

Of course, as we saw with the abandonment of NetBurst, roadmaps do change. By '09, we could see 8-core everywhere.
 
ehurtley said:
According to Intel's roadmaps, quad-core or greater is not on the mobile roadmap. At all.

Desktop processors will get quad-core (likely the 'Extreme' part,) either at the end of this year, or by the middle of next year. Quad core is the most the desktop roadmap currently shows.

Server/workstation processors will get quad-core this year, and the roadmap has up to 8-core chips in late '08 or early '09.

Intel has talked about massively-multi-core chips, but the roadmap doesn't show any currently even in the planning stages of production.

Of course, as we saw with the abandonment of NetBurst, roadmaps do change. By '09, we could see 8-core everywhere.
Yeah, that's what I though about the mobile roadmap. Here's a redesigned iMac next year? Or at least a desktop CPU in the iMac.
 
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