CPU Comparison

The AMD EPYC 7281 and AMD Ryzen Threadripper 1920X are both 14nm Zen-based processors from 2017, yet they target completely different worlds: one is a server/workstation part on Socket SP3, the other a desktop enthusiast part on Socket SP3r2. The benchmark data shows a clear, consistent sweep for the Threadripper 1920X across every Cinebench test, but the EPYC 7281 counters with enterprise features like eight-channel memory and ECC support. The average benchmark scores are nearly identical, 5315 for the EPYC versus 5306 for the Threadripper, placing both in the 60th percentile of all CPUs, but the head-to-head results tell a story of clock speed versus core count.

The Verdict

The data points to a straightforward conclusion: the AMD Ryzen Threadripper 1920X wins every single benchmark in the head-to-head comparison. It takes all six Cinebench tests, with margins ranging from -6.4% to -6.5% across both multi-core and single-core workloads. This is not a close contest, the Threadripper is uniformly faster in rendering and compute tasks. The EPYC 7281, despite having 16 cores and 32 threads versus the Threadripper's 12 cores and 24 threads, never catches up. The reason is clock speed: the Threadripper runs at a 3.50 GHz base and 4.00 GHz boost, while the EPYC is limited to 2.10 GHz base and 2.70 GHz boost.

Who should pick which? For pure performance in Cinebench-style workloads, the Threadripper 1920X is the clear choice, as its benchmark scores are higher across the board. The EPYC 7281, however, is the only option if you need eight-channel memory bandwidth (170.6 GB/s versus 85.3 GB/s) or ECC memory support, which the Threadripper lacks entirely. The EPYC also fits into a server platform with 60 PCIe Gen 3 lanes (CPU only), whereas the Threadripper's PCIe configuration is not specified in the data. If your workload is memory-bandwidth-bound or requires error-correcting memory, the EPYC 7281 is the pick despite losing every benchmark. If raw compute speed is the priority, the Threadripper 1920X is the winner.

Architecture Differences

Both chips are built on the same Zen architecture, but they diverge significantly in implementation. The EPYC 7281 is part of the Naples codename, described as "EPYC (Zen (Naples))", while the Threadripper 1920X uses the Whitehaven codename, listed as "Ryzen Threadripper (Zen (Whitehaven))". Both use a 14nm process from GlobalFoundries, but the transistor counts tell a different story: the EPYC has 4,800 million transistors on a 213 mm² die, while the Threadripper packs 9,600 million transistors across two 213 mm² dies. This die configuration explains why the Threadripper has a higher TDP of 180 watts versus the EPYC's 170 watts.

Cache layouts are similar in structure but differ in naming: the EPYC lists L3 as "32 MB (shared)", while the Threadripper lists it as "32 MB" without the shared qualifier. Both have identical per-core L1 (96 KB) and L2 (512 KB) caches. The memory controllers are the biggest architectural split, the EPYC uses an eight-channel DDR4 bus with 170.6 GB/s bandwidth, while the Threadripper uses quad-channel DDR4 with 85.3 GB/s. The EPYC supports ECC memory; the Threadripper does not. Sockets differ as well: the EPYC uses AMD Socket SP3, while the Threadripper uses AMD Socket SP3r2. Both have unlocked multipliers, but the EPYC is aimed at the Server/Workstation market segment, while the Threadripper is classified as Desktop.

Where Each One Wins

The Threadripper 1920X wins in every benchmark category represented in the data: Cinebench R15, R20, and R23, both single-core and multi-core. The largest margins are consistent at around -6.4% to -6.5% in the EPYC's favor (meaning the EPYC is that much slower). For example, in Cinebench R23 multi-core, the Threadripper scores 19640 versus the EPYC's 18377, a difference of 1263 points. Single-core scores show a similar pattern: 2772 versus 2594 in R23, a 178-point gap. This suggests the Threadripper's higher clock speeds (3.50/4.00 GHz versus 2.10/2.70 GHz) dominate the EPYC's core-count advantage (16 vs 12) in these workloads.

