PC3200... Should it be feared?

[Porshuh944turbo]

Originally posted by benixau
And it is like i said - RAID0 on RAM. using more than one physical unit to create one logical unit. People dont really get Dual Channel yet, people mostly get RAID0 / stripping.

What do you mean for RAID 0 on RAM? 😕 I've never heard of RAID on RAM.. I know what RAID 0 is, but never heard that talked about with RAM... plz enlighten me

🙂

 

[MacBandit]

Originally posted by Porshuh944turbo
What do you mean for RAID 0 on RAM? 😕 I've never heard of RAID on RAM.. I know what RAID 0 is, but never heard that talked about with RAM... plz enlighten me

🙂

He's comparing Dual Channel Ram to a raid hard drive setup. It's the same idea. You have two storage devices (i.e. two ram cards or two hard drives) that are read as one single storage unit but each device even thought he system sees it as one has it's own hardware connection so they have in theory twice the bandwidth.

 

[Porshuh944turbo]

I thought we were talking about twin channel RAM as used in the new G5 (like many recent PC mobo's). The reason you have to use mirrored sticks is becuase the system sees them as one. and has a 128bit path to each simulationeously.

So he's comparing this to a Striped RAID? I can see the comparison, just never heard of it like that..

 

[MacBandit]

Originally posted by Porshuh944turbo
I thought we were talking about twin channel RAM as used in the new G5 (like many recent PC mobo's). The reason you have to use mirrored sticks is becuase the system sees them as one. and has a 128bit path to each simulationeously.

So he's comparing this to a Striped RAID? I can see the comparison, just never heard of it like that..

Twin channel - Dual channel. Same difference. Yeah he's trying to put the idea in another context for people who don't understand the concept.

 

[Sun Baked]

Remember to check your box for confirmation

And the Power Mac G5 RAM requirement

DIMM Specifications

The RAM expansion slots accept 184-pin DDR SDRAM DIMMs that are 2.5 volt, unbuffered, 8-byte, nonparity, and DDR400-compliant (PC3200) or DR333-compliant (PC2700).

Important

DDR266 (PC2100) or slower DIMMs do not work in the Power Mac G5 computer.

Important

DIMMs with any of the following features are not supported in the Power Mac G5 computer: registers or buffers, PLLs, ECC, parity, or EDO RAM.

----

Further NOTEs

Must be installed in Pairs (Both machines)

&

For all microprocessor speeds and for both DDR400 (PC3200) and DDR333 (PC2700) SDRAM DIMMs, the Power Mac G5 supports CAS latencies of 2, 2.5, 3, 4, and 5.

 

[XnavxeMiyyep]

To those who said 8 GB is more than anyone would ever need:

Sure, you or I may never use 8 GB of RAM(well maybe in about 5 years we might), but it would be really useful for rendering video, which is a very long process.

 

[MacBandit]

Originally posted by XnavxeMiyyep
To those who said 8 GB is more than anyone would ever need:

Sure, you or I may never use 8 GB of RAM(well maybe in about 5 years we might), but it would be really useful for rendering video, which is a very long process.

Absolutely, I made this point previously. For example just take any big animation production company Pixar, Dream Works, Sony. Those people could easily use 8gigs now and probably wouldn't shrug off any amount of RAM they could get their hands on. Remember these machines are PRO machines so in affect if you're saying you'll never need 8gigs you probably aren't a PRO.

 

[groovebuster]

Originally posted by MacBandit
Those people could easily use 8gigs now and probably wouldn't shrug off any amount of RAM they could get their hands on.

Don't want to sound ignorant, but what is the benefit of having 8GB of RAM for a render job which is done frame by frame anyway, where a fast processor is much more important than huge amounts of RAM? To render one frame is definately still taking longer than the time that is needed to write it on the HD, so what's the deal? Or am I missing something?

groovebuster

 

[MacBandit]

Originally posted by groovebuster
Don't want to sound ignorant, but what is the benefit of having 8GB of RAM for a render job which is done frame by frame anyway, where a fast processor is much more important than huge amounts of RAM? To render one frame is definately still taking longer than the time that is needed to write it on the HD, so what's the deal? Or am I missing something?

groovebuster

I'm not thinking of rendering. I'm thinking of development. Being able to have say 10 minutes of frames in memory so that you can edit and flip through them on the fly etc.. I'm not a 3d artist but I have been told that they are the people that need the RAM.

 

[Porshuh944turbo]

MacBandit,

you're right about the video.... but you know as well as I do that us "users" who are definately not PRO as these machines are DESIGNED for will know way in HELL buy anything BUT these since they are the ONLY way we'll get to use a G5!!! and since we are not PRO, we will be perfectly happy with 2GB of this super fast 200 Mhz DDR RAM!!! 🙂

Which is why I think that if Apple doesn't update the rest of the product line FAST, they won't sell a damn thing! (other than G5's of course)

powerbook... $3299 for what??? a measly 1ghz G4?????

come on!

no offense to recent powerbook owners

 

[hvfsl]

You can't put normal PC RAM in the new G5 Macs, this is because at WWDC Apple said it was 128bit RAM, this is the stuff that is normally used on graphics cards. This is also why it is more expensive than PC DDR400/333 RAM.

 

[MacBandit]

Originally posted by Porshuh944turbo
MacBandit,

you're right about the video.... but you know as well as I do that us "users" who are definately not PRO as these machines are DESIGNED for will know way in HELL buy anything BUT these since they are the ONLY way we'll get to use a G5!!! and since we are not PRO, we will be perfectly happy with 2GB of this super fast 200 Mhz DDR RAM!!! 🙂

Which is why I think that if Apple doesn't update the rest of the product line FAST, they won't sell a damn thing! (other than G5's of course)

powerbook... $3299 for what??? a measly 1ghz G4?????

come on!

no offense to recent powerbook owners

Yeah I agree I personally use PowerMacs just for a personal computer. I can't stand having something so much less then the best when the difference in price is realistically so small.

I don't think the Powerbooks will be updated soon. I know it could possibly hurt sales but in all reality they compete very favorably with the rest of the laptops on the market. I due think they will be getting a new G4 in them very soon though.

 

[Sun Baked]

Originally posted by hvfsl
You can't put normal PC RAM in the new G5 Macs, this is because at WWDC Apple said it was 128bit RAM, this is the stuff that is normally used on graphics cards. This is also why it is more expensive than PC DDR400/333 RAM.

(HINT: 1 byte = 8 bits)

But it's dual channel and requires installation in pairs, not a single 128-bit Mac-only module.

DIMM Specifications

The RAM expansion slots accept 184-pin DDR SDRAM DIMMs that are 2.5 volt, unbuffered, 8-byte, nonparity, and DDR400-compliant (PC3200) or DR333-compliant (PC2700).