AMD EPYC 7F32 vs Intel Core i9-7920X Comparison

The AMD EPYC 7F32 and Intel Core i9-7920X occupy opposite ends of the computing spectrum, yet benchmark data places them in the same performance tier. The EPYC 7F32, a server-focused Zen 2 part, and the i9-7920X, a desktop Skylake-X flagship, both land at the 61st percentile among all CPUs. Their average benchmark scores are separated by a razor-thin margin — 5703 for the EPYC versus 5673 for the Intel part, a 0.5% difference in favor of the AMD chip. That statistical near-deadlock makes this a compelling comparison of architectural philosophy rather than raw performance dominance.

FAQ

Q: Which processor has the higher core count?

A: The Intel Core i9-7920X features 12 cores and 24 threads, while the AMD EPYC 7F32 is equipped with 8 cores and 16 threads.

Q: How do their clock speeds compare?

A: The EPYC 7F32 has a higher base clock at 3.70 GHz versus 2.90 GHz, but the i9-7920X boasts a significantly higher boost clock of 4.40 GHz compared to 3.90 GHz.

Q: What is the memory bandwidth difference?

A: The EPYC 7F32 supports eight-channel memory with a peak bandwidth of 204.8 GB/s, whereas the i9-7920X uses quad-channel memory with a bandwidth rating of 85.3 GB/s.

Q: Which CPU supports ECC memory?

A: ECC memory is supported by the AMD EPYC 7F32, but the Intel Core i9-7920X does not offer ECC support.

Q: What are the manufacturing process nodes?

A: The EPYC 7F32 is built on a 7 nm process by TSMC, while the i9-7920X uses Intel's 14 nm process.

Q: Which processor has a higher single-core score in Cinebench R23?

A: The Intel Core i9-7920X edges out the EPYC 7F32 with a score of 2822 versus 2783, a 1.4% advantage.

Where Each One Wins

The Intel Core i9-7920X wins every head-to-head benchmark in the dataset, taking all six Cinebench tests across R15, R20, and R23 versions. The margins are consistent — a 1.4% lead in every single test, whether single-core or multi-core. This uniformity suggests the i9's advantage comes from its higher boost clock and additional cores, which scale across all threaded workloads. The i9-7920X also has the edge in single-threaded performance, with scores of 284 in R15, 1185 in R20, and 2822 in R23, versus the EPYC's 280, 1168, and 2783 respectively. For users prioritizing maximum raw throughput in Cinebench-style rendering, the Intel part is the clear winner.

The AMD EPYC 7F32, despite losing the benchmark sweep, wins on platform-level capabilities. Its eight-channel memory bus delivers 204.8 GB/s of bandwidth, more than double the i9's 85.3 GB/s. That bandwidth advantage, combined with ECC memory support and 128 PCIe Gen 4 lanes, makes it the superior choice for memory-intensive server workloads, large datasets, and multi-GPU configurations. The EPYC's smaller 7 nm process also gives it a transistor density advantage, with 15,200 million transistors packed into a 4x 74 mm² die configuration, versus the i9's 484 mm² monolithic die. In scenarios where memory throughput and I/O capacity outweigh raw core count, the EPYC 7F32 is the better fit.

Architecture Differences

The architectural divide between these two CPUs is stark. The AMD EPYC 7F32 is based on Zen 2 architecture, codenamed Rome, manufactured on a 7 nm process by TSMC. It uses a chiplet design with four separate dies, each measuring 74 mm², totaling 15,200 million transistors. The i9-7920X, in contrast, uses Intel's Skylake architecture, codenamed Skylake-X, built on a 14 nm process with a single 484 mm² die. The process node difference explains the EPYC's higher transistor count in a smaller total area.

Cache hierarchies differ substantially. The EPYC 7F32 has 64 KB of L1 and 512 KB of L2 per core, with 32 MB of L3 per die, totaling 128 MB of L3 cache. The i9-7920X also has 64 KB of L1 per core but doubles the L2 to 1 MB per core, while its L3 is a shared 16.5 MB pool. The EPYC's massive 128 MB L3 cache is a server-oriented design choice, while the i9's larger per-core L2 benefits latency-sensitive desktop workloads.

Memory controllers reflect their target markets. The EPYC 7F32 supports eight-channel DDR4 with a bandwidth rating of 204.8 GB/s and ECC memory. The i9-7920X uses quad-channel DDR4 with 85.3 GB/s bandwidth and no ECC. PCIe connectivity also diverges: the EPYC offers 128 Gen 4 lanes, while the i9 provides 44 Gen 3 lanes. The EPYC's socket is AMD Socket SP3, while the i9 uses Intel Socket 2066.

Specification Differences

The two processors differ across nearly every specification field. The EPYC 7F32 has 8 cores and 16 threads; the i9-7920X has 12 cores and 24 threads. Base clocks are 3.70 GHz for the EPYC versus 2.90 GHz for the i9, but boost clocks reverse the order at 3.90 GHz versus 4.40 GHz. TDP ratings show the EPYC at 180 W, higher than the i9's 140 W.

Memory support is a major differentiator: the EPYC uses eight channels with 204.8 GB/s bandwidth and ECC, while the i9 uses four channels with 85.3 GB/s and no ECC. PCIe versions and lane counts also differ — Gen 4 with 128 lanes for the EPYC, Gen 3 with 44 lanes for the i9. The EPYC's market segment is Server/Workstation; the i9's is Desktop. Production status differs as well: the EPYC is Active, while the i9 is End-of-life.

The EPYC 7F32 has a locked multiplier, whereas the i9-7920X is multiplier-unlocked. Release dates are roughly two and a half years apart: April 2020 for the EPYC, September 2017 for the i9. The launch MSRP for the EPYC 7F32 is $2100; for the i9-7920X, it is $1199.

Head-to-Head Benchmarks

The benchmark results are remarkably consistent — the Intel Core i9-7920X wins all six Cinebench tests, and each margin is exactly 1.4%. In Cinebench R15 multi-core, the i9 scores 2015 against the EPYC's 1987. The single-core R15 test shows 284 versus 280. Moving to R20, the i9 posts 8396 multi-core and 1185 single-core, while the EPYC manages 8281 and 1168 respectively. In R23, the i9 achieves 19991 multi-core and 2822 single-core; the EPYC follows with 19718 and 2783.

The 1.4% delta in every test indicates that the i9's 12-core configuration and higher boost clock provide a consistent, if modest, advantage across all rendering workloads. The EPYC's higher base clock and larger cache do not translate into a win in any Cinebench test. However, the EPYC's average benchmark score of 5703 is actually slightly higher than the i9's 5673, a 0.5% difference. This discrepancy arises because the EPYC's benchmark suite includes only Cinebench tests, while the i9 also has Geekbench scores — 9297 multi-core and 1394 single-core — which are not part of the EPYC's dataset.

The i9-7920X's nearest rival list shows it at a 1.1% disadvantage to the AMD Ryzen 7 PRO 3700, which scores 5610, and a 1% deficit against the Threadripper 2920X at 5730. The EPYC 7F32, meanwhile, sits 0.1% below the EPYC 7351 and 1.2% below the Xeon W-2175. Both chips occupy the same performance neighborhood, with the i9's benchmark sweep being more a reflection of its higher clock speeds than any fundamental architectural superiority. The data shows that for Cinebench workloads, the i9-7920X is the stronger part, but the EPYC 7F32's platform features — memory bandwidth, ECC, and PCIe lanes — make it the better choice for server deployments where those attributes matter more than a 1.4% rendering score difference.