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Just installed pics - Gigabyte 7950 CF - AMD ZeroCore and Heaven Bench

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#1
I thought about grabbing 7950 CF at product launch but held out. With the recent price cuts, I caved. Just got em running and wanted to share first impressions.

Gigabyte went with a plastic shroud for the latest WindForce cooler. IMO, a shroud should be sturdy enough to hold the card by without flexing or bending; this proved to be the case as it's fairly thick plastic. The metal bracket used to stiffen the PCB looks good too. Nice job Gigabyte:


Installed pic:



AMD ZeroCore
I run multi-gpu and surf nearly as much as I game; so I liked the idea of ZeroCore upon hearing about it. Does it work? Seems so.

Here's GPU1 in idle:


and GPU2 (notice GPU, memory, and temp numbers):


Worth noting, ZeroCore will not engage with GPU-Z running. GPU2 will sit at 800 core and 1300 mem.

Sure a Kill-A-Watt is not the most precise way to measure power consumption; but it's
cheap and shows ZeroCore works. Here's system at idle just before ZeroCore engages:


and after:



Unigine Heaven 3.0
Plenty of benchmarks already out there so I did a quick run of Heaven using 560ti 448 SLI @ 800 core and 7950CF @ 950 core. A mismatch, but all I had on hand. 560ti 448 SLI posts some respectable numbers though.

560ti 448 SLI, no AA, 4x AF, tesslation disabled:


560ti 448 SLI, 4x AA, 16x AF, extreme tesslation:



7950 CF, no AA, 4x AF, tesslation disabled:


7950 CF, 4x AA, 16x AF, extreme tesslation:
 
Last edited:

cadaveca

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#2
No third card? Asrock board? Whut CPU clocks, stock? lulz. 57W is pretty good.
 
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#3
No third card? Asrock board? Whut CPU clocks, stock? lulz. 57W is pretty good.
No third card yet. :)

It's an ASRock Extreme 7 w/16GB quad channel and i7 3820 @ 4.2. I've been lazy and let the bios auto tune the OC/voltage but it seems to do very well. It does 1.24v @ 4.2 and 1.008v @ 1.2 during idle. Next bios setting is 4.4. I'll try that some time soon.

Oh someone at AT caught this, CCC reports 20% fan speed on card 2. They're OFF though..
 
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#4
how is the second card when under zerocore mode at 0 degrees celcius? Should it not be lower than ambient?
 

erocker

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#5
how is the second card when under zerocore mode at 0 degrees celcius? Should it not be lower than ambient?
The temperature sensors shut down when in zerocore or ulps mode.