AMD EPYC 7763 vs AMD Ryzen Threadripper PRO 3995WX Comparison

The AMD Ryzen Threadripper PRO 3995WX and AMD EPYC 7763 are both 64-core, 128-thread behemoths built on TSMC's 7 nm process, yet they target different corners of the high-performance computing market. The data reveals a split personality: the EPYC 7763 dominates most compute-heavy rendering and math workloads, while the Threadripper PRO 3995WX strikes back decisively in specific data-processing and single-threaded tasks. With an average benchmark score of 171,748, the Threadripper trails the EPYC's 179,916 by 4.5%, a gap that is consistent with the EPYC's 4.8% advantage in its own rival list. Both sit at the 99th percentile of all CPUs, but the benchmark breakdown shows that raw core count is only half the story.

Head-to-Head Benchmarks

The EPYC 7763’s victory is built on consistent, if narrow, margins across the entire Cinebench suite. In Cinebench R15 multicore, the EPYC scores 7247 against the Threadripper's 7190, a 0.8% edge; the same 0.8% delta repeats in R20 multicore (30198 vs 29961) and R23 multicore (71902 vs 71338). Single-core results follow the same pattern: the EPYC leads by 0.9% in R15 (1023 vs 1014) and by 0.8% in both R20 (4263 vs 4229) and R23 (10150 vs 10071). These are tight margins, but they are uniform—the EPYC’s Zen 3 architecture extracts slightly more work per clock across every Cinebench iteration.

The PassMark suite tells a more varied story. The EPYC wins the marquee multithread test by 0.8% (84591 vs 83928), but its biggest single-workload victory is in physics, where it posts 7708 against the Threadripper's 5498—a massive 28.7% advantage. The EPYC also leads in integer math (516920 vs 490116, +5.2%) and floating-point math (287919 vs 277715, +3.5%). Its most dramatic win is in prime-number finding, where it scores 668 versus 566, a 15.3% gap that suggests a substantial advantage in integer-heavy iterative workloads.

The Threadripper PRO 3995WX, however, owns the data-plane. Its most lopsided win is in data compression, where it scores 1,841,292 against the EPYC's 1,628,973—a 13% improvement. It also leads in extended instructions (106423 vs 98294, +8.3%), random string sorting (188574 vs 182676, +3.2%), and data encryption (124433 vs 121001, +2.8%). Notably, the Threadripper wins the PassMark single-thread test outright, scoring 2595 versus 2518, a 3.1% margin that flips the Cinebench single-core narrative. Across the 17 head-to-head benchmarks, the EPYC takes 11 wins to the Threadripper's 6, but the Threadripper's wins include some of the largest deltas in either direction.

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD EPYC 7763 leads with an average benchmark score of 179,916, compared to the AMD Ryzen Threadripper PRO 3995WX's 171,748, a difference of 8,168 points. The EPYC's rival list shows a 4.8% delta over the Threadripper, while the Threadripper's list shows a −4.5% delta against the EPYC.

Q: How do the two compare in single-core performance?

A: The results are mixed. The EPYC 7763 wins all three Cinebench single-core tests (R15: 1023 vs 1014, R20: 4263 vs 4229, R23: 10150 vs 10071, all at 0.8–0.9% deltas). However, the Threadripper PRO 3995WX wins the PassMark single-thread test by 3.1%, scoring 2595 versus the EPYC's 2518.

Q: Which chip is faster in Cinebench R23 multicore?

A: The EPYC 7763 edges out the Threadripper PRO 3995WX with a score of 71,902 versus 71,338, a 0.8% advantage. This mirrors the R15 and R20 multicore results, where the EPYC also leads by 0.8%.

Q: What is the largest performance gap in the head-to-head results?

A: The largest gap is in PassMark physics, where the EPYC 7763 scores 7,708 versus the Threadripper's 5,498, a 28.7% advantage for the EPYC. The largest win for the Threadripper is in data compression, where it leads by 13%.

Q: Do both processors support the same memory configuration?

