AMD EPYC 7272 vs Intel Core i9-10920X Comparison

The Intel Core i9-10920X and AMD EPYC 7272 are both 12-core, 24-thread processors, but they target completely different market segments. The data shows a clear performance sweep for the Intel part across all six head-to-head Cinebench tests, with margins consistently around 2.2-2.3%. However, the EPYC 7272 counters with a substantially lower 120W TDP, eight-channel memory support, and ECC memory validation, making it the choice for server reliability rather than raw rendering speed. The Intel part wins every benchmark included in the comparison, yet the AMD processor’s architectural advantages in memory bandwidth and platform capabilities tell a different story for enterprise workloads.

Where Each One Wins

The Intel Core i9-10920X wins every single benchmark in the head-to-head comparison. It takes all six Cinebench tests, spanning R15, R20, and R23 in both multi-core and single-core variants. The multi-core results show a consistent 2.2% advantage in each test: Cinebench R15 scores 2203 against 2155, R20 scores 9181 against 8982, and R23 scores 21861 against 21386. Single-core tests follow the same pattern, with the Intel part leading by 2.3% in R15 (311 vs 304) and R20 (1296 vs 1267), and by 2.2% in R23 (3086 vs 3019).

The EPYC 7272’s wins are not in raw Cinebench scores but in platform attributes. It offers an eight-channel memory bus compared to the Intel’s quad-channel, and it supports ECC memory while the Intel does not. The EPYC also carries a 120W TDP versus the Intel’s 165W, indicating significantly lower power draw under load. For server applications that prioritize memory bandwidth, error correction, and power efficiency over single-thread burst performance, the EPYC 7272 is the superior platform despite losing every computational benchmark in this comparison.

Architecture Differences

The architectural divide is stark. The Intel Core i9-10920X uses Intel’s 14nm process with a Cascade Lake-X architecture, built for the Intel Socket 2066 platform. The AMD EPYC 7272 uses a 7nm process from TSMC with the Zen 2 architecture, codenamed Rome, on AMD Socket SP3. The manufacturing difference is significant: the AMD chip packs 7,600 million transistors across 2x 74 mm² dies, while the Intel die size and transistor count are not listed in the data.

Cache layouts differ substantially. Both share 64 KB of L1 cache per core, but the Intel part has 1 MB of L2 per core and 19.25 MB of shared L3 cache. The EPYC 7272 has 512 KB of L2 per core and a larger 64 MB total L3 cache arranged as 32 MB per die. This larger L3 pool is typical for server workloads that benefit from bigger on-chip caches for repeated data access.

PCIe support also separates them. The Intel part provides PCIe Gen 3, while the EPYC 7272 offers PCIe Gen 4 with 128 lanes available from the CPU. The AMD platform’s newer PCIe standard doubles the bandwidth per lane, which matters for high-speed storage and accelerators. The EPYC also carries an unlocked multiplier set to false, meaning it is locked, while the Intel i9-10920X has an unlocked multiplier for overclocking — a feature that aligns with its desktop market segment.

Head-to-Head Benchmarks

The benchmark results are remarkably consistent. The Intel Core i9-10920X wins all six Cinebench tests with identical or near-identical margins. The largest relative win is in single-core performance, where the Intel part leads by 2.3% in both Cinebench R15 (311 vs 304) and R20 (1296 vs 1267). Multi-core tests show a 2.2% lead across R15, R20, and R23, with scores of 2203 vs 2155, 9181 vs 8982, and 21861 vs 21386 respectively.

These margins are small but uniform, suggesting a consistent clock-speed advantage rather than an architectural edge. The Intel part boosts to 4.80 GHz versus the EPYC’s 3.20 GHz, a 1.60 GHz gap that explains the single-core superiority. In multi-core workloads, the Intel’s higher base clock of 3.50 GHz versus 2.90 GHz for the EPYC contributes to its lead. The EPYC’s larger L3 cache and eight-channel memory bandwidth do not translate into Cinebench wins, as that benchmark is primarily compute-bound rather than memory-bandwidth-bound.

The average benchmark scores reflect this overall trend. The Intel part has an average benchmark score of 6347 across all its tests, while the EPYC averages 6186. The Intel’s nearest rivals include the AMD EPYC 7551 (deltaPct -0.7) and Intel Core i7-12800HE (deltaPct -1.9), indicating it sits in a competitive mid-range performance envelope. The EPYC’s nearest rivals include the Intel Core i9-7940X (deltaPct 0.6) and AMD EPYC 7501 (deltaPct 0.9), showing similar performance class despite the architectural differences.

