AMD EPYC 7351P vs Intel Core i9-10900KF Comparison

AMD EPYC 7351P vs Intel Core i9-10900KF: a 16-core Zen server processor from 2017 against a 10-core Comet Lake desktop flagship from 2020. The benchmark data shows a complete split: the EPYC 7351P dominates every Cinebench workload, while the Core i9-10900KF crushes Geekbench. The average benchmark score favors the EPYC 7351P at 5469 against 5316 for the Intel part, a 2.9% margin, but the per-test deltas are far more dramatic than that aggregate suggests. The EPYC 7351P sits at the 61st percentile of all CPUs, the Core i9-10900KF at the 60th, placing them in nearly identical overall standing despite their radically different designs.

Head-to-Head Benchmarks

The Cinebench results are uniformly one-sided. In Cinebench R15 multi-core, the EPYC 7351P scores 2231 against 1901 for the Core i9-10900KF, a 17.4% advantage. The single-core R15 test shows the same pattern: 314 versus 268, a 17.2% win for AMD. Moving to Cinebench R20, the multi-core gap holds at 17.3% (9296 vs 7924), and the single-core gap is again 17.4% (1312 vs 1118). Cinebench R23 repeats the trend: the EPYC 7351P leads 22135 to 18867 in multi-core and 3125 to 2663 in single-core, both 17.3% margins. Across all six Cinebench tests, the EPYC 7351P wins by nearly identical margins of 17.2% to 17.4%, regardless of core count or workload type.

The Geekbench results invert the picture completely. In Geekbench multi-core, the Core i9-10900KF scores 10733 against 4607 for the EPYC 7351P, a 57.1% deficit for AMD. The single-core Geekbench test is even more lopsided: 1744 versus 733, a 58% deficit. These are enormous gaps, far larger than any Cinebench delta. The EPYC 7351P wins 6 of 8 head-to-head tests, but the two Geekbench losses are by such wide margins that they dominate the average score comparison.

The nearest rival data adds context. The EPYC 7351P’s closest competitor is the Intel Xeon W-1290P, which averages 5443, just 0.5% behind. The Intel Core i9-10900X scores 5555, 1.5% ahead of the EPYC 7351P. For the Core i9-10900KF, the AMD EPYC 7281 matches it exactly at 5315 (0% delta), while the Intel Core i9-9900X trails by 0.3%. These rival relationships show both processors are tightly clustered with other high-end parts from their respective eras.

Architecture Differences

The EPYC 7351P uses AMD’s Zen architecture on the Naples codename, built on a 14 nm process at GlobalFoundries. It packs 16 cores and 32 threads with a 2.40 GHz base clock and 2.90 GHz boost clock. The Core i9-10900KF uses Intel’s Comet Lake architecture, also on a 14 nm process but at Intel’s own foundry, with 10 cores and 20 threads running at 3.70 GHz base and 5.30 GHz boost. The clock speed difference is substantial: Intel boosts 82.8% higher than AMD’s maximum, which explains the Geekbench single-core dominance despite similar per-core IPC expectations.

Cache configurations differ sharply. The EPYC 7351P has 96 KB L1 per core, 512 KB L2 per core, and 64 MB shared L3. The Core i9-10900KF has 64 KB L1 per core, 256 KB L2 per core, and 20 MB shared L3. The EPYC’s L3 cache is 3.2 times larger, and its per-core L2 is double, giving AMD a massive cache advantage for multi-threaded server workloads. The Intel part compensates with higher clocks and a more aggressive single-core design.

Memory subsystems are split by market intent. The EPYC 7351P supports DDR4 over an eight-channel memory bus with 170.6 GB/s bandwidth and ECC memory. The Core i9-10900KF uses dual-channel DDR4 with 46.9 GB/s bandwidth and no ECC support. The EPYC 7351P has 3.6 times the memory bandwidth, a critical factor for server workloads but largely irrelevant for desktop use. The Intel part’s PCIe implementation is Gen 3 with 16 lanes from the CPU; the EPYC 7351P also uses Gen 3 but through the SP3 socket’s server platform. The EPYC 7351P draws 170 W TDP versus 125 W for the Core i9-10900KF, reflecting its higher core count and server-oriented power delivery.

