MojoKid writes: AMD has finally lifted the veil on independent reviews of its new Ryzen series of desktop processors that bring the company's CPU architecture back more on competitive footing versus its rival, Intel's Core series. The initial family of Ryzen processors consists of three 8-core chips, the Ryzen 7 1800X at 3.6GHz with boost to 4.1GHz, the Ryzen 7 1700X at 3.4Ghz with boost to 3.8GHz, and the Ryzen 7 1700 at 3GHz with boost to 3.7GHz. Each has support for 2 threads per core, for a total of 16 threads with 16MB of L3 cache on-board, 512K of L2 and TDPs that range from 65 watts for the Ryzen 7 1700 at the low-end, on up to 95 watts for the 1700X and 1800X. In comparison to AMD's long-standing A-series APUs and FX-series processors, the new architecture is significantly more efficient and performant than any of AMD's previous desktop processor offerings. AMD designed the Zen microarchitecture at the heart of Ryzen with performance, throughput, and efficiency in mind. Initially, AMD had reported a 40% target for IPC (instructions per clock) improvement with Zen but actually realized about a 52% lift in overall performance. In the general compute workloads, rendering, and clock-for-clock comparisons, the Ryzen 7 1800X either outperformed or gives Intel's much more expensive Core i7-6900K a run for its money. The lower clock speeds of the Ryzen 7 1700X and 1700 obviously resulted in performance a notch behind the flagship 1800X, but those processors also performed quite well. Ryzen was especially strong in heavily threaded workloads like 3D rendering and Ray Tracing, but even in less strenuous tests like PCMark, the Ryzen 7 series competed favorably. It's not all good news, though. With some older code, audio encoding, lower-res gaming, and platform level tests, Ryzen trailed Intel -- sometimes by a wide margin. There's obviously still optimization work that needs to be done -- from both AMD and software developers.