AMD EPYC 7413 vs AMD EPYC 9135 Comparison

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7413 has 24 cores and 48 threads, while the AMD EPYC 9135 has 16 cores and 32 threads. Despite the core deficit, the EPYC 9135 wins 14 of the 17 head-to-head benchmark comparisons.

Q: What is the biggest performance gap between the two?

A: The largest delta is in PassMark single-thread performance, where the AMD EPYC 9135 scores 3672 against 2400 for the EPYC 7413, a 53% advantage. This reflects the newer Zen 5 architecture's per-core efficiency.

Q: Where does the AMD EPYC 7413 fight back?

A: The EPYC 7413 wins in PassMark data encryption (48492 vs 40295, a 16.9% lead), PassMark find prime numbers (397 vs 292, a 26.4% lead), and PassMark integer math (215629 vs 202962, a 5.9% lead). These wins are tied to its higher core count and larger shared L3 cache.

Q: How do their average benchmark scores compare?

A: The EPYC 9135 has an average benchmark score of 82980, while the EPYC 7413 sits at 80041. The EPYC 9135 ranks in the 96th percentile among all CPUs, and the EPYC 7413 ranks in the 95th percentile.

Q: What memory technologies do they support?

A: The EPYC 9135 supports DDR5 memory over a twelve-channel bus with 576.0 GB/s of bandwidth. The EPYC 7413 supports DDR4 over an eight-channel bus with 204.8 GB/s of bandwidth. Both support ECC memory.

Q: What are their launch MSRPs?

A: The AMD EPYC 9135 has a launch MSRP of $1214. The AMD EPYC 7413 has a launch MSRP of $1825.

Architecture Differences

The AMD EPYC 9135 belongs to the EPYC 9005 series, built on the Zen 5 architecture with the codename Turin. It is fabricated on a 4 nm process at TSMC, with a transistor count of 16,630 million spread across two 70.6 mm² dies. The EPYC 7413 belongs to the EPYC 7003 series, using the older Zen 3 architecture with the codename Milan. It is built on a 7 nm process, also at TSMC, with 16,600 million transistors across four 81 mm² dies. The node shrink and die layout give the EPYC 9135 a significant efficiency advantage.

Cache hierarchies differ substantially. The EPYC 9135 provides 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The EPYC 7413 provides 64 KB of L1 per core, 512 KB of L2 per core, and a much larger 128 MB of shared L3. The larger L3 on the EPYC 7413 helps it in certain multi-threaded workloads, but the per-core L1 and L2 advantages on the EPYC 9135 boost single-thread responsiveness.

Memory support is a major generational divide. The EPYC 9135 uses DDR5 over a twelve-channel memory bus with 576.0 GB/s of bandwidth. The EPYC 7413 uses DDR4 over an eight-channel bus with 204.8 GB/s. That is nearly triple the theoretical memory bandwidth for the newer part. Both processors support ECC memory, so reliability features are consistent across generations.

Platform connectivity also changes. The EPYC 9135 uses AMD Socket SP5 and provides PCIe Gen 5 with 128 lanes (CPU only). The EPYC 7413 uses AMD Socket SP3 and provides PCIe Gen 4 with 128 lanes (CPU only). The socket change means the two processors are not drop-in compatible, and the newer platform brings faster I/O.

The EPYC 9135 has a base clock of 3.65 GHz and a boost clock of 4.30 GHz. The EPYC 7413 has a base clock of 2.65 GHz and a boost clock of 3.60 GHz. The EPYC 9135 draws 200 W TDP, while the EPYC 7413 draws 180 W TDP. The EPYC 9135 achieves higher clock speeds with only a modest TDP increase.

The EPYC 9135 launched on 2024-10-09, while the EPYC 7413 launched on 2021-03-14. Both remain in active production. The EPYC 9135 has a part number of 100-000001150, and the EPYC 7413 has a part number of 100-000000323100-100000323WOF. Neither processor has an unlocked multiplier.

Head-to-Head Benchmarks

In Cinebench tests, the EPYC 9135 sweeps all six comparisons with a consistent 14.2% lead. In Cinebench R15 multi-core, it scores 4952 against 4338. In R15 single-core, it scores 699 against 612. In R20 multi-core, the margin is 20637 to 18078, and in R20 single-core it is 2913 to 2551. In R23 multi-core, the EPYC 9135 posts 49136 against 43044, and in R23 single-core it posts 6936 against 6076. The uniform delta across both single and multi-core tests indicates that Zen 5's architectural improvements deliver a broad performance uplift independent of thread count.

PassMark multi-thread performance favors the EPYC 9135 by 12.9%, with a score of 57170 versus 50641. PassMark physics also goes to the EPYC 9135, 5477 against 4708, a 16.3% margin. PassMark floating point math goes to the EPYC 9135, 126679 versus 118881, a 6.6% advantage. PassMark extended instructions goes to the EPYC 9135, 55822 versus 45696, a 22.2% lead. PassMark random string sorting goes to the EPYC 9135, 90064 versus 81134, an 11% lead. PassMark data compression goes to the EPYC 9135 by a narrower 3.3%, 739277 versus 715616.

The single-thread story is stark. In PassMark single thread, the EPYC 9135 scores 3672 versus 2400 for the EPYC 7413, a 53% advantage. This is the largest single delta in the comparison and explains the EPYC 9135's dominance in latency-sensitive workloads. The EPYC 7413 cannot keep pace in any single-core metric.