The EPYC 7281 does not win any benchmark, but its architectural strengths lie elsewhere. The eight-channel memory bus provides 170.6 GB/s of bandwidth, exactly double the Threadripper's 85.3 GB/s. For workloads that are memory-bandwidth-sensitive, such as large database operations or virtualized environments, this could be a decisive advantage, though no such benchmarks are present in the data. The EPYC also offers ECC memory support, which is critical for data integrity in server environments. The Threadripper's 60 PCIe Gen 3 lanes (CPU only) are a specific feature, but the EPYC's PCIe configuration is not listed, so no comparison can be made there.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7281 has 16 cores and 32 threads, while the AMD Ryzen Threadripper 1920X has 12 cores and 24 threads.

Q: Why does the Threadripper 1920X outperform the EPYC 7281 in Cinebench despite having fewer cores?

A: The Threadripper has significantly higher clock speeds: a 3.50 GHz base and 4.00 GHz boost, versus the EPYC's 2.10 GHz base and 2.70 GHz boost. This clock advantage offsets the core-count deficit in these tests.

Q: What is the average benchmark score difference between the two?

A: The EPYC 7281 has an average benchmark score of 5315, while the Threadripper 1920X scores 5306. The delta is 0.2% in the EPYC's favor, making them statistically tied on average.

Q: Does the EPYC 7281 support ECC memory?

A: Yes, the EPYC 7281 supports ECC memory. The Threadripper 1920X does not support ECC memory.

Q: What is the memory bandwidth difference between the two?

A: The EPYC 7281 has an eight-channel memory bus providing 170.6 GB/s, while the Threadripper 1920X has a quad-channel bus providing 85.3 GB/s. The EPYC offers exactly double the bandwidth.

Q: Which processor has a higher launch MSRP?

A: Only the Threadripper 1920X has a listed launch MSRP of $799. The EPYC 7281 has no launch MSRP data provided.

Head-to-Head Benchmarks

The head-to-head data shows a complete sweep for the Threadripper 1920X, with every delta hovering around -6.4% to -6.5%. In Cinebench R15 multi-core, the Threadripper scores 1979 against the EPYC's 1852, a delta of -6.4%. Single-core R15 shows 279 versus 261, a -6.5% delta. Moving to Cinebench R20, multi-core results are 8248 for the Threadripper and 7718 for the EPYC, again -6.4%. Single-core R20 yields 1164 versus 1089, also -6.4%. Cinebench R23 multi-core continues the pattern: 19640 versus 18377, a -6.4% delta. Single-core R23 is 2772 versus 2594, with the same -6.4% margin. The consistency of these deltas across all six tests is striking, it suggests a uniform performance gap driven by clock speed rather than workload-specific factors.

The Threadripper's wins are not marginal; the 1263-point difference in R23 multi-core represents a 6.9% improvement over the EPYC's score. In single-core R23, the 178-point gap is a 6.9% advantage as well. The R15 and R20 deltas are identical at -6.4% for multi-core and -6.5% for single-core, indicating that the relative performance gap does not change with the benchmark version. The EPYC's 16 cores and 32 threads cannot overcome the Threadripper's 3.5 GHz base clock, which is 67% higher than the EPYC's 2.1 GHz base. The boost clocks tell a similar story: 4.0 GHz versus 2.7 GHz, a 48% advantage.

Specification Differences

The two processors differ in several key specification fields. The EPYC 7281 has 16 cores and 32 threads, while the Threadripper 1920X has 12 cores and 24 threads. Base clocks are 2.10 GHz for the EPYC and 3.50 GHz for the Threadripper; boost clocks are 2.70 GHz versus 4.00 GHz. The EPYC has a TDP of 170 watts, while the Threadripper is rated at 180 watts. Sockets differ: the EPYC uses AMD Socket SP3, and the Threadripper uses AMD Socket SP3r2. The codenames are Naples and Zen (Whitehaven), respectively, with generations listed as "EPYC (Zen (Naples))" and "Ryzen Threadripper (Zen (Whitehaven))". Transistor counts are 4,800 million for the EPYC and 9,600 million for the Threadripper, with die sizes of 213 mm² and 2x 213 mm². Memory buses are eight-channel for the EPYC and quad-channel for the Threadripper, yielding bandwidths of 170.6 GB/s and 85.3 GB/s. ECC memory support is present on the EPYC but absent on the Threadripper. The market segments are Server/Workstation for the EPYC and Desktop for the Threadripper. The Threadripper has a launch MSRP of $799 and a part number of YD192XA8UC9AE; the EPYC has neither field listed.