A: Yes, both support DDR4 memory with an eight-channel bus and 204.8 GB/s of memory bandwidth, and both support ECC memory. They also both provide Gen 4 PCIe with 128 lanes from the CPU.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen Threadripper PRO 3995WX has a higher boost clock at 4.20 GHz, compared to the AMD EPYC 7763's 3.50 GHz. The Threadripper also has a higher base clock at 2.70 GHz versus 2.45 GHz.

Where Each One Wins

The AMD EPYC 7763 is the clear choice for compute-heavy rendering and scientific simulation. Its physics score of 7,708 is an outlier in the best possible way, and its 15.3% lead in prime-number finding points to strengths in cryptographic and number-theoretic workloads. For floating-point and integer math, the EPYC holds 3.5% and 5.2% advantages respectively, which translates directly to finite-element analysis, computational fluid dynamics, and financial modeling. The Cinebench multicore sweeps—albeit by sub-1% margins—confirm that the EPYC is the more consistent multi-threaded rendering engine, making it the safer bet for 3D artists and video producers who rely on those specific benchmarks.

The AMD Ryzen Threadripper PRO 3995WX, on the other hand, is the data manipulation specialist. Its 13% lead in data compression is a decisive win for database administrators, backup software, and any pipeline that moves large datasets through lossless compression algorithms. The 8.3% advantage in extended instructions and 3.2% lead in random string sorting further cement its position for ETL (extract, transform, load) workloads and log processing. Its 3.1% win in single-threaded PassMark suggests it may feel snappier in lightly threaded desktop tasks, despite losing the Cinebench single-core tests. For encryption tasks, the Threadripper’s 2.8% edge could matter in always-on VPN or storage-encryption servers.

Specification Differences

The physical platforms diverge immediately: the Threadripper PRO 3995WX uses the AMD Socket WRX8, while the EPYC 7763 uses the AMD Socket SP3. This is not a minor footnote—it dictates motherboard choice, memory topology, and chassis design. The clock speeds differ as well: the Threadripper runs at 2.70 GHz base and 4.20 GHz boost, while the EPYC runs at 2.45 GHz base and 3.50 GHz boost. Both parts share a 280 W TDP, which puts them in the same power envelope, but the higher clocks on the Threadripper suggest that its silicon is tuned for bursty, latency-sensitive tasks.

The EPYC 7763 is a denser chip in terms of transistor count, packing 33,200 million transistors across eight 81 mm² dies, whereas the Threadripper uses 30,400 million transistors across eight 74 mm² dies. Both are fabricated by TSMC on a 7 nm process. The cache hierarchies are identical in size—64 KB L1 per core, 512 KB L2 per core, and 256 MB L3—but the EPYC's L3 is described as "shared" while the Threadripper's is not, hinting at different on-die interconnect topologies. The market segments differ: the Threadripper is classified as Desktop, while the EPYC is Server/Workstation. Their release dates are also distinct, with the Threadripper launching on 2020-07-13 and the EPYC on 2021-03-14.

Architecture Differences

The generational gap is the root cause of the performance divergence. The Threadripper PRO 3995WX is built on Zen 2 (codename Castle Peak), while the EPYC 7763 uses Zen 3 (codename Milan). This is a full architecture generation apart, and the EPYC’s 0.8% Cinebench wins across the board reflect Zen 3’s improved instruction-per-clock (IPC) efficiency. The Zen 3 architecture reworks the core-to-cache topology, which is why the EPYC's 256 MB L3 is listed as "shared" rather than the Threadripper's per-core allocation—a change that reduces latency when cores need to access data cached by neighboring cores.

The transistor and die-size differences underscore the architectural shift: the EPYC packs 2,800 million more transistors into a slightly larger die area (81 mm² vs 74 mm² per die), which is consistent with the added logic for Zen 3's unified cache design. Both chips are monolithic multi-die modules with eight chiplets, but the EPYC’s higher transistor count at the same 7 nm node suggests a more complex interconnect fabric. While both support PCIe Gen 4 with 128 lanes and eight-channel DDR4, the EPYC’s server pedigree likely includes additional RAS (reliability, availability, serviceability) features inherent to the SP3 platform, though the data does not specify them. The Threadripper’s higher boost clock—4.20 GHz versus 3.50 GHz—is a direct consequence of its desktop-oriented design, which prioritizes single-thread burst performance over the sustained all-core throughput that servers demand.