AMD EPYC 7351 vs Intel Core i9-10900KF Comparison

The AMD EPYC 7351 and Intel Core i9-10900KF occupy the same general performance band in the database, sitting at the 61st and 60th percentiles against all recorded CPUs respectively, but they arrive there from opposite directions. The EPYC 7351 is a 16-core, 32-thread server processor from AMD's Zen-based Naples generation, while the Core i9-10900KF is a 10-core, 20-thread desktop flagship built on Intel's Comet Lake architecture. Across every shared benchmark in the database, the EPYC 7351 wins, and it does so by a remarkably consistent margin of roughly 4.5 to 4.7 percent. The recorded data therefore makes this comparison unusually one-sided on paper, even though the two chips serve entirely different markets: Server/Workstation for the EPYC, Desktop for the Core i9.

Head-to-Head Benchmarks

The shared results between these two CPUs cover the Cinebench R15, R20, and R23 suites, in both single-core and multi-core variants, and the EPYC 7351 takes all six contests.

The multi-core picture shows the EPYC's core-count advantage translating directly into results. In Cinebench R15 multi-core, the EPYC 7351 posts 1989 points against 1901 for the Core i9-10900KF, a 4.6 percent win. Cinebench R20 multi-core repeats the story almost exactly: 8291 versus 7924, again a 4.6 percent gap. Cinebench R23 multi-core lands at 19742 versus 18867, a 4.6 percent advantage for the EPYC once more. The consistency of that margin across three different renderers suggests the outcome is structural rather than test-specific: the EPYC's additional six cores and twelve threads compensate for, and then exceed, the Intel chip's substantially higher clock speeds.

The single-core results are more surprising. The Core i9-10900KF boosts to 5.30 GHz against the EPYC 7351's 2.90 GHz, yet the database shows the EPYC ahead in every lightly threaded test. In Cinebench R15 single-core the EPYC scores 280 against 268, a 4.5 percent win. Cinebench R20 single-core goes 1170 to 1118 in the EPYC's favor, 4.7 percent. Cinebench R23 single-core reads 2787 versus 2663, another 4.7 percent win for the AMD part. Benchmark results indicate that in these recorded runs, the EPYC's per-cycle throughput overcame a clock speed deficit of over 2 GHz, a notable result given the Naples architecture predates Comet Lake by roughly three years.

For additional context, the Core i9-10900KF has recorded results in suites the EPYC 7351 does not share. Its Geekbench runs show 1744 single-core and 10733 multi-core points, and its 3DMark CPU profile scales from 850 in the single-thread test to 8919 at maximum threads, with intermediate scores of 1685 at 2 threads, 3308 at 4 threads, and 6214 at 8 threads. These figures place it in the neighborhood of CPUs such as the AMD EPYC 7281 (average score 5315, a 0 percent delta), the AMD Ryzen Threadripper 1920X (5306, 0.2 percent), the Intel Core i9-9900X (5301, 0.3 percent), and the Intel Core i9-13900TE (5342, -0.5 percent). The EPYC 7351's own average score of 5710 sits just above the AMD EPYC 7F32 (5703, 0.1 percent), the Ryzen Threadripper 2920X (5730, -0.4 percent), the Intel Core i9-7920X (5673, 0.7 percent), and the Intel Xeon W-2175 (5770, -1 percent). In other words, the EPYC competes a tier higher in the aggregate rankings, consistent with its clean sweep of the head-to-head tests.

FAQ

Q: Which CPU wins the shared benchmarks?

A: The AMD EPYC 7351 wins all six shared Cinebench tests, single-core and multi-core alike, with margins of 4.5 to 4.7 percent in every case.

Q: How do their average benchmark scores compare?

A: The EPYC 7351 records an average benchmark score of 5710 against 5316 for the Core i9-10900KF, and their percentile placements against all CPUs in the database are 61 and 60 respectively.

Q: Does the Core i9-10900KF's much higher clock speed give it the single-core win?

A: Not in the recorded data. Despite boosting to 5.30 GHz versus the EPYC's 2.90 GHz, the Core i9-10900KF trails in every shared single-core test, for example 2663 versus 2787 in Cinebench R23 single-core.

Q: Which chip supports ECC memory?

A: The EPYC 7351 supports ECC memory, which aligns with its Server/Workstation segment. The Core i9-10900KF does not support ECC.

Q: Are both CPUs still in production?

A: No. The database lists the EPYC 7351 as Active, while the Core i9-10900KF is listed as End-of-life.

Q: Do both CPUs have unlocked multipliers?

A: Yes, both the EPYC 7351 and the Core i9-10900KF are recorded with unlocked multipliers.

