8350rocks :
AMD asked them to publish 1080, 1440, and 4K reviews together. They did not ask them to *not* do 1080p, they just asked them to show higher resolutions. This was clarified by Lisa Su in the reddit AMA and was characterized as Steve making a gross uncharacterized jab.
Other reviews confirm GN claims. For instance pcgamer claims: "AMD's first suggestion was to test at 1440p or 4K, which is complete bunk. Testing higher resolutions will absolutely put Ryzen's gaming performance closer to on par with Intel, but only in the sense that running higher resolutions shifts the bottleneck to the GPU. Even AMD's FX-series performs relatively close to Intel in many games, provided you're running at 4K. But if you want to know how Ryzen compares to Core i5/i7 when the GPU isn't the bottleneck, you need to test at lower resolutions."
Note that AMD didn't suggest them to test both 1080p and 4K (or 1440p), but to test only at 4K (or 1440p) to hide the problem by generating a GPU bottleneck.
Also, as noted by GN, AMD public demos of gaming on Ryzen were run exclusively at 4K generating a GPU bottleneck and hidding the problem to everyone.
8350rocks :
Additionally..Steve from GN published a review stating that GPUs are better for video encoding. Except that they are not used for professional video encoding...at all.
GN is rigth. Funny enouh it is the own AMD which has been saying us for years that GPUs are better for that kind of workloads. I still recall when AMD announced to everyone that tasks as Handbrake would run faster on a GPU than in a CPU. The reason is that GPUs are more optimized for throughput whereas CPUs are more optimized for latency. This is also the basis for HSA (Heterogenenous System Architecture) which identifies CPUs with LCUs (Latency Compute Units) and GPUs with TCUs (Throughput Compute Units).
8350rocks :
Steve also contradicted himself in his review...he ignored the minimum FPS where Ryzen was running neck and neck with all the Intel parts, but the maximum FPS was lower.
I saw him discussing minimum FPS also and they were lower than in an i5 in several titles.
8350rocks :
Additionally, they tested in DX12 exclusively, used odd blender settings, and other weird methodology. Joker tested in DX11, and his results are reflected by other DX11 tests.
Not true. GN also tested DX11 titles. Joker tests were unprofessional (large marging of error) and irrelevant because he chose odd settings that generated a GPU bottleneck with the GPU at 99% of load.
8350rocks :
This reddit nitpick of GN's review pretty much sums it up: https://www.reddit.com/r/Amd/comments/5xgonu/analysis_of_gamersnexus_r7_1800x_review_an_i5_in/
GN conclusions agree with all other reviews that also found that Ryzen is not good at gaming. There are a fair good consensus among reviewers.
PcGamer: "
The AMD Ryzen 7: plenty of power, but underwhelming gaming".
Arsctechnica: "
an excellent workstation CPU, but it doesn't game as hard as we hoped".
Extremetech: "
Zen is an amazing workstation chip with a 1080p gaming Achilles heel"
And of course TomsHardware: "
It’s hard to recommend the Ryzen 7 1800X over Intel's lower-cost quad-core chips for gaming, especially given the Core i7-7700K's impressive performance."
I think the best comment on that reddit thread was made by the user that writes: "
aka: Joker got the biased results we wanted out of hundreds of other reviewers and that is why we like him and are throwing GN and others under the bus".
8350rocks :
All of this leads me to a few conclusions regarding the launch:
The BIOS was very buggy, and this was reflected in numerous Asus reviews, Gigabyte seemed to fare much better overall in that regard, especially in regards to memory timings and higher memory clock support.
Problems have been reproduced on non-Asus mobos.
8350rocks :
The CCX cross threading is a major issue, supposedly windows is patching it next month, we will see. Windows 7 posts gaming numbers for Ryzen that are anywhere from 10-16% better according to the Stilt. Performance in other areas sees a significant improvement as well.
The CCX approach with a split LLC is weird. It is AMD fault, not everyone else. In any case, I don't expect large gains from patching Windows. Recall the Bulldozer scheduler, it improved performance by about 2--5%.