AMD EPYC 7502P vs AMD Ryzen Threadripper 3970X Comparison

FAQ

Q: Which processor scores higher in multi-threaded Cinebench tests?

A: The AMD Ryzen Threadripper 3970X wins all multi-core Cinebench tests by a consistent margin of 23.6%. In Cinebench R23 multi-core, it scores 53630 versus the EPYC 7502P's 43395, and in R20 multi-core the gap is 22524 against 18225.

Q: Is the single-core performance gap similar to the multi-core gap?

A: Yes, it is nearly identical. The Threadripper 3970X leads by 23.5% in Cinebench R15 single-core (762 vs 617) and by 23.6% in R20 and R23 single-core tests. The Geekbench single-core delta is larger at 71.7%, with scores of 1653 versus 963.

Q: Which CPU offers more memory bandwidth?

A: The AMD EPYC 7502P has double the memory bandwidth. It supports eight-channel DDR4 with a rated bandwidth of 204.8 GB/s, while the Threadripper 3970X uses quad-channel DDR4 with 102.4 GB/s.

Q: Do both processors have the same core and thread counts?

A: Yes, both have 32 cores and 64 threads. However, their base and boost clocks differ significantly: the Threadripper 3970X runs at 3.70 GHz base and 4.50 GHz boost, while the EPYC 7502P runs at 2.50 GHz base and 3.35 GHz boost.

Q: Which CPU supports ECC memory?

A: Only the AMD EPYC 7502P supports ECC memory. The Threadripper 3970X does not offer ECC support, which is a key differentiator for server reliability use cases.

Q: What is the Geekbench multi-core score difference between the two?

A: The Threadripper 3970X scores 20112 in Geekbench multi-core, which is 157.1% higher than the EPYC 7502P's 7822. This is by far the largest performance gap between the two in any benchmark.

The Verdict

The data paints a clear picture: the AMD Ryzen Threadripper 3970X is the outright winner in every benchmark recorded. It takes all 8 head-to-head tests, with no wins for the EPYC 7502P. The Threadripper's advantage ranges from a consistent 23.5-23.6% in Cinebench tests to a massive 157.1% in Geekbench multi-core.

For desktop and workstation workloads where raw single-thread and multi-thread performance matter most, the Threadripper 3970X is the clear choice. Its higher boost clock of 4.50 GHz versus 3.35 GHz directly explains its superior single-core results, and its 280W TDP reflects the extra performance headroom. The EPYC 7502P, with its 180W TDP and lower clocks, is positioned for different priorities.

The EPYC 7502P only makes sense if you specifically need server features. It supports ECC memory, which the Threadripper does not, and it offers double the memory bandwidth via eight-channel DDR4 at 204.8 GB/s versus 102.4 GB/s. If your workload is memory-bandwidth-bound and requires ECC reliability, the EPYC is the only option here. Otherwise, the Threadripper 3970X wins on every performance metric measured.

Head-to-Head Benchmarks

The Cinebench results are remarkably uniform. Across R15, R20, and R23, the Threadripper 3970X leads by exactly 23.6% in multi-core tests and by 23.5-23.6% in single-core tests. For example, in Cinebench R15 multi-core, the scores are 5405 versus 4374, and in R20 single-core they are 3179 versus 2572. This consistency suggests a fundamental clock-speed advantage rather than any workload-specific quirk.

The Geekbench results tell a different story. The multi-core gap explodes to 157.1%, with the Threadripper scoring 20112 versus the EPYC's 7822. This is far larger than the Cinebench delta, indicating that Geekbench's workload mix heavily favors the Threadripper's higher clocks and desktop-oriented design. Even in Geekbench single-core, the Threadripper leads by 71.7% (1653 vs 963), which is triple the Cinebench single-core gap.

The 3DMark results, available only for the Threadripper 3970X, show its scaling behavior: 724 single-thread, 1436 at 2 threads, 2777 at 4 threads, 5263 at 8 threads, 10154 at 16 threads, and 16588 at max threads. This data indicates strong threading efficiency, though no direct comparison is possible since the EPYC 7502P lacks 3DMark scores.

Specification Differences

The most obvious difference is in clock speeds. The Threadripper 3970X has a 3.70 GHz base clock and 4.50 GHz boost, while the EPYC 7502P operates at 2.50 GHz base and 3.35 GHz boost. This 1.15 GHz boost-clock advantage directly drives the Threadripper's benchmark superiority.

TDP also diverges: the Threadripper consumes 280W versus the EPYC's 180W. This 100W difference reflects the Threadripper's higher operating frequencies. The sockets differ as well — AMD Socket TRX4 for the Threadripper versus AMD Socket SP3 for the EPYC — meaning they are not interchangeable in any system.

Memory configuration is a major split. The Threadripper 3970X uses quad-channel DDR4 with 102.4 GB/s bandwidth and no ECC support. The EPYC 7502P uses eight-channel DDR4 with 204.8 GB/s bandwidth and ECC support. The EPYC's memory bandwidth is exactly double, which matters for server workloads that stream large datasets.

The Threadripper 3970X has an unlocked multiplier, while the EPYC 7502P is locked. The Threadripper also has a launch MSRP of $1999, while the EPYC has no listed launch MSRP. The Threadripper's part number is 100-000000011100-100000011WOF, and the EPYC's is 100-000000045. Release dates differ: the Threadripper launched on 2019-11-24, while the EPYC launched earlier on 2019-08-06.

Architecture Differences

Both CPUs are built on Zen 2 architecture and use a 7 nm process node from TSMC. However, the die layout and transistor counts differ substantially. The Threadripper 3970X, codenamed Castle Peak, has 15,200 million transistors across a 4x 74 mm² die configuration. The EPYC 7502P, codenamed Rome, has only 3,800 million transistors on a single 74 mm² die.

Cache organization also differs. The Threadripper 3970X has 64 KB of L1 cache per core and 512 KB of L2 per core, with 128 MB of L3 cache. The EPYC 7502P has 96 KB of L1 per core and 512 KB of L2 per core, also with 128 MB of L3 cache (marked as shared). The larger L1 per core on the EPYC is notable, though it does not translate to benchmark wins.

Both use PCIe Gen 4 and support DDR4 memory. Neither has integrated graphics. The Threadripper is classified as a Desktop part, while the EPYC is classified as Server/Workstation. Both are listed as Active production status and belong to AMD's 3000 series and EPYC 7002 series respectively.

Where Each One Wins

The Threadripper 3970X wins in every measurable performance category in the data. It dominates synthetic benchmarks across Cinebench R15, R20, and R23, and it crushes the EPYC in Geekbench. If your priority is raw compute performance for desktop applications, rendering, or content creation, the Threadripper is the only choice between these two.

The EPYC 7502P's advantages are not in benchmark scores but in platform features. It offers ECC memory support, which is essential for error-sensitive server workloads. It also provides double the memory bandwidth at 204.8 GB/s, which can be decisive for memory-bound server applications like large databases or virtualized environments. Its lower 180W TDP makes it more power-efficient per watt for sustained server operation.

In practical terms, the Threadripper 3970X suits a workstation builder who values single-thread responsiveness and high multi-thread throughput. The EPYC 7502P suits a server administrator who needs ECC reliability and maximum memory bandwidth, and who can accept lower benchmark scores in exchange for those enterprise features. The data shows 8 wins for the Threadripper and 0 for the EPYC in head-to-head tests, but the EPYC's feature set addresses a different set of requirements that benchmarks alone do not capture.