The EPYC 7351P targets the server/workstation segment and remains in active production, while the Core i9-10900KF is a desktop part now marked end-of-life. The EPYC 7351P launched in 2017, the Core i9-10900KF in 2020. Both have unlocked multipliers, but the EPYC’s boost ceiling of 2.90 GHz limits overclocking headroom compared to the Intel part’s 5.30 GHz. The Core i9-10900KF has a launch MSRP of $509; the EPYC 7351P has no listed launch MSRP in the data.

The Verdict

The data presents a clear choice based on workload. The EPYC 7351P wins every Cinebench test by 17.2% to 17.4%, covering both single-core and multi-core rendering scenarios. It also has 64 MB of L3 cache, eight-channel memory with 170.6 GB/s bandwidth, and ECC support, making it the appropriate pick for server virtualization, database workloads, or any task that scales across 16 cores and 32 threads. The Core i9-10900KF counters with a 57.1% multi-core and 58% single-core Geekbench advantage, plus a 5.30 GHz boost clock that dominates latency-sensitive desktop applications.

The average benchmark scores place the EPYC 7351P 2.9% ahead overall, but the Geekbench deltas are so extreme that the average masks the true nature of the comparison. The EPYC 7351P is not a general-purpose winner; it is a specialized server processor that happens to outperform in Cinebench. The Core i9-10900KF is not a general-purpose loser; it is a desktop processor that excels in Geekbench-style workloads. The 61st versus 60th percentile rankings confirm they are peers in overall performance, but the distribution of wins is polarizing.

For a system that runs rendering engines, scientific computing, or virtualized instances, the EPYC 7351P’s Cinebench lead and memory bandwidth make it the data-backed choice. For a desktop workstation running Geekbench-style applications, the Core i9-10900KF’s massive Geekbench margins and higher clocks are decisive. The EPYC 7351P’s 6-2 win count in direct head-to-head tests is impressive, but the two losses are by far larger margins than any of its six wins. The verdict depends entirely on whether the workload resembles Cinebench or Geekbench.

FAQ

Q: Which processor wins in Cinebench R23 multi-core?

A: The AMD EPYC 7351P wins with a score of 22135 against 18867 for the Intel Core i9-10900KF, a 17.3% advantage.

Q: How much faster is the Intel Core i9-10900KF in Geekbench single-core?

A: The Core i9-10900KF scores 1744 versus 733 for the EPYC 7351P, a 58% lead for Intel.

Q: What are the core and thread counts for each processor?

A: The AMD EPYC 7351P has 16 cores and 32 threads. The Intel Core i9-10900KF has 10 cores and 20 threads.

Q: Which processor supports ECC memory?

A: The AMD EPYC 7351P supports ECC memory. The Intel Core i9-10900KF does not.

Q: What is the memory bandwidth difference?

A: The EPYC 7351P provides 170.6 GB/s over an eight-channel bus, while the Core i9-10900KF provides 46.9 GB/s over a dual-channel bus, a 3.6 times advantage for AMD.

Q: What is the production status of each processor?

A: The AMD EPYC 7351P is listed as Active. The Intel Core i9-10900KF is listed as End-of-life.

Where Each One Wins

AMD EPYC 7351P wins in: All six Cinebench tests (R15, R20, R23; both single and multi-core) with margins between 17.2% and 17.4%. It also wins on memory bandwidth (170.6 GB/s vs 46.9 GB/s), L3 cache capacity (64 MB vs 20 MB), core count (16 vs 10), thread count (32 vs 20), and ECC support. The EPYC 7351P has a higher average benchmark score (5469 vs 5316) and a higher percentile ranking (61st vs 60th). Its 4,800 million transistors on a 213 mm² die provide a larger silicon budget for server features.

Intel Core i9-10900KF wins in: Geekbench multi-core (10733 vs 4607, a 57.1% margin) and Geekbench single-core (1744 vs 733, a 58% margin). It also wins on clock speed (5.30 GHz boost vs 2.90 GHz), lower TDP (125 W vs 170 W), and has a launch MSRP of $509 while the EPYC 7351P has none listed. The Core i9-10900KF also has exclusive benchmark coverage in 3DMark tests: 850 single-thread, 1685 for 2 threads, 3308 for 4 threads, 6214 for 8 threads, 8225 for 16 threads, and 8919 for max threads, none of which the EPYC 7351P has data for.