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Post subject: ATI Radeon HD 5970  PostPosted: Jan 26, 2010 - 12:17 AM
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I have never seen a video card come standard with water cooling only for the GPU. If this has double the Streaming Process Units (SPU) of the previous series (HD 5870) is it twice as powerful? I thought the power of a card was judged more by the core clock and memory clock.

HD 5970
3200 SPU
750MHz Core Clock
$829.99


HD 5870
1600 SPU
850MHz Core Clock
$439.99
 
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Post subject: RE: ATI Radeon HD 5970  PostPosted: Jan 26, 2010 - 07:06 PM
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I thought the power of a card was judged more by the core clock and memory clock.



theres the mistake....


the power is measured by the bus homie....

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Post subject: RE: ATI Radeon HD 5970  PostPosted: Jan 27, 2010 - 12:44 AM
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no core clock and memory clock only get you incremental increases in speeds, as that increases the rate data moves.

Adding more paths for the data to move down increases the data volume by a factor of 2.

put in laymen terms, double the traffic lanes, moves more cars, than a slightly faster speed limit.
 
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Post subject: RE: ATI Radeon HD 5970  PostPosted: Jan 27, 2010 - 01:19 PM
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ed zachary... Smile

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Post subject: RE: ATI Radeon HD 5970  PostPosted: Jan 27, 2010 - 08:49 PM
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Didn't they use to show the data volume by the number of pipelines? Why are they now putting it in Streaming Processing Units and how do they compare?
 
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Post subject: RE: ATI Radeon HD 5970  PostPosted: Jan 28, 2010 - 01:18 PM
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yes pipelines still are the measurement... and the bit of the bus

SPU is a kinda new thing (from my understanding); it involves CPU/GPU integration on one chip; as well as taking the load off of the gpu by utilizing the CPU for physics and math calcs. (See PhysX)

Like I said thats from the best of my knowledge, maybe vandyl or bandit can add more useful info?

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Post subject: RE: ATI Radeon HD 5970  PostPosted: Jan 30, 2010 - 09:44 PM
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GPUs are becoming so multipurpose today that you're doing good if you can keep up with just one brand or the other (nvidia and ati)

basically, both companies are pushing the multi-purpose computing features. For ATI, you've got what's called an SPU - basically, it's a "core" made up of a couple of mechanisms that process and texture in a single pass.

just search TomsHardware.com - they've got some really good articles that explain what's going on.

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