AMD Ryzen 9 PRO 7945 vs AMD Ryzen Threadripper 3970X Comparison

Head-to-Head Benchmarks

The benchmark data presents an unusually one-sided picture. Across all six comparable Cinebench tests, the AMD Ryzen Threadripper 3970X wins outright. The Ryzen 9 PRO 7945 does not record a single victory in the head-to-head comparison, with the database logging 6 wins for the Threadripper and 0 for the Ryzen 9 PRO.

The margins are remarkably consistent. In Cinebench R15 multi-core, the Threadripper scores 5405 against the Ryzen 9 PRO's 3996, a delta of -26.1%. The single-core R15 test tells the same story: 762 for the Threadripper versus 564 for the Ryzen 9 PRO, again a -26% gap. This pattern repeats across every generation of the Cinebench suite.

Cinebench R20 multi-core shows the Threadripper at 22524, while the Ryzen 9 PRO manages 16654. The delta remains -26.1%. Single-core R20 follows with 3179 against 2351, a -26% difference. The consistency of these percentages suggests a fundamental performance advantage that scales uniformly across both single-threaded and multi-threaded workloads.

Cinebench R23 reinforces the trend. The Threadripper posts 53630 in multi-core, while the Ryzen 9 PRO reaches 39653. That is a -26.1% delta. In single-core, the Threadripper hits 7571, and the Ryzen 9 PRO scores 5598, a -26.1% gap. The uniformity of these deltas, hovering almost exactly at 26% across six tests, indicates a stable architectural efficiency difference rather than workload-specific quirks.

The Ryzen 9 PRO's average benchmark score sits at 11469, placing it in the 67th percentile of all CPUs. The Threadripper's average score is 10841, placing it in the 66th percentile. Despite losing every head-to-head Cinebench test, the Ryzen 9 PRO actually holds a slightly higher average score and percentile ranking. This paradox stems from the fact that the database averages a broader set of benchmarks for the Threadripper, including Geekbench and 3DMark results where the Ryzen 9 PRO has no recorded data.

The nearest rival data for the Ryzen 9 PRO shows it trading blows with server-class silicon. It trails the Intel Xeon Gold 6342 by -0.9%, leads the AMD EPYC 73F3 by 1.2%, leads the AMD EPYC 7402 by 1.4%, and leads the Intel Core i5-1145G7 by 1.7%. The Threadripper's nearest rivals include the Intel Core i7-6700 at -2.1%, the AMD EPYC 9224 at -2.5%, the Intel Core i7-4790 at 2.7%, and the AMD EPYC 7D12 at 2.8%. Both processors sit in a similar competitive band relative to their respective peer groups.

FAQ

Q: Which processor wins in Cinebench R23 multi-core?

A: The AMD Ryzen Threadripper 3970X wins decisively, scoring 53630 against the Ryzen 9 PRO 7945's 39653. The delta is -26.1% in favor of the Threadripper.

Q: How do the single-core scores compare?

A: The Threadripper leads in every single-core test as well. In Cinebench R23 single-core, it scores 7571 versus 5598 for the Ryzen 9 PRO. The single-core deltas are consistently around -26% across R15, R20, and R23.

Q: What is the average benchmark score for each processor?

A: The Ryzen 9 PRO 7945 has an average benchmark score of 11469, while the Threadripper 3970X has an average score of 10841. The Ryzen 9 PRO ranks in the 67th percentile of all CPUs, and the Threadripper ranks in the 66th percentile.

Q: Why does the Ryzen 9 PRO have a higher average score despite losing all head-to-head tests?

A: The average score includes a broader benchmark set. The Threadripper has 3DMark and Geekbench results in the database, which pull its average down. The Ryzen 9 PRO only has Cinebench scores recorded, which are lower in absolute terms but still position it slightly higher in the percentile ranking.

Q: Which processor has more cores and threads?

A: The Threadripper 3970X has 32 cores and 64 threads. The Ryzen 9 PRO 7945 has 12 cores and 24 threads. The Threadripper's core advantage is directly reflected in its multi-core Cinebench wins.

Q: How do the nearest rivals compare for each processor?

A: The Ryzen 9 PRO's closest rival is the Intel Xeon Gold 6342, which leads it by -0.9%. The Threadripper's closest rival is the Intel Core i7-6700, which leads it by -2.1%. Both processors hold their own against their respective competition.

The Verdict

The data points to a clear choice for users prioritizing raw multi-threaded performance: the AMD Ryzen Threadripper 3970X. It wins all six head-to-head Cinebench tests with a consistent 26% margin. For rendering, video encoding, or any heavily threaded workload, the Threadripper's 32 cores and 64 threads deliver measurably higher scores across every Cinebench generation.

