Intel Xeon w5-3535X vs Intel Xeon w7-2575X Comparison

Head-to-Head Benchmarks

The benchmark results paint a clear split between these two Sapphire Rapids workstation processors. The Intel Xeon w5-3535X dominates in Cinebench rendering workloads, while the Intel Xeon w7-2575X counters with decisive wins in several PassMark compute tests. Across the 17 recorded head-to-head comparisons, the w5-3535X takes 11 wins, while the w7-2575X secures 6, but the margin of victory matters more than the raw count.

Starting with the Cinebench suite, the w5-3535X wins every single test, and the consistency is striking. In Cinebench R15 multicore, the w5-3535X scores 4634 against 4463 for the w7-2575X, a 3.7% advantage. The single-core gap mirrors it exactly: 654 versus 630, again 3.7%. Cinebench R20 multicore shows 19309 against 18596, and R20 single-core shows 2725 against 2625. Cinebench R23 multicore delivers 45974 versus 44277, and R23 single-core delivers 6490 versus 6250. In every Cinebench test, the w5-3535X holds the same 3.7% lead, suggesting a consistent architectural efficiency advantage in these workloads despite having fewer cores.

PassMark multithreaded performance follows the same direction. The w5-3535X scores 54088, while the w7-2575X scores 52091, a 3.7% gap. PassMark single-thread performance goes to the w5-3535X by a larger margin: 3602 versus 3300, an 8.4% difference. The same single-thread score appears twice in the database under two test names, confirming the result.

The most dramatic single benchmark in the entire comparison is PassMark physics. The w5-3535X posts 3547, while the w7-2575X manages only 2222. That is a 37.4% deficit for the w7-2575X, the largest delta in either direction across all tests. This is not a marginal difference; it is a massive gap that suggests the w5-3535X handles physics simulation workloads with far greater efficiency.

The w7-2575X does not go down quietly. In PassMark floating point math, it scores 171427 against 145924, a 17.5% advantage. Integer math shows 219924 versus 186158, an 18.1% lead, the largest win for the w7-2575X. Data compression goes to the w7-2575X at 789817 versus 731388, an 8% margin. Data encryption shows 39295 versus 36784, a 6.8% win. Extended instructions land at 62498 versus 60183, a 3.8% edge. Random string sorting rounds out the w7-2575X wins at 77986 versus 73618, a 5.9% margin.

The one test that breaks the pattern is PassMark find prime numbers. Here the w5-3535X wins 269 to 218, a 19% advantage. This is notable because prime number finding is typically sensitive to integer execution and memory latency, and the w5-3535X clearly handles it far better.

Where Each One Wins

The w5-3535X is the clear choice for rendering and general multithreaded throughput. Every Cinebench test, from R15 through R23, goes its way by 3.7%. The PassMark multithread score confirms this trend. For users running CPU-based rendering, video encoding, or any workload that scales across threads with high single-thread sensitivity, the w5-3535X holds the edge.

The w5-3535X also dominates in physics simulation. The 37.4% lead in PassMark physics is the largest margin in the entire comparison. This suggests the w5-3535X is better suited for simulation engines, collision detection, and related physics-heavy tasks. Its 19% lead in prime number finding reinforces the picture of a CPU that excels at integer-heavy, latency-sensitive workloads.

The w7-2575X wins where raw compute throughput matters most. Its 18.1% lead in integer math and 17.5% lead in floating point math make it the stronger processor for number-crunching applications, scientific computing, and financial modeling. Data compression at 8% ahead and data encryption at 6.8% ahead show that the w7-2575X handles data transformation tasks more efficiently.

For extended instruction workloads, the w7-2575X leads by 3.8%, which covers AVX and other SIMD-heavy code paths. Random string sorting goes to the w7-2575X by 5.9%. The overall picture is that the w7-2575X excels in compute-heavy, parallel math workloads, while the w5-3535X wins in rendering, physics, and general multithreaded tasks.

FAQ

Q: Which CPU wins in Cinebench R23 multicore?

A: The Intel Xeon w5-3535X scores 45974 in Cinebench R23 multicore, while the Intel Xeon w7-2575X scores 44277. The w5-3535X leads by 3.7%.

Q: How large is the physics performance gap between the two?

A: The w5-3535X scores 3547 in PassMark physics, while the w7-2575X scores 2222. The w5-3535X leads by 37.4%, the largest margin in any benchmark between the two processors.

Q: Where does the w7-2575X have its biggest advantage?

A: The w7-2575X leads by 18.1% in PassMark integer math, scoring 219924 versus 186158 for the w5-3535X. It also leads by 17.5% in floating point math.

Q: Do both CPUs share the same single-thread performance?

A: No. The w5-3535X scores 3602 in PassMark single-thread tests, while the w7-2575X scores 3300. The w5-3535X leads by 8.4%.

