Solved Video card performance difference

March 28, 2012 at 18:05:09
Specs: Windows 7, Core2Duo
Just playing with a Dell XPS8300 - Core i7 2410, 8gig memory, 1tb HD, THX sound. It came with an AMD Radeon HD 6470 video card with 1gb GDDR-3 video memory. I loaded the latest drivers for the video card and the system had a Windows Experience rating of 5.0. I got my hands on an AMD Radeon HD 6670 with 1gb GDDR-5 video memory. I installed it in this machine loaded the latest drivers for this card also (I think that the drivers are the same for each card maybe?). Anyway the Windows Experience rating for this configuration is 5.9. Without looking at the specs for each card, can there be that much difference in GDDR-3 memory and GDDR-5 memory? All replies and opinions are greatly respected and appreciated.

Loretta


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#1
March 28, 2012 at 18:44:56
✔ Best Answer
"can there be that much difference in GDDR-3 memory and GDDR-5 memory"

Yes, there is a HUGE difference. GDDR5 memory has much greater throughput (aka bandwidth) than GDDR3. Not to mention the HD 6470 uses 64-bit memory & the HD 6670 uses 128-bit memory. Then there's the issue of the number of stream processors.....

I'm surprised the lowly HD 6470 could pull off a 5.0 rating. Is that for the card itself or the overall system rating?


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#2
March 28, 2012 at 19:09:21
Thanks for the fast reply. I believe that the 'gaming graphics' rating and overall system rating are the same with this card in this system. Well, this system has been offered to me for an old Nikon D70 and some other gear that I have. Thank you some so much for the info. Three things, death, taxes and....Computing.Net! Grazie!

Loretta


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#3
March 28, 2012 at 19:18:01
I am using the HD 4670 and get a graphics sub score pf 6.7 My overall score is 5.4 brought down by my disk data transfer rate.


< Edit > My mistake I read it wrong and ran with it.
Likely


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Related Solutions

#4
March 28, 2012 at 20:52:54
@ Rocco,

Is it an HD 6470 or HD 4670?


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#5
March 29, 2012 at 00:31:35
I am not suprised at all to see high score for weak hardwares, i think direct x 11 is a big plus for Win WEI score.

You know the real meaning of peace only if you have been through the war.


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#6
March 29, 2012 at 10:13:04
Sorry for the mistake. It is an AMD Radeon HD 6450 instead of the 6470.

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