The Ryzen 9 PRO 7945, despite losing every direct comparison, still holds a slightly better average benchmark score (11469 versus 10841) and a marginally higher percentile ranking (67th versus 66th). This suggests that in the broader benchmark ecosystem, the Ryzen 9 PRO is not far behind on a per-thread basis, but the database's head-to-head tests show the Threadripper's core count overwhelming the newer architecture.

Users who need single-core responsiveness will find the Threadripper ahead there too, based on the recorded deltas. The single-core Cinebench R23 score of 7571 for the Threadripper versus 5598 for the Ryzen 9 PRO is a 26% advantage, which contradicts any assumption that the newer Zen 4 architecture would close the gap in lightly threaded tasks. The data simply does not support that expectation.

The Threadripper 3970X is the correct pick for workloads that scale with cores. The Ryzen 9 PRO 7945 remains a solid server or workstation processor with a higher average score, but the head-to-head results are unambiguous: the Threadripper dominates in every measured Cinebench test.

Specification Differences

The two processors differ in nearly every major specification category. The Ryzen 9 PRO 7945 uses 12 cores and 24 threads, while the Threadripper 3970X uses 32 cores and 64 threads. Both share a base clock of 3.70 GHz, but the boost clocks differ: 5.40 GHz for the Ryzen 9 PRO versus 4.50 GHz for the Threadripper.

Thermal design power differs dramatically. The Ryzen 9 PRO is rated at 65 W, while the Threadripper consumes 280 W. The sockets are incompatible: the Ryzen 9 PRO uses AMD Socket AM5, and the Threadripper uses AMD Socket TRX4.

Memory support diverges completely. The Ryzen 9 PRO supports DDR5 memory with dual-channel configuration and 83.2 GB/s bandwidth. The Threadripper supports DDR4 memory with quad-channel configuration and 102.4 GB/s bandwidth. ECC memory is supported on the Ryzen 9 PRO but not on the Threadripper.

The PCIe interface also differs. The Ryzen 9 PRO has Gen 5 with 24 lanes (CPU only), while the Threadripper has Gen 4 without a specified lane count in the database. The Ryzen 9 PRO includes integrated Radeon Graphics, while the Threadripper has no integrated graphics.

The multiplier is locked on the Ryzen 9 PRO and unlocked on the Threadripper. Release dates are far apart: June 12, 2023 for the Ryzen 9 PRO and November 24, 2019 for the Threadripper. The Threadripper has a launch MSRP of $1999, while the Ryzen 9 PRO has no recorded launch MSRP.

Architecture Differences

The architectural gap is significant. The Ryzen 9 PRO 7945 is built on Zen 4 architecture with the codename Raphael, part of the 7000 series. The Threadripper 3970X uses Zen 2 architecture with the codename Castle Peak, part of the 3000 series. The process nodes differ: 5 nm for the Ryzen 9 PRO, 7 nm for the Threadripper, both fabricated by TSMC.

Transistor counts and die sizes reflect the generational leap. The Ryzen 9 PRO packs 13,140 million transistors across a 2x 71 mm² die configuration. The Threadripper uses 15,200 million transistors across a 4x 74 mm² die configuration. The Threadripper's larger transistor count and multi-die layout support its higher core count.

Cache configurations differ notably. Both have 64 KB of L1 cache per core. The L2 cache is 1 MB per core on the Ryzen 9 PRO and 512 KB per core on the Threadripper. The L3 cache favors the Threadripper at 128 MB shared, versus 64 MB shared on the Ryzen 9 PRO. No 3D V-Cache is present on either processor.

The Ryzen 9 PRO's memory architecture is newer, with DDR5 support and a dual-channel bus. The Threadripper relies on DDR4 with a quad-channel bus. The Threadripper's higher memory bandwidth of 102.4 GB/s exceeds the Ryzen 9 PRO's 83.2 GB/s, despite the older memory standard, due to the additional channels.

The market segments differ: the Ryzen 9 PRO is classified as Server/Workstation, while the Threadripper is classified as Desktop. Both are currently marked as Active in production status. The part numbers are distinct, with the Ryzen 9 PRO at 100-000000598 and the Threadripper at 100-000000011100-100000011WOF.

The architecture differences explain the benchmark outcomes. The Zen 4 process shrink and higher boost clock on the Ryzen 9 PRO do not overcome the Threadripper's 20-core advantage in multi-threaded tests. The Threadripper's larger L3 cache and quad-channel memory also contribute to its sustained performance in rendering workloads, as evidenced by the consistent 26% lead in Cinebench results.