Q: Which CPU has more cores?

A: The w7-2575X has 22 cores and 44 threads, while the w5-3535X has 20 cores and 40 threads. Despite having fewer cores, the w5-3535X wins most multithreaded benchmarks.

Q: How do the average benchmark scores compare?

A: The w7-2575X has an average benchmark score of 88172, while the w5-3535X has an average of 81115. The w7-2575X sits at the 96th percentile among all CPUs, and the w5-3535X also sits at the 96th percentile.

Specification Differences

The two processors differ in several core specifications. The w7-2575X has 22 cores and 44 threads, while the w5-3535X has 20 cores and 40 threads. Base clock speeds differ slightly: the w7-2575X runs at 3.00 GHz, while the w5-3535X runs at 2.90 GHz. Both boost to 4.80 GHz.

Thermal design power differs substantially. The w7-2575X is rated at 250 W, while the w5-3535X is rated at 300 W. This means the w5-3535X draws more power despite having fewer cores, which may reflect its higher sustained performance in certain workloads.

Cache configurations differ. The w7-2575X has 45 MB of L3 cache, while the w5-3535X has 52.5 MB. Both have 80 KB of L1 cache per core and 2 MB of L2 cache per core.

Memory support differs significantly. The w7-2575X uses a quad-channel memory bus with 153.6 GB/s of bandwidth. The w5-3535X uses an eight-channel memory bus with 307.2 GB/s of bandwidth, exactly double. Both support DDR5 and ECC memory.

PCIe lane counts also differ. The w7-2575X provides 64 PCIe Gen 5 lanes, while the w5-3535X provides 112 PCIe Gen 5 lanes. Both use the Intel Socket 4677 and have no integrated graphics.

The die size is only listed for the w5-3535X at 4x 477 mm². The part numbers differ: SRN4D for the w7-2575X and SRN76 for the w5-3535X. Both have a launch MSRP of $1689, both are unlocked for overclocking, and both were released on the same date.

Architecture Differences

Both processors are built on Intel's Sapphire Rapids architecture, produced on a 10 nm process at Intel's foundry. They share the same generation, the same socket, and the same manufacturer. The core design is identical in terms of per-core cache: 80 KB of L1 and 2 MB of L2 per core.

The architectural differences come down to how the chips are configured. The w5-3535X has a larger die footprint at 4x 477 mm², which is not listed for the w7-2575X. The w5-3535X also carries more L3 cache at 52.5 MB versus 45 MB, a 7.5 MB difference that likely contributes to its performance in cache-sensitive workloads.

Memory architecture diverges sharply. The w5-3535X doubles the memory channels to eight channels and doubles the peak bandwidth to 307.2 GB/s. The w7-2575X sticks with a quad-channel setup at 153.6 GB/s. PCIe connectivity follows the same pattern, with the w5-3535X offering 112 lanes against 64 for the w7-2575X.

The higher TDP of 300 W on the w5-3535X, despite fewer cores, is another architectural indicator. Combined with the larger L3 cache and doubled memory bandwidth, the data suggests the w5-3535X is a more aggressively configured chip in several subsystems, even though the w7-2575X carries more cores.

Both processors support ECC memory, both lack integrated graphics, and both are classified as Server/Workstation segments. Both are active in production and both carry unlocked multipliers.

The Verdict

The choice between these two processors depends entirely on workload priorities. The data does not point to a single winner.

For rendering, physics simulation, and general multithreaded throughput, the Intel Xeon w5-3535X is the stronger pick. It wins every Cinebench test by 3.7%, takes PassMark multithread by 3.7%, and crushes the w7-2575X in physics by 37.4%. Its 8.4% lead in single-thread performance and 19% lead in prime number finding make it the better all-rounder for mixed workloads that combine rendering with simulation or latency-sensitive integer tasks.

For pure compute density, the Intel Xeon w7-2575X is the answer. Its 18.1% lead in integer math and 17.5% lead in floating point math make it the superior choice for scientific computing, financial analysis, and heavy number crunching. Data compression at 8% ahead and encryption at 6.8% ahead add to its appeal for data-heavy workloads. The w7-2575X also has two more cores and 44 threads versus 40, which helps in workloads that scale linearly with core count.

The w5-3535X compensates for its two fewer cores with a larger L3 cache of 52.5 MB, double the memory bandwidth at 307.2 GB/s, and 112 PCIe lanes. The w7-2575X counters with a lower 250 W TDP and more cores. Both sit at the 96th percentile among all CPUs, both cost the same launch MSRP of $1689.

Users who prioritize rendering should choose the w5-3535X without hesitation. Users who prioritize scientific math workloads should pick the w7-2575X. Users building systems around massive memory bandwidth needs should lean toward the w5-3535X for its eight-channel memory configuration. The verdict is workload-dependent, and the margins are decisive in both directions.