Specification Differences

The two processors differ across nearly every major specification category. The Intel Core i9-10920X has a base clock of 3.50 GHz and boost clock of 4.80 GHz, while the AMD EPYC 7272 sits at 2.90 GHz base and 3.20 GHz boost. TDP is 165W for Intel versus 120W for AMD. The Intel uses Intel Socket 2066, the AMD uses AMD Socket SP3. Process nodes are 14nm (Intel) versus 7nm (TSMC), with the AMD chip using a completely different foundry.

Memory support shows the biggest platform divergence. Both support DDR4, but the Intel part uses a quad-channel memory bus while the EPYC 7272 uses an eight-channel bus with a listed memory bandwidth of 85.3 GB/s. The EPYC also supports ECC memory, which the Intel does not. PCIe generations differ: Gen 3 for Intel versus Gen 4 with 128 lanes for AMD. The EPYC has a locked multiplier, while the Intel is unlocked for overclocking. Release dates are close, with the EPYC launching on 2019-08-06 and the Intel on 2019-10-18. The EPYC carries a launch MSRP of $625, while the Intel’s launch MSRP is not listed. Market segments are clearly split: the Intel is a Desktop part, the AMD is Server/Workstation.

FAQ

Q: Which processor is faster in multi-core Cinebench tests?

A: The Intel Core i9-10920X wins all three multi-core Cinebench tests. It scores 2203 in R15, 9181 in R20, and 21861 in R23, compared to the AMD EPYC 7272’s 2155, 8982, and 21386. The Intel lead is consistently 2.2% across these tests.

Q: Does the AMD EPYC 7272 support ECC memory?

A: Yes, the AMD EPYC 7272 supports ECC memory. The Intel Core i9-10920X does not support ECC memory. This is a key differentiator for server reliability.

Q: What is the memory channel configuration for each processor?

A: The Intel Core i9-10920X uses a quad-channel memory bus. The AMD EPYC 7272 uses an eight-channel memory bus with a listed memory bandwidth of 85.3 GB/s.

Q: Which processor has a higher boost clock?

A: The Intel Core i9-10920X has a boost clock of 4.80 GHz. The AMD EPYC 7272 has a boost clock of 3.20 GHz. The Intel part also has a higher base clock at 3.50 GHz versus 2.90 GHz.

Q: What is the TDP difference between these two processors?

A: The Intel Core i9-10920X has a TDP of 165W. The AMD EPYC 7272 has a TDP of 120W, which is 45W lower.

Q: Which processor has a larger L3 cache?

A: The AMD EPYC 7272 has a total L3 cache of 64 MB, arranged as 32 MB per die. The Intel Core i9-10920X has 19.25 MB of shared L3 cache.

The Verdict

The Intel Core i9-10920X is the clear winner for raw computational performance. It beats the AMD EPYC 7272 in every Cinebench test, with a 2.2-2.3% margin across both single-core and multi-core workloads. Its higher clock speeds — 4.80 GHz boost versus 3.20 GHz — give it a decisive advantage in latency-sensitive and lightly threaded tasks. For desktop users who prioritize maximum rendering speed and overclocking flexibility, the unlocked multiplier and higher benchmark scores make the Intel part the straightforward choice.

The AMD EPYC 7272 wins on platform capability and efficiency. Its 120W TDP is significantly lower than the Intel’s 165W, and its eight-channel memory bus with 85.3 GB/s bandwidth offers far greater memory throughput for server workloads. ECC memory support is critical for data integrity in enterprise environments. The PCIe Gen 4 with 128 lanes provides modern connectivity that the Intel’s Gen 3 cannot match. For server and workstation deployments where memory bandwidth, error correction, and power efficiency matter more than a 2.2% Cinebench margin, the EPYC 7272 is the superior platform.

The data does not support a single universal winner. The Intel Core i9-10920X is the better processor for desktop enthusiasts who want the fastest Cinebench scores and overclocking headroom. The AMD EPYC 7272 is the better processor for server administrators who need ECC memory, eight-channel bandwidth, and lower power consumption. The 12-core, 24-thread count is identical, but the surrounding platform tells the real story. Choose Intel for speed, choose AMD for server functionality.