Intel Core i9-10900K vs Intel Xeon 6337P Comparison

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Xeon 6337P has an average benchmark score of 28333, while the Intel Core i9-10900K scores 27872. The Xeon sits in the 80th percentile of all CPUs, while the Core i9 is in the 79th percentile.

Q: How does the Xeon 6337P compare to its nearest rivals?

A: The Xeon 6337P is essentially tied with the Intel Core i9-11950H (0% delta) and AMD Ryzen 7 7735U (-0.1%). It trails the AMD Ryzen 5 PRO 8640HS by 0.5%. The data shows it sits in a very competitive cluster.

Q: Does the Core i9-10900K support ECC memory?

A: No. The Core i9-10900K does not support ECC memory. The Xeon 6337P does support ECC memory, which is a key feature for server and workstation reliability.

Q: What memory types does each processor support?

A: The Xeon 6337P supports both DDR4 and DDR5 memory in a dual-channel configuration. The Core i9-10900K supports only DDR4, also in a dual-channel configuration.

Q: Which processor has the larger single-thread score advantage?

A: The Xeon 6337P leads the Core i9-10900K by 31.8% in the PassMark single-thread test (4104 vs 3113). This is the largest single-test delta between the two.

Q: What is the production status of these two chips?

A: The Xeon 6337P is listed as Active, while the Core i9-10900K is End-of-life. The Core i9 was released on 2020-04-29, while the Xeon came later on 2025-02-23.

Architecture Differences

The Intel Xeon 6337P is built on the Raptor Lake architecture, specifically the Raptor Lake-R refresh, and belongs to the Xeon 6 generation. It uses a 10 nm process node from Intel with a die size of 163 mm². The Intel Core i9-10900K, in contrast, is based on the older Comet Lake architecture from the Core 10th Gen series, built on a 14 nm process node with a larger die size of 206 mm².

The core topology differs substantially. The Xeon 6337P has 6 cores and 12 threads, while the Core i9-10900K has 10 cores and 20 threads. The Xeon uses larger per-core caches: 80 KB L1 per core and 1.25 MB L2 per core, compared to 64 KB L1 and 256 KB L2 per core on the Core i9. The Core i9 has a larger shared L3 cache at 20 MB versus 18 MB on the Xeon.

Memory architecture also divides them. The Xeon supports both DDR4 and DDR5, while the Core i9 is limited to DDR4. The Core i9's memory bandwidth is rated at 46.9 GB/s, a figure that is not provided for the Xeon. The Xeon supports ECC memory, the Core i9 does not.

PCIe capabilities differ by generation. The Xeon 6337P offers PCIe Gen 5 with 16 lanes (CPU only), while the Core i9-10900K provides PCIe Gen 3 with 16 lanes (CPU only). The Xeon has no integrated graphics, while the Core i9 includes UHD Graphics 630.

Power and socket configurations also separate them. The Xeon has a TDP of 80 W and uses Intel Socket 1700. The Core i9 has a TDP of 125 W and uses Intel Socket 1200. The Xeon's multiplier is locked, while the Core i9 features an unlocked multiplier for overclocking.

Head-to-Head Benchmarks

The benchmark data shows an interesting split: the Core i9-10900K wins 11 of the 17 head-to-head comparisons, but the Xeon 6337P takes the more decisive victories in several workloads.

In Cinebench tests, the Core i9 holds a slight, consistent edge. In Cinebench R15 multicore, the Core i9 scores 1904 against 1893 for the Xeon, a difference of -0.6% from the Xeon's perspective. Single-core R15 shows the same narrow margin: 268 vs 267. Cinebench R20 multicore (7935 vs 7888) and single-core (1120 vs 1113) both show the Core i9 ahead by 0.6%. Cinebench R23 multicore (18895 vs 18783) and single-core (2667 vs 2651) follow the same pattern. The Xeon trails by 0.6% in every Cinebench metric.

