AMD EPYC 9845 vs AMD Ryzen Threadripper 9970X Comparison

The AMD EPYC 9845 and the AMD Ryzen Threadripper 9970X are two very different Zen 5 parts aimed at different segments. The EPYCLE 9845 is a 160-core server processor built for massive parallel workloads, while the Threadripper 9970X is a 32-core desktop enthusiast chip with high clocks. Benchmark data shows a clear split: the EPYCLE wins 9 of 11 head-to-head tests, but the Threadripper takes the only single-threaded victories. The following analysis uses recorded measurements to break down where each CPU excels, what separates their architectures, and who should buy which.

Head-to-Head Benchmarks

The head-to-head results are dominated by the EPYCLE 9845 in every multi-threaded category. The largest margin comes in integer math, where the EPYCLE scores 1,687,531 against the Threadripper’s 465,378, a delta of 262.6%. Encryption is nearly as lopsided: the EPYCLE posts 296,808 versus 86,765, a 242.1% advantage. Floating-point math shows a 215.9% lead (978,377 to 309,719), and physics follows at 187.2% (19,631 to 6,835). Random string sorting sees a 181.1% delta (538,060 vs. 191,445), and data compression is 166.2% higher (4,680,013 vs. 1,757,998). Extended instructions, which tests SIMD and vector processing, give the EPYCLE a 121.2% edge (314,798 vs. 142,342). Prime number detection is 104.1% better (1,255 vs. 615). Even the multithread test, which does not scale as heavily with core count, still shows a 42.4% win for the EPYCLE (152,985 vs. 107,399).

The Threadripper 9970X’s only wins come in the two single-thread tests: passmark_single_thread and passmark_singlethread. Both record identical scores of 4,530 for the Threadripper and 3,144 for the EPYCLE, a delta of -30.6% (the negative sign indicates the EPYCLE is behind). That is a substantial single-core advantage for the Threadripper, driven by its much higher base clock (4.00 GHz vs. 2.10 GHz) and boost clock (5.40 GHz vs. 3.70 GHz).

The overall average benchmark score reinforces this pattern. The EPYCLE 9845 averages 523,613, while the Threadripper 9970X averages 279,778. The EPYCLE sits at the 100th percentile of all CPUs in the database, while the Threadripper is at the 99th percentile. The EPYCLE’s nearest rivals are other EPYC parts: it is 3.5% ahead of the EPYC 9755, 22.9% ahead of the EPYC 9745, and 27.1% ahead of the Ryzen Threadripper PRO 9995WX. It trails the higher-core EPYC 9965 by 15.6%. The Threadripper’s nearest rivals are a mix of Xeon and EPYC models: it is 0.2% behind the Intel Xeon 6780E, 2.0% behind the AMD EPYC 9565, 2.2% behind the Intel Xeon 696X, and 2.5% behind the AMD EPYC 9555P.

Where Each One Wins

The EPYCLE 9845 is the clear choice for workloads that can use every available core and thread. Its 160 cores and 320 threads give it an overwhelming parallel advantage. The benchmark data shows it leads in integer math, floating-point math, data compression, encryption, extended instructions, prime number generation, physics simulation, and random string sorting. These are exactly the kinds of workloads that scale with core count: scientific computing, financial modeling, large-scale data processing, and heavy virtualization. The EPYCLE’s 320 MB of shared L3 cache and 576.0 GB/s of twelve-channel memory bandwidth further support these parallel tasks. The 42.4% lead in the multithread test, while smaller than some other margins, still reflects a meaningful edge when the entire processor is engaged.

The Threadripper 9970X wins in single-threaded performance. Its 4.00 GHz base and 5.40 GHz boost clock are the highest in this comparison, and the single-thread test shows a 30.6% advantage over the EPYCLE. This matters for software that relies on a few fast cores, such as lightly threaded applications, some content creation tools, and legacy code that does not parallelize well. The Threadripper also has a much smaller core count, but its higher clock speeds allow it to excel when per-core latency is the bottleneck. In the broader database, the Threadripper’s 99th percentile ranking confirms that it is still a high-end part, just not for the same scale of work as the EPYCLE.

Architecture Differences

The two processors share the same Zen 5 architecture from AMD, but they are built for different sockets and use different process nodes. The EPYCLE 9845 is part of the EPYC 9005 series, codename Turin, and is fabricated on a 3 nm process by TSMC. It has 160 cores and 320 threads, with a base clock of 2.10 GHz and a boost clock of 3.70 GHz. It uses the AMD Socket SP5 platform and is not multiplier-unlocked. Its cache hierarchy includes 80 KB of L1 per core, 1 MB of L2 per core, and a shared 320 MB of L3. Memory support is DDR5 over a twelve-channel bus, delivering 576.0 GB/s of bandwidth. It also provides Gen 5 PCIe with 128 lanes from the CPU. The EPYCLE is rated at 390 W TDP and is aimed at server and workstation segments. It launched on October 9, 2024, with a launch MSRP of $13,564.

