AMD EPYC 9965 vs AMD Ryzen Threadripper 9970X Comparison

The Verdict

The data in the database splits this comparison into two very distinct usage profiles. The AMD EPYC 9965 is the overwhelming winner in 9 of the 11 recorded head-to-head benchmark categories, with margins that range from 49.5% to 313.9%. It is the clear choice for any workload that can consume 192 cores and 384 threads. The AMD Ryzen Threadripper 9970X wins only the two single-threaded tests, taking the passmark_single_thread test by a margin of 29.9% (4530 versus 3176). That result, combined with a boost clock of 5.40 GHz against the EPYC's 3.70 GHz, makes the Threadripper the better pick for lightly threaded tasks and for any user where raw per-core responsiveness matters more than aggregate throughput.

The EPYC 9965 sits in the 100th percentile of all CPUs in the database, with an average benchmark score of 620487. Its nearest rival is the AMD EPYC 9845, which trails by 18.5%. The Threadripper 9970X, at the 99th percentile, has an average score of 279778, and its closest competitor, the Intel Xeon 6780E, is effectively tied with a delta of -0.2%. This places the Threadripper in a completely different performance class. The choice is not about which is better in a general sense; it is about whether the task scales across many cores or depends on a single core's speed.

Architecture Differences

The two processors share the Zen 5 architecture, but they are built on different manufacturing nodes and for different market segments. The EPYC 9965 uses a 3 nm process at TSMC, while the Threadripper 9970X uses a 4 nm process from the same foundry. The EPYC's codename is Turin, and it belongs to the EPYC 9005 series. The Threadripper's codename is Shimada Peak, part of the 9000 series. The EPYC is a server part with 192 cores and 384 threads, while the Threadripper is a desktop part with 32 cores and 64 threads.

The cache hierarchy differs substantially. The EPYC 9965 provides 80 KB of L1 per core, 1 MB of L2 per core, and a shared 384 MB of L3 cache. The Threadripper 9970X provides 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of L3. The EPYC's L3 is three times larger. The Threadripper's die is composed of 4x 70.6 mm² chiplets with 33,260 million transistors; the EPYC's die size and transistor count are not recorded in the database.

Memory support also separates them. The EPYC uses a twelve-channel DDR5 memory bus with a recorded bandwidth of 576.0 GB/s. The Threadripper uses a quad-channel DDR5 bus with 204.8 GB/s. Both support ECC memory. PCIe connectivity differs as well: the EPYC provides Gen 5 with 128 lanes (CPU only), while the Threadripper provides Gen 5 with 80 lanes (CPU only). The EPYC's socket is AMD Socket SP5; the Threadripper uses AMD Socket sTR5. The EPYC has a locked multiplier, while the Threadripper is multiplier unlocked.

The launch MSRP for the EPYC 9965 is $14813. The launch MSRP for the Threadripper 9970X is $2499.

Head-to-Head Benchmarks

The EPYC 9965 dominates the multi-threaded and compute-heavy tests. In passmark_integer_math, the EPYC scores 1926069 against the Threadripper's 465378, a delta of 313.9%. This is the largest margin in the entire comparison. Floating point math shows a similar story: the EPYC scores 1153453, the Threadripper 309719, a 272.4% lead. Data encryption favors the EPYC at 348449 versus 86765, a 301.6% delta. Data compression shows the EPYC at 5679990 against 1757998, a 223.1% lead. Random string sorting goes to the EPYC by 230.7% (633030 versus 191445). Extended instructions favor the EPYC at 383298 versus 142342, a 169.3% delta. Physics tests show the EPYC at 18707 against the Threadripper's 6835, a 173.7% lead. Find prime numbers gives the EPYC 1208 versus 615, a 96.4% margin. The smallest multi-threaded win for the EPYC is in passmark_multithread, where it scores 160542 against 107399, a 49.5% lead.

The Threadripper 9970X wins the passmark_single_thread test with 4530 against the EPYC's 3176, a 29.9% advantage. The duplicate passmark_singlethread test shows the identical result. No other benchmark in the recorded head-to-head set favors the Threadripper. The EPYC wins 9 categories, the Threadripper wins 2.

