AMD’s next dense-core server processor has surfaced in a benchmark leak, apparently beating Zen 5 by 16.5 per cent at the same clock speed.
According to Guru3D, a purported EPYC 9996 engineering sample scored 2,847 points in Geekbench 7.1’s single-core test at about 4.1GHz. A Ryzen 7 9700X fixed at the same nominal frequency managed 2,444 points.
The reported server chip packs 256 cores, 512 threads and 1GB of L3 cache. Even with that many cores, someone inevitably wants to know how fast a single one can go.
The result came from a system identified as the Grey Box Shifter, Dell’s PowerEdge R9815, running Linux and Geekbench 7.1.0 with AVX2. The Ryzen comparison used CachyOS, DDR5-6000 CL34 memory and a 2,000MHz fabric clock.
Matching clock speeds makes the comparison interesting, although different platforms, memory configurations, and cache arrangements complicate any attempt to isolate a clean architectural improvement. Across single-core workloads, the EPYC sample reportedly led the Ryzen processor by 8.2 to 25.7 per cent.
HTML5 Browser, Photo Editor, Structure from Motion and Video Player produced some of the larger gains. File Compression and Clang showed smaller differences.
That variation gives enthusiasts plenty of opportunities to select whichever result best supports their existing opinions. The aggregate score remains specific to Geekbench’s workload mix.
A separate comparison put the sample against a Zen 5-based EPYC 4545P, which reportedly scored 3,064 points while reaching approximately 5.45GHz.
The older processor retained the higher absolute score, but needed a substantially higher clock speed. Dividing scores by frequency suggests a larger advantage for Zen 6c, although that arithmetic cannot account for platform differences or changing boost behaviour.
Zen 6c uses AMD’s compact, high-density core design for processors with large core counts. Desktop Ryzen chips using standard Zen 6 cores will have different configurations, so these results offer limited guidance on future gaming performance.
Engineering firmware, memory settings and power limits could change before production hardware ships. The leak provides no reliable indication of final pricing, power consumption or shipping frequencies.
AMD has not confirmed the EPYC 9996 benchmark. Guru3D attributes the reported results and comparisons to posts from hardware watchers @9550pro and @326powah.
