GoKawiilLeaked AMD EPYC 9996 benchmark shows Zen 6c single-core gains over Zen 5
A leaked GeekBench 7 result for AMD's unreleased 256-core EPYC 9996, built on Zen 6c cores, was compared directly against a Ryzen 7 9700X (Zen 5) clocked at the same 4.1GHz by enthusiast 326powah. The EPYC 9996 packs 128MB L3 cache per 32-core CCD across eight CCDs for 1GB total L3, plus a 1024-bit memory bus offering roughly 1.64 TB/s of bandwidth, though the test focused on single-threaded performance where bandwidth isn't a major factor.
GoKawiil's interpretation of the reporting above, not reported fact.
Because the comparison matched clock speeds, it offers a rough gauge of per-core architectural improvement (IPC) in Zen 6c versus Zen 5, though the originally reported 15% gain figure appears disputed or still uncertain according to the source. Leaked server-chip benchmarks like this can hint at AMD's roadmap direction months before official launch, but single leaked results from unreleased silicon should be treated cautiously until AMD confirms specs and performance.
- Leaked EPYC 9996 features 256 Zen 6c cores, 1GB total L3 cache, and a 1024-bit memory bus.
- A clock-matched single-thread test against a Ryzen 7 9700X suggests possible Zen 6c IPC gains over Zen 5.
- Benchmark figures remain unofficial and unconfirmed by AMD, so actual performance claims should be treated with caution.
AMD Ryzen 7 9700X Processor — The Ryzen 7 9700X is the very Zen 5 desktop chip used as the benchmark baseline in this leak, making it a great way to experience AMD's current-gen architecture firsthand. It's a capable 8-core processor for gaming and productivity, and owning one lets you appreciate just how big a leap Zen 6c's reported IPC gains could be.”,
See AMD Ryzen 7 9700X Processor on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: tomshardware.com — Zak Killian, 2026-10-26
Published there as: “Leaked 256-core Zen 6c EPYC CPU destroys Zen 5 in early single-threaded benchmarks hints at 24% IPC gain”
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