The Threadripper 9970X, part of the 9000 series, uses the Shimada Peak codename and is fabricated on a 4 nm process by TSMC. It has 32 cores and 64 threads, with a base clock of 4.00 GHz and a boost clock of 5.40 GHz. It fits the AMD Socket sTR5 and is multiplier-unlocked, allowing overclocking. Its cache is 64 KB of L1 per core, 1 MB of L2 per core, and 128 MB of shared L3. Memory support is DDR5 over a quad-channel bus, giving 204.8 GB/s of bandwidth. PCIe is Gen 5 with 80 lanes. The Threadripper also has ECC memory support and an integrated GPU is not present. It is a desktop part with a TDP of 350 W. The Threadripper was released on July 29, 2025, with a launch MSRP of $2,499. Its transistor count is 33,260 million across four chiplets, each 70.6 mm².

The most striking differences are the core count and memory subsystem. The EPYCLE has five times the cores and threads of the Threadripper, and its L3 cache is 2.5 times larger. The memory bandwidth is also much higher: 576.0 GB/s vs. 204.8 GB/s, thanks to twelve channels instead of four. The EPYCLE also has 48 more PCIe lanes (128 vs. 80). On the other hand, the Threadripper has much higher clocks (4.00/5.40 vs. 2.10/3.70) and a newer release date. The EPYCLE uses a more advanced 3 nm process, while the Threadripper uses 4 nm, but the Threadripper’s higher clocks compensate for the slightly larger process node.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 9845 has 160 cores and 320 threads, while the AMD Ryzen Threadripper 9970X has 32 cores and 64 threads. That is a 5x difference in core count.

Q: Which processor offers higher memory bandwidth?

A: The EPYCLE 9845 has a twelve-channel memory bus with 576.0 GB/s, while the Threadripper 9970X has a quad-channel bus with 204.8 GB/s. The EPYCLE provides more than twice the bandwidth.

Q: Which processor has the higher single-threaded performance?

A: The Threadripper 9970X scores 4,530 in the Passmark single-thread test, while the EPYCLE 9845 scores 3,144. The Threadripper is 30.6% ahead in this metric.

Q: Which processor has the larger L3 cache?

A: The EPYCLE 9845 has 320 MB of shared L3 cache, while the Threadripper 9970X has 128 MB. The EPYCLE has 2.5 times more L3.

Q: Which processor has a higher boost clock?

A: The Threadripper 9970X boosts to 5.40 GHz, while the EPYCLE 9845 boosts to 3.70 GHz. The Threadripper’s boost is significantly higher.

Q: Which processor is more recent?

A: The Threadripper 9970X was released on July 29, 2025, while the EPYCLE 9845 was released on October 9, 2024. The Threadripper is newer by about nine months.

The Verdict

The AMD EPYCLE 9845 is the correct choice for anyone who needs massive multi-threaded throughput. Its 160-core configuration, 320 MB of L3, and 576.0 GB/s of memory bandwidth deliver the highest parallel performance in this comparison, as shown by the 9-2 win in head-to-head benchmarks and its 100th-percentile ranking. It is ideal for server workloads, data centers, scientific computing, and any application that can saturate a large number of cores. The EPYCLE’s nearest rival, the EPYCLE 9965, is 15.6% faster on average, but the 9845 still beats the EPYCLE 9755 by 3.5% and the Threadripper PRO 9995WX by 27.1%. For its intended server market, the EPYCLE is a high-end, active part with a launch MSRP of $13,564.

The AMD Ryzen Threadripper 9970X is the better fit for desktop users who value single-threaded speed and overclocking headroom. It wins the only two single-threaded benchmarks by 30.6% and has a higher base and boost clock. It also supports overclocking, something the EPYCLE does not. With a 99th-percentile ranking, it is still an extremely capable CPU, but it cannot match the EPYCLE’s raw core count. Its nearest rivals are a mix of Xeon and EPYC parts, and it trades narrowly with them: it is within 2.5% of the Intel Xeon 6780E, EPYC 9565, Xeon 696X, and EPYC 9555P. The Threadripper is a desktop part with a launch MSRP of $2,499. Choose the EPYCLE for server-scale parallel work; choose the Threadripper for single-threaded or lightly threaded desktop tasks.