gamerk316
Glorious
http://www.pcper.com/reviews/Graphics-Cards/Frame-Rating-Dissected-Full-Details-Capture-based-Graphics-Performance-Testin
Two things jump as a concern for AMD here:
And prehaps even worse:
I'm hoping Techreport, PCper, and others continue to press AMD until they fix their drivers. I mean, when I still had a 4890, the driver install program crashed and I had to install drivers via command prompt. Throw latency and non-working Vsync on top, and right now, I would never even consider an AMD GPU.
Two things jump as a concern for AMD here:
AMD CrossFire and Eyefinity Concerns
It will become painfully apparent as we dive through the benchmark results on the following pages, but I feel that addressing the issues that CrossFire and Eyefinity are creating up front will make the results easier to understand. We showed you for the first time in Frame Rating Part 3, AMD CrossFire configurations have a tendency to produce a lot of runt frames, and in many cases nearly perfectly in an alternating pattern. Not only does this mean that frame time variance will be high, but it also tells me that the value of performance gained by of adding a second GPU is completely useless in this case. Obviously the story would become then, “In Battlefield 3, does it even make sense to use a CrossFire configuration?” My answer based on the below graph would be no.
And prehaps even worse:
At first I was afraid something was going on with our capture hardware, that somehow the EDID of the Datapath VisionDVI-DL card was incorrectly communicating with the AMD GPUs. But in fact, we saw several problems and inconsistencies with AMD’s graphics performance when more than one display was attached to the system, even if we were NOT in an Eyefinity setup! As I later learned, enabling Vsync actually does not work at all with Eyefinity and that, combined with the results I have seen (of which the screenshot above is an indicator) with our testing, lead me to believe that something is fundamentally wrong with AMD’s Eyefinity implementation. And if it’s not “wrong”, it is definitely counter intuitive. We’ll be asking AMD for more information in the coming weeks and hope to get more information from them as our Frame Rating process evolves.
I'm hoping Techreport, PCper, and others continue to press AMD until they fix their drivers. I mean, when I still had a 4890, the driver install program crashed and I had to install drivers via command prompt. Throw latency and non-working Vsync on top, and right now, I would never even consider an AMD GPU.