The average benchmark score difference is also stark. The EPYC's 620487 is 121.9% higher than the Threadripper's 279778, based on the database's averages. The EPYC's nearest rival comparison shows it leading the AMD EPYC 9845 by 18.5% and the AMD EPYC 9755 by 22.7%. The Threadripper's nearest rival comparison shows it behind the AMD EPYC 9565 by 2%, the Intel Xeon 696X by 2.2%, and the AMD EPYC 9555P by 2.5%, while being statistically tied with the Intel Xeon 6780E at -0.2%.

FAQ

Q: Which processor has more cores?

A: The AMD EPYC 9965 has 192 cores and 384 threads. The AMD Ryzen Threadripper 9970X has 32 cores and 64 threads.

Q: Does the Threadripper 9970X win any benchmark against the EPYC 9965?

A: Yes, the Threadripper 9970X wins the passmark_single_thread test by 29.9%, scoring 4530 versus the EPYC's 3176. The duplicate passmark_singlethread test shows the same result.

Q: What is the memory bandwidth difference?

A: The EPYC 9965 has a twelve-channel DDR5 memory bus with a recorded bandwidth of 576.0 GB/s. The Threadripper 9970X has a quad-channel DDR5 bus with a bandwidth of 204.8 GB/s.

Q: How do the average benchmark scores compare?

A: The EPYC 9965 has an average benchmark score of 620487, placing it in the 100th percentile. The Threadripper 9970X has an average score of 279778, placing it in the 99th percentile.

Q: Which processor uses a smaller manufacturing process?

A: The EPYC 9965 uses a 3 nm process at TSMC. The Threadripper 9970X uses a 4 nm process at the same foundry.

Q: What are the PCIe lane counts?

A: The EPYC 9965 provides PCIe Gen 5 with 128 lanes (CPU only). The Threadripper 9970X provides PCIe Gen 5 with 80 lanes (CPU only).

Where Each One Wins

The EPYC 9965 wins every multi-threaded workload category recorded in the database. Its largest advantages are in integer math, encryption, and floating point math, where it leads by more than 270%. Data compression and random string sorting also show leads above 220%. The EPYC is the correct choice for database operations, scientific computing, virtualization, and any batch processing that can distribute work across its 192 cores. The 49.5% lead in passmark_multithread, while the smallest win for the EPYC, still represents a substantial throughput advantage over the Threadripper. The 384 MB of L3 cache and 576.0 GB/s of memory bandwidth support these workloads.

The Threadripper 9970X wins only in single-threaded performance. Its 4530 score versus 3176 gives it a 29.9% edge, which is meaningful for applications that depend on one core's speed. The higher boost clock of 5.40 GHz against 3.70 GHz explains this result. The Threadripper also has a lower TDP of 350 watts against the EPYC's 500 watts, which is relevant for sustained single-threaded operation in a desktop chassis. Its unlocked multiplier offers overclocking potential that the EPYC lacks, though the database does not record any overclocked benchmark results. For interactive workloads, code compilation with limited parallelism, or any software that does not scale beyond 32 cores, the Threadripper's per-core strength is the deciding factor.

Specification Differences

The two processors differ in nearly every core specification. The EPYC 9965 has 192 cores and 384 threads, while the Threadripper 9970X has 32 cores and 64 threads. The base clock is 2.25 GHz for the EPYC and 4.00 GHz for the Threadripper. The boost clock is 3.70 GHz for the EPYC and 5.40 GHz for the Threadripper. Thermal design power is 500 watts for the EPYC and 350 watts for the Threadripper.

The process node is 3 nm for the EPYC and 4 nm for the Threadripper, both from TSMC. The L1 cache is 80 KB per core for the EPYC and 64 KB per core for the Threadripper. L2 cache is 1 MB per core for both. L3 cache is 384 MB shared for the EPYC and 128 MB for the Threadripper.

Memory configuration differs: the EPYC uses twelve-channel DDR5, the Threadripper uses quad-channel DDR5. Memory bandwidth is 576.0 GB/s for the EPYC and 204.8 GB/s for the Threadripper. PCIe lanes are 128 Gen 5 (CPU only) for the EPYC and 80 Gen 5 (CPU only) for the Threadripper.

Sockets differ: the EPYC uses AMD Socket SP5, the Threadripper uses AMD Socket sTR5. The EPYC has a locked multiplier; the Threadripper is unlocked. The EPYC belongs to the EPYC 9005 series with the codename Turin, while the Threadripper belongs to the 9000 series with the codename Shimada Peak. The EPYC was released on 2024-10-09, the Threadripper on 2025-07-29. The EPYC's part number is 100-000000976, the Threadripper's is 100-000001594.