Intel Xeon 6730P vs Intel Xeon w9-3575X Comparison

The Intel Xeon w9-3575X and the Intel Xeon 6730P sit in adjacent territory in the workstation and server space, but the recorded data shows a clear pattern: the older Sapphire Rapids workstation part wins nearly every benchmark, while the newer Granite Rapids server chip counters with a memory subsystem that runs at a different level. One chip sweeps 15 of 16 head-to-head tests. The other carries almost triple the shared L3 cache and a third more memory bandwidth. Here is how the numbers break down.

Head-to-Head Benchmarks

The Intel Xeon w9-3575X dominates the raw score sheet. In Cinebench R23 multi-core it posts 70837 against 62996 for the Xeon 6730P, a 12.4 percent gap, and the same margin repeats across the Cinebench family: R20 multi-core is 29751 versus 26458 (12.4 percent) and R15 multi-core is 7140 versus 6349 (12.5 percent). Single-core results mirror that spread, with the w9-3575X at 1008 in R15 against 896, and 4200 versus 3735 in R20.

The largest wins for the w9-3575X come where its 44 cores and higher boost clocks bite hardest. PassMark single-thread is the biggest gap on the board: 3672 versus 2995, a 22.6 percent lead that reflects its 4.80 GHz boost against the 6730P's 3.80 GHz. Floating point math goes the same way, 273398 to 226838 (20.5 percent), and random string sorting lands at 134723 versus 113919 (18.3 percent). Extended instructions is another comfortable win, 109843 to 96204 (14.2 percent), while encryption (62258 versus 55964, 11.2 percent), data compression (1219584 versus 1138470, 7.1 percent), and the PassMark multithread composite (83338 versus 74113, 12.4 percent) all favor the workstation chip.

The Intel Xeon 6730P has exactly one win, but it is a striking one. PassMark physics scores 8606 against 6836, a 20.6 percent victory for the server part, the only test in the set where its Granite Rapids design pulls decisively ahead. Elsewhere the two are nearly inseparable: integer math is 298224 versus 290740 (2.6 percent apart) and prime number finding is a statistical tie at 687 versus 686.

Where Each One Wins

The w9-3575X is the pick for anything that scales with cores and clock speed. Rendering is the obvious case: the consistent 12.4 to 12.5 percent Cinebench margins across three generations of the benchmark indicate the lead is structural, not test-specific. Workloads that lean on a single fast thread benefit even more, given the 22.6 percent single-thread advantage, which matters for CAD, DCC applications, and simulation front-ends that still serialize key stages. Floating point heavy compute, at 20.5 percent ahead, and string sorting, at 18.3 percent ahead, round out a profile suited to scientific code and data processing on the desktop workstation side.

The Xeon 6730P's case rests on its platform rather than its benchmark sweep. Its 409.6 GB/s of memory bandwidth against 307.2 GB/s for the w9-3575X, a 33 percent advantage, makes it the better fit for memory-bound server workloads: large databases, virtualization, and analytics sets that stream through RAM rather than crunch in registers. The physics result (20.6 percent ahead) also suggests some simulation-style workloads favor it despite the lower overall scores. Its 250 W TDP against 340 W for the w9-3575X makes it the lighter-running chip of the two.

Context from the database reinforces where each sits. The w9-3575X's average benchmark score of 144323 places it in the 98th percentile against all CPUs, essentially dead even with the AMD EPYC 7643P (144824 average, 0.3 percent apart) and within a hair of the AMD Ryzen 9 PRO 9965X3D and Intel Xeon 6732P. The 6730P's average of 124756 puts it in the 97th percentile, trading blows with the AMD Ryzen Threadripper PRO 5975WX (124171, 0.5 percent) and sitting 3.6 percent clear of the AMD EPYC 9384X.

Architecture Differences

These are two different Intel design philosophies on two different nodes. The w9-3575X is Sapphire Rapids, built on Intel's 10 nm process as a 4-die package totalling 4x 477 mm² of silicon. It carries 44 cores and 88 threads, with a 2.20 GHz base and 4.80 GHz boost, and it is multiplier unlocked, an unusual trait for this class that opens tuning headroom. Cache per core is 80 KB of L1 and 2 MB of L2, with 97.5 MB of L3.

The Xeon 6730P is Granite Rapids on Intel's 5 nm node, a 2-die package of 2x 598 mm². It has fewer cores at 32 with 64 threads, a higher 2.50 GHz base but a lower 3.80 GHz boost, and a locked multiplier. Its per-core L1 is larger at 112 KB, L2 matches at 2 MB, but the standout is 288 MB of shared L3, nearly triple the w9-3575X's figure, a classic server-oriented configuration for virtualization and large working sets.

Platform connectivity also diverges. The w9-3575X uses Socket 4677 and offers 112 Gen 5 PCIe lanes from the CPU, against 88 lanes on the 6730P's Socket 4710. Both support eight-channel DDR5 with ECC. Memory bandwidth differs sharply: 409.6 GB/s on the 6730P versus 307.2 GB/s on the w9-3575X, courtesy of faster supported memory on the newer platform. Neither chip has integrated graphics. Both are active production parts; the w9-3575X launched on 2024-08-23 with a launch MSRP of $3789, while the 6730P arrived 2025-02-23 at a launch MSRP of $3726.

FAQ

Q: Which CPU is faster overall?

A: The Xeon w9-3575X wins 15 of 16 head-to-head benchmarks, including a 12.4 percent lead in Cinebench R23 multi-core and a 22.6 percent lead in PassMark single-thread. Its average benchmark score of 144323 also tops the 6730P's 124756.

Q: Does the Xeon 6730P win anything?

A: Yes. It takes PassMark physics with 8606 against 6836, a 20.6 percent win, and it offers substantially more memory bandwidth at 409.6 GB/s versus 307.2 GB/s.

Q: Which CPU has more cores and higher clocks?

A: The w9-3575X has 44 cores and 88 threads with a 4.80 GHz boost. The 6730P has 32 cores and 64 threads with a 3.80 GHz boost, though its 2.50 GHz base is higher than the w9-3575X's 2.20 GHz.

Q: Which platform has more PCIe lanes?

A: The w9-3575X, with 112 Gen 5 lanes from the CPU on Socket 4677, versus 88 Gen 5 lanes on the 6730P's Socket 4710.

Q: Can either CPU be overclocked?

A: The w9-3575X has an unlocked multiplier. The 6730P does not.

Q: How do they compare against other CPUs in the database?

A: The w9-3575X sits in the 98th percentile, within 0.3 percent of the AMD EPYC 7643P. The 6730P sits in the 97th percentile, about 0.5 percent ahead of the AMD Ryzen Threadripper PRO 5975WX and 3.6 percent ahead of the EPYC 9384X.

The Verdict

The benchmark data makes the workstation choice straightforward: the Xeon w9-3575X is the faster processor in nearly every measured workload, ahead by roughly 12 percent in threaded rendering and over 20 percent in single-thread, floating point, and string sorting tasks. Users building rendering, engineering, or compute-focused workstation systems should take it, and the unlocked multiplier adds flexibility the 6730P lacks. Its higher TDP of 340 W is the tradeoff.

The Xeon 6730P earns its place on different grounds. Its 33 percent memory bandwidth advantage, nearly triple shared L3, and lower 250 W TDP suit it to server deployments where feeding many concurrent workloads matters more than peak per-thread speed. The physics result shows it can win where its platform strengths apply. Both are launch-priced closely ($3789 versus $3726 at launch), so the decision comes down to workload: pure performance points to the w9-3575X, memory-heavy server duty points to the 6730P.