The EPYC 7413 claims three wins, all in workloads that exploit its additional cores and larger L3 cache. PassMark data encryption goes to the EPYC 7413, 48492 versus 40295, a 16.9% lead. PassMark find prime numbers goes to the EPYC 7413, 397 versus 292, a 26.4% lead. PassMark integer math goes to the EPYC 7413, 215629 versus 202962, a 5.9% lead. These wins show that the older chip still has strengths in specific computational patterns, particularly those that scale with core count and cache capacity.

Overall, the EPYC 9135 wins 14 of the 17 head-to-head tests. The EPYC 7413 wins 3. The average benchmark score reinforces this: 82980 for the EPYC 9135 versus 80041 for the EPYC 7413, a difference of roughly 3.7% in aggregate. The EPYC 9135's nearest rivals include the AMD EPYC 4584PX at 83090 (-0.1%), the Intel Core Ultra 9 285K at 83807 (-1%), and the Intel Core Ultra 9 290K Plus at 84003 (-1.2%). The EPYC 7413's nearest rivals include the Intel Core Ultra 9 290HX Plus at 79574 (+0.6%), the Intel Xeon w5-2565X at 80671 (-0.8%), and the Intel Core i9-14900KF at 79371 (+0.8%).

The Verdict

The data points clearly toward the AMD EPYC 9135 for most server and workstation roles. It wins the majority of benchmarks, delivers a 53% single-thread advantage, offers triple the memory bandwidth, and does so on a newer 4 nm process. The consistent 14.2% lead across all Cinebench tests suggests that Zen 5's IPC gains translate directly into real-world rendering and simulation performance. For databases, virtualization hosts, or any workload that rewards high single-thread throughput and fast memory, the EPYC 9135 is the stronger choice.

The AMD EPYC 7413 remains relevant for narrowly defined workloads. Its wins in data encryption, prime number finding, and integer math indicate that its 24 cores and 128 MB of shared L3 cache can still outperform the newer chip in certain parallel integer tasks. For environments where those specific workloads dominate and where the older SP3 platform is already in place, the EPYC 7413 offers a viable path. Its 180 W TDP is also slightly lower than the EPYC 9135's 200 W TDP, which may matter in power-constrained racks.

The percentile rankings are close, with the EPYC 9135 at the 96th percentile and the EPYC 7413 at the 95th. The average benchmark scores differ by only about 3.7%, which means the EPYC 9135 is not a generational blowout in aggregate throughput. However, the distribution of wins matters. The EPYC 9135 wins in the broad categories of multi-thread, physics, floating point math, extended instructions, and compression, while the EPYC 7413 wins only in specialized integer and encryption paths.

The launch MSRP of $1214 for the EPYC 9135 versus $1825 for the EPYC 7413 further separates the two. The newer processor offers higher performance in most tests at a lower launch price. The EPYC 7413 does retain a cache capacity advantage with 128 MB of shared L3 versus 64 MB, but that advantage only manifests in the handful of tests it wins.

For new deployments, the EPYC 9135 is the default recommendation based on the recorded data. For existing SP3 platforms that need a drop-in upgrade with strong integer and encryption throughput, the EPYC 7413 still has a role. The decision rests on whether the workload resembles the 14 tests won by the EPYC 9135 or the 3 tests won by the EPYC 7413.

Specification Differences

The two processors differ in nearly every core specification. The EPYC 9135 has 16 cores and 32 threads, while the EPYC 7413 has 24 cores and 48 threads. The EPYC 9135 runs at a base clock of 3.65 GHz and a boost clock of 4.30 GHz. The EPYC 7413 runs at a base clock of 2.65 GHz and a boost clock of 3.60 GHz. TDP is 200 W for the EPYC 9135 and 180 W for the EPYC 7413.

The process nodes differ: 4 nm for the EPYC 9135 versus 7 nm for the EPYC 7413. The EPYC 9135 uses two 70.6 mm² dies, while the EPYC 7413 uses four 81 mm² dies. Transistor counts are nearly identical at 16,630 million for the EPYC 9135 and 16,600 million for the EPYC 7413.

Cache configurations differ. The EPYC 9135 has 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3. The EPYC 7413 has 64 KB of L1 per core, 512 KB of L2 per core, and 128 MB of shared L3.

Memory support differs completely. The EPYC 9135 supports DDR5 over a twelve-channel bus with 576.0 GB/s of bandwidth. The EPYC 7413 supports DDR4 over an eight-channel bus with 204.8 GB/s of bandwidth. Both support ECC memory.

The sockets differ. The EPYC 9135 uses AMD Socket SP5, while the EPYC 7413 uses AMD Socket SP3. PCIe support differs: the EPYC 9135 provides Gen 5 with 128 lanes (CPU only), and the EPYC 7413 provides Gen 4 with 128 lanes (CPU only). Neither has integrated graphics.

Release dates differ, with the EPYC 9135 launching on 2024-10-09 and the EPYC 7413 launching on 2021-03-14. The launch MSRP is $1214 for the EPYC 9135 and $1825 for the EPYC 7413. Part numbers are 100-000001150 for the EPYC 9135 and 100-000000323100-100000323WOF for the EPYC 7413. Both are in active production and neither has an unlocked multiplier.