Show Your Support: Did you know that the hundreds of articles written on Phoronix each month are mostly authored by one individual? Phoronix.com doesn't have a whole news room with unlimited resources and relies upon people reading our content without blocking ads and alternatively by people subscribing to Phoronix Premium for our ad-free service with other extra features.
The Technical Workloads Where AMD Ryzen 9 7900X3D/7950X3D CPUs Are Excellent
For AI workloads like with the Microsoft ONNX Runtime, the Zen 4 3D V-Cache processors can make a lot of sense depending upon the particular model and its size. With the fcn-resnet101-11 model, the 7900X3D is faster than even the 7950X while the 7950X3D takes a commanding lead over the rest of the 7900 series line-up.
These X3D processors also had a significant lead in lower latency as well.
With the advantages seen in ONNX, the Ryzen 9 7900X3D/7950X3D actually come out as great value even with their $100~150 premium over the X non-3D models.
The Zen 4 3D V-Cache processors are a particularly powerful combination with sporting AVX-512 too that is quite beneficial for many AI workloads.
Intel's OpenVINO also benefited a lot from the AMD 3D V-Cache Zen 4 processors for various models. A 7900X3D could match the 7950X with an FP16 vehicle detection model...
On a performance-per-dollar was comparable between the X and X3D SKUs.
All the while the Ryzen 9 7900X3D was pulling 102 Watts on average compared to 172 Watts with the 7900X and the Ryzen 9 7950X3D was pulling 118 Watts on average compared to 192 Watts with the 7950X. The power efficiency improvements here were phenomenal.
The lower CPU power consumption with the 7900X3D/7950X3D also translated to much lower core operating temperatures with the X3D processors all while using the same Corsair water cooling setup.