Intel Xeon 6745P vs Intel Xeon w9-3595X Comparison
Intel Xeon 6745P
Xeon w9-3595X
PERFORMANCE BENCHMARKS
Analysis: Intel Xeon 6745P vs Intel Xeon w9-3595X
The Verdict
The benchmark data paints a clear picture: the Intel Xeon w9-3595X is the dominant performer in this matchup, winning 14 of 16 head-to-head tests. It leads by substantial margins in most workloads, particularly in floating-point math (41.7% ahead), integer math (40.5% ahead), and random string sorting (42.9% ahead). The Xeon 6745P is not without merit, however, as it wins the find prime numbers test by 14.8% and the physics test by 4.9%, while also posting a higher base clock of 3.10 GHz compared to 2.00 GHz on the w9-3595X.
For workloads that scale with core count and thread count, the w9-3595X is the clear choice. Its 60 cores and 120 threads dwarf the 6745P's 32 cores and 64 threads, and the recorded data confirms this advantage across Cinebench multi-core tests, where the w9-3595X leads by 17.8% consistently. The w9-3595X also holds a 99th percentile ranking among all CPUs versus 98th for the 6745P, and its average benchmark score of 209,881 is well ahead of the 6745P's 154,858.
The 6745P is the pick for users who prioritize energy efficiency or specific workloads like prime number finding and physics simulations. Its 300 W TDP is notably lower than the w9-3595X's 385 W, and it delivers a 7.8% single-thread advantage in PassMark single-thread testing. However, the w9-3595X still wins single-core Cinebench tests by 17.8%, so the single-thread story is mixed. For most high-throughput server and workstation tasks, the w9-3595X is the stronger option, provided the system can accommodate its higher power draw and larger physical footprint.
FAQ
Q: Which processor has more cores and threads?
A: The Intel Xeon w9-3595X has 60 cores and 120 threads, while the Intel Xeon 6745P has 32 cores and 64 threads.
Q: How do the two processors compare in multi-core Cinebench performance?
A: The w9-3595X leads by 17.8% in all three multi-core Cinebench tests (R15, R20, and R23). The scores are 8,497 vs 7,214 in R15, 35,407 vs 30,062 in R20, and 84,304 vs 71,578 in R23.
Q: Does the 6745P win any benchmark tests?
A: Yes, it wins two tests. It scores 681 versus 580 in PassMark find prime numbers, a 14.8% advantage, and 6,144 versus 5,842 in PassMark physics, a 4.9% advantage.
Q: What is the memory bandwidth difference?
A: The 6745P has a higher memory bandwidth of 409.6 GB/s, while the w9-3595X offers 307.2 GB/s. Both use eight-channel DDR5 memory.
Q: What are the cache configurations?
A: The w9-3595X has 80 KB L1 per core, 2 MB L2 per core, and 112.5 MB L3. The 6745P has 112 KB L1 per core, 2 MB L2 per core, and 336 MB of shared L3.
Q: Which processor has a higher boost clock?
A: The w9-3595X boosts to 4.80 GHz, while the 6745P boosts to 4.30 GHz. However, the 6745P has a higher base clock of 3.10 GHz versus 2.00 GHz.
Architecture Differences
The two processors come from different Intel server architectures, and the data reflects distinct design priorities. The w9-3595X is built on Sapphire Rapids, produced on Intel's 10 nm process, with a die size of 4x 477 mm². The 6745P uses the Granite Rapids architecture, fabricated on a 5 nm process, with a die size of 2x 598 mm². The smaller process node on the 6745P allows for a more compact physical design while still delivering a larger total L3 cache.
Cache hierarchies differ significantly. The w9-3595X features 80 KB of L1 cache per core and 2 MB of L2 per core, with a total of 112.5 MB of L3. The 6745P offers more L1 per core at 112 KB, the same 2 MB L2 per core, and a much larger 336 MB of shared L3. This larger L3 on the 6745P may benefit workloads with high data reuse, though the benchmark results show the w9-3595X still wins most memory-sensitive tests.
Memory support is similar in form but different in bandwidth. Both support DDR5 and use an eight-channel memory bus, but the 6745P delivers 409.6 GB/s versus 307.2 GB/s for the w9-3595X. Neither has integrated graphics, and both support ECC memory. PCIe lane counts also differ: the w9-3595X provides Gen 5 with 112 lanes, while the 6745P provides Gen 5 with 88 lanes. The w9-3595X has an unlocked multiplier, while the 6745P is locked.
Specification Differences
The recorded specifications show several clear differences between the two processors. The w9-3595X has 60 cores and 120 threads versus 32 cores and 64 threads on the 6745P. Base clocks favor the 6745P at 3.10 GHz versus 2.00 GHz, but boost clocks favor the w9-3595X at 4.80 GHz versus 4.30 GHz. The w9-3595X has a higher TDP of 385 W, while the 6745P draws 300 W.
Sockets are incompatible: the w9-3595X uses Intel Socket 4677, and the 6745P uses Intel Socket 4710. The w9-3595X was released on 2024-08-23, while the 6745P followed on 2025-02-23. Both are active production parts. The w9-3595X has a launch MSRP of $5889, and the 6745P has a launch MSRP of $5250. The w9-3595X carries part number SRN71, while the 6745P carries SRWPAQ7L9. Both target the server and workstation market segment.
Head-to-Head Benchmarks
The w9-3595X dominates the Cinebench suite with a consistent 17.8% advantage across all six tests. In Cinebench R15 multi-core, it scores 8,497 against 7,214. Single-core R15 shows 1,199 versus 1,018. R20 multi-core delivers 35,407 versus 30,062, and R20 single-core 4,998 versus 4,244. R23 multi-core reaches 84,304 versus 71,578. This uniformity suggests a broad architectural efficiency advantage in rendering workloads, not just a core count benefit.
PassMark results show even larger margins in several compute-heavy tests. Floating-point math favors the w9-3595X at 379,008 versus 267,438, a 41.7% lead. Integer math follows with 473,507 versus 336,926, a 40.5% margin. Random string sorting sees the w9-3595X at 190,745 versus 133,528, a 42.9% advantage. Data compression shows 1,831,962 versus 1,352,801, a 35.4% lead, and data encryption scores 92,249 versus 66,665, a 38.4% difference. Extended instructions also favor the w9-3595X with 142,785 versus 108,326, a 31.8% margin.
Multithreaded PassMark performance gives the w9-3595X an 18.2% edge with 99,576 versus 84,210. Single-thread PassMark results are closer, with the w9-3595X at 3,720 versus 3,450, a 7.8% lead. The 6745P claims two wins. In find prime numbers, it scores 681 versus 580, a 14.8% advantage. In physics, it scores 6,144 versus 5,842, a 4.9% edge.
The overall benchmark average reflects this split. The w9-3595X averages 209,881, which places it 3.7% behind the AMD EPYC 9455P and 7.7% ahead of the Intel Xeon 6741P in nearest rival comparisons. The 6745P averages 154,858, sitting 2.3% behind the Intel Xeon 676X and 3.4% behind the AMD EPYC 9355P. These positioning data confirm the w9-3595X is the higher-tier part in absolute performance, while the 6745P is closer to mid-range competitors. The wins the 6745P does secure are narrow but real, making it a viable choice for specific integer and physics workloads where its higher base clock and larger L3 cache appear to help.