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ATI M97 Already Using 5 GT/s GDDR5 Memory, Highest Memory Bandwidth for Any mGPU

btarunr

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#1
In an interesting observation, it has come to light that AMD's soon to be released ATI Mobility Radeon HD 4860 MXM modules will carry the industry's fastest 5 GT/s GDDR5 memory chips made by Qimonda. From the part name on the chips, IDGV1G-05A1F1C-50X. One can infer "50X" to be the bandwidth per pin at reference speeds: 5 GT/s (5 GB/s in one direction). Across the 128-bit wide memory bus the M97 HD 4860 has, the chips can churn-out a staggering 80 GB/s memory bandwidth, never before seen on any mGPU board. In comparison, NVIDIA's G92b-based GeForce GTX 280M delivers 60.08 GB/s and AMD's own M98 RV770-based Mobility Radeon HD 4850 doles-out 56.8 GB/s.

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DrPepper

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#2
I want a lappy with one of these babies in it :p
 
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#3
I want one of these in my netbook...:rockout:

That would be sweet.
 

newtekie1

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#4
I can't wait for these(or any GDDR5) to start finding their way into mid-range desktop cards.
 
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#5
I want one of these in my desktop!! I guess an adaptor would'nt do the trick, that would probly drop the wattage that my 4850 sucks back!!!
 
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#6
Make me wanna use a laptop
 
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#7
AMD has been pulling all sorts of "Superior Bandwidth" nonsense for years and years but in so many cases it has all boiled down to nothing, with many of their "Superior Bandwidth" innovations performing worse than whats already been on the market in all but one or two synthetic tests.

And I should know - Ive been burned by all of that very underhanded marketing on a few processors before (And YES their theoretical bandwidth WAS better, but they still performed worse).

Effective mathematical bandwidth does NOT ALWAYS translate into performance (And can even AGGRAVATE pre-existing bottlenecks, creating buffer overruns that can actually cause entire transfer cycles to drop).

Don't get me wrong, in GFX processing , bandwidth is vital to taking full advantage of a GPU. This does indeed LOOK like good news on the surface, but I'm going to wait for the benchmarks before I begin swishing my credit-card around...
 
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#8
agree with bazooka, so what that it has more bandwith than a desktop, it perform not even anywhere near of desktop model (as a tradition goes on)
 

btarunr

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#9
AMD has been pulling all sorts of "Superior Bandwidth" nonsense for years and years but in so many cases it has all boiled down to nothing, with many of their "Superior Bandwidth" innovations performing worse than whats already been on the market in all but one or two synthetic tests.

And I should know - Ive been burned by all of that very underhanded marketing on a few processors before (And YES their theoretical bandwidth WAS better, but they still performed worse).

Effective mathematical bandwidth does NOT ALWAYS translate into performance (And can even AGGRAVATE pre-existing bottlenecks, creating buffer overruns that can actually cause entire transfer cycles to drop).

Don't get me wrong, in GFX processing , bandwidth is vital to taking full advantage of a GPU. This does indeed LOOK like good news on the surface, but I'm going to wait for the benchmarks before I begin swishing my credit-card around...
Read Guru3D's review of the RV740. It is genuinely faster than the Radeon HD 4830, and at those figures, faster than the GeForce 9800 GT.
 
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#12
I can't wait for these(or any GDDR5) to start finding their way into mid-range desktop cards.
Aye, that's hopefully what the 4770 is going to have (or whatever they end up calling it).
 
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#14
wow , i was happy when i have 8800gt have 57Gb bandwidth , now i see 80G in note book that's much