Rumor: AMD Zen engineering samples leaked and benchmarked

With the recent graphics card releases more or less out of the way, it's now time to turn our collective attention to everything Zen. The new AMD CPUs are set to be released sometime in 2017, and it's only fitting that rumor mill has already started churning. A little while back, Guru3D got a lead on the specs for four variants of Zen CPUs.

The leak includes information on two Socket AM4-based units and two SP3-based beasts. As always, this is a rumor, so take this information with at least a couple barrels of sea salt. Here's a quick summary:

Socket Cores/threads Max. TDP L2 cache L3 cache Base clock Boost clock Idle clock Idle power
AM4 4/8 65W 2MB 8MB 2.8 GHz 3.2 GHz 550MHz 2.5W
AM4 8/16 95W 4MB 16MB 2.8 GHz 3.2 GHz 550MHz 5W
SP3 24/? 150W 12MB 64MB - 2.75 GHz 400MHz -
SP3 32/? 180W 16MB 64MB - 2.9 GHz 400MHz -

The rumors get a little more interesting than that, though. WCCFtech claims to have some figures for a benchmark of Ashes of the Singularity running on two particular engineering samples which the site named 1D and 2D, and that the game detected as 8-core, 16-thread CPUs. The samples apparently differ only in their revision number.

The reported benchmarks were conducted with a Radeon RX 480 graphics card. Using the "High" preset in Ashes at 1920x1080, the 1D unit turned out "CPU frame rates" of 58 FPS. The second engineering sample didn't fare so well, though. In turn, WCCFtech moved forward to compare the leaked results from 1D to three other CPUs—an FX-8350, a Core i5-4670K, and an i7-4790. The results came out as follows:

CPU Average CPU framerate
Core i7-4790 (3.6 / 4.0 GHz) 65.4
Zen ES 1D (2.8 / 3.2 GHz) 58
Core i5-4670K (3.4 / 3.8GHz) 52.6
FX-8350 (4.0 / 4.2 GHz) 42

Despite the Zen CPU's apparently-low clock speeds, the 1D sample acquited itself pretty well, coming out #2 in the ranking—in other words, 13% slower than the i7-4790 but roughly 10% faster than the i5-4670K. The FX-8350, rather predictably, was left behind in the dust.

Assuming any of the results check out, this bodes well enough for Zen. If the chipmaker can hopefully get the clock speeds up a little, there's a chance that meatier Zen CPUs might meet Intel's high-end Skylake CPUs in the ring for a showdown.

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