Architecture Differences

Both processors are fabricated on 14 nm process nodes, but by different foundries: the EPYC 7351 is built by GlobalFoundries on the Zen architecture under the Naples codename, while the Core i9-10900KF is built by Intel on its Comet Lake architecture. The EPYC 7351 packs 4,800 million transistors into a 213 mm² die; the database records no transistor count or die size for the Core i9-10900KF.

The core topology diverges sharply. The EPYC 7351 offers 16 cores and 32 threads against the Core i9-10900KF's 10 cores and 20 threads, and it does so at much lower frequencies: a 2.40 GHz base and 2.90 GHz boost versus 3.70 GHz base and 5.30 GHz boost. Cache is another major differentiator. The EPYC carries 96 KB of L1 per core, 512 KB of L2 per core, and a 64 MB shared L3. The Core i9 provides 64 KB of L1 per core, 256 KB of L2 per core, and a 20 MB shared L3. The EPYC therefore triples the Intel chip's total L3 capacity and doubles its per-core L2.

Platform capabilities also differ in kind, not just degree. The EPYC 7351 uses AMD Socket SP3 with an eight-channel DDR4 memory bus delivering 170.6 GB/s of bandwidth and PCIe Gen 3 connectivity. The Core i9-10900KF uses Intel Socket 1200 with a dual-channel DDR4 bus rated at 46.9 GB/s and PCIe Gen 3 with 16 lanes from the CPU. Neither chip has integrated graphics. Thermal design power is notably higher on the EPYC at 170 W versus 125 W for the Core i9, consistent with its core count and server orientation. The EPYC 7351 entered production in mid-2017; the Core i9-10900KF followed in 2020 with a launch MSRP of $509.

Specification Differences

The fields where these two CPUs differ, as recorded in the database:

• Series: EPYC 7001 series (AMD) versus Core 10th Gen (Intel)
• Market segment: Server/Workstation versus Desktop
• Socket: AMD Socket SP3 versus Intel Socket 1200
• Architecture / codename: Zen (Naples) versus Comet Lake
• Cores / threads: 16 / 32 versus 10 / 20
• Base clock: 2.40 GHz versus 3.70 GHz
• Boost clock: 2.90 GHz versus 5.30 GHz
• TDP: 170 W versus 125 W
• L1 cache: 96 KB per core versus 64 KB per core
• L2 cache: 512 KB per core versus 256 KB per core
• L3 cache: 64 MB shared versus 20 MB shared
• Memory bus: Eight-channel versus Dual-channel
• Memory bandwidth: 170.6 GB/s versus 46.9 GB/s
• ECC memory: Supported versus not supported
• PCIe: Gen 3 versus Gen 3, 16 lanes (CPU only)
• Foundry: GlobalFoundries versus Intel
• Transistors / die size: 4,800 million and 213 mm² versus not recorded
• Production status: Active versus End-of-life
• Release timing: 2017 versus 2020
• Part number: PS7351BEVGPAF versus SRH92

Both share a 14 nm process node, DDR4 memory support, unlocked multipliers, the absence of integrated graphics, and a 1-point gap in percentile placement (61 versus 60), which makes their specification divergence all the more striking.

Where Each One Wins

Based strictly on the recorded head-to-head results, the EPYC 7351 wins everywhere the two chips directly overlap. It leads by 4.6 percent in every multi-core Cinebench test (R15, R20, and R23), making it the clear choice for throughput-bound rendering and multi-threaded production work in this pairing. Its eight-channel memory subsystem with 170.6 GB/s of bandwidth and 64 MB of L3 cache further reinforce dense multi-threaded and memory-hungry server workloads, and its ECC support matters for reliability-sensitive deployments.

The Core i9-10900KF's case rests on different ground. It has no head-to-head wins, but its exclusive recorded results show strong scaling behavior in its own test set: its 3DMark CPU profile climbs from 850 single-threaded to 8919 at maximum threads, and its Geekbench results of 1744 single-core and 10733 multi-core demonstrate competitive per-thread responsiveness for a desktop part. Its lower 125 W TDP, desktop Socket 1200 platform, and 5.30 GHz boost clocks position it toward high-frequency desktop workloads rather than sustained multi-socket-class throughput. Its rivals cluster (EPYC 7281, Threadripper 1920X, Core i9-9900X, Core i9-13900TE) confirms it operates in a slightly lower aggregate tier than the EPYC 7351, whose rivals include the Xeon W-2175 and Threadripper 2920X.

The verdict from the data is simple: for any workload measured in the shared suite, the EPYC 7351 is the stronger performer, by about 4.6 percent in multi-core and 4.5 to 4.7 percent in single-core. The Core i9-10900KF's advantages lie in platform character rather than measured head-to-head output: higher clocks, lower TDP, and a desktop-oriented socket, at a launch MSRP of $509.