The PassMark suite reveals the Xeon's strengths. The Xeon 6337P wins PassMark single-thread by 31.8% (4104 vs 3113), a significant lead that reflects its newer architecture. It also wins PassMark physics by 68% (1729 vs 1029). In data encryption, the Xeon is 61.7% ahead (12604 vs 7796). The Xeon also leads in find prime numbers by 71.4% (108 vs 63). In floating point math, the Xeon wins narrowly by 0.1% (53150 vs 53123).

The Core i9 takes the rest of the PassMark tests, often by wide margins. Data compression goes to the Core i9 by 36.8% (375336 vs 237373). Extended instructions see a 37.6% advantage for the Core i9 (24620 vs 15366). Random string sorting goes to the Core i9 by 43.7% (46389 vs 26135). Integer math is 15.3% faster on the Core i9 (85404 vs 72301). The multithread score shows the Core i9 ahead by 1.6% (22452 vs 22098).

Overall, the data shows the Xeon 6337P winning in single-threaded performance, physics, encryption, prime finding, and floating point, while the Core i9 dominates data compression, string sorting, extended instructions, integer math, and the Cinebench suite.

Specification Differences

The two processors differ across nearly every core specification. The Xeon 6337P offers 6 cores and 12 threads, while the Core i9-10900K provides 10 cores and 20 threads. Base clocks are close: 3.50 GHz for the Xeon, 3.70 GHz for the Core i9. Both boost to 5.30 GHz.

The TDP rating is lower for the Xeon at 80 W, compared to 125 W for the Core i9. The Xeon uses Intel Socket 1700, the Core i9 uses Intel Socket 1200. The Xeon is based on Raptor Lake and a 10 nm process, while the Core i9 uses Comet Lake on a 14 nm process. Their die sizes are 163 mm² vs 206 mm².

Cache layouts are different: the Xeon has 80 KB L1 per core, 1.25 MB L2 per core, and 18 MB shared L3. The Core i9 has 64 KB L1, 256 KB L2, and 20 MB shared L3. The Xeon supports DDR4 and DDR5 memory, the Core i9 only DDR4. The Xeon supports ECC memory, the Core i9 does not.

The Xeon offers PCIe Gen 5 with 16 lanes, while the Core i9 offers PCIe Gen 3 with 16 lanes. The Xeon lacks integrated graphics, the Core i9 includes UHD Graphics 630. The Xeon is a server/workstation part and is currently active, while the Core i9 is a desktop part that is end-of-life. The Xeon has a locked multiplier, the Core i9 is unlocked. The Xeon part number is SRPLU, the Core i9 is SRH91. The Xeon's launch MSRP is $375, while the Core i9's is $547.

Where Each One Wins

The Xeon 6337P is the clear winner for single-thread performance. Its 31.8% lead in PassMark single-thread, along with a 4104 score vs the Core i9's 3113, makes it the better choice for lightly threaded tasks. The data also shows the Xeon excels in physics simulation, with a 68% advantage (1729 vs 1029), making it stronger for physics-based workloads. Its 61.7% lead in data encryption (12604 vs 7796) indicates a strong advantage for security and crypto-heavy processes. The 71.4% lead in prime number finding (108 vs 63) further reinforces its math- and compute-intensive strengths. Its floating point score is also slightly higher, at 53150 vs 53123.

The Core i9-10900K is the workhorse for highly parallel, data-heavy workloads. Its 10 cores and 20 threads (vs 6 and 12) help it dominate data compression, where it wins by 36.8% (237373 vs 375336 from the Xeon's perspective). The Core i9 also leads in random string sorting (46389 vs 26135, a 43.7% delta) and extended instructions (24620 vs 15366, a 37.6% delta). For integer math, the Core i9 is 15.3% ahead (85404 vs 72301). The multithread score is also higher (22452 vs 22098), indicating a general multi-threaded advantage.

In Cinebench, the Core i9 wins all six tests, albeit by a slim 0.6% margin each. This makes it the better choice for pure multi-core render workloads, though the margin is small. For users with the Core i9's unlocked multiplier, overclocking could widen these margins.

The Xeon wins where the workload depends on single-thread speed, encryption, physics, or float-point operations. The Core i9 wins where the workload is heavily parallel, involves compression or sorting, or requires integer math. The Xeon's ECC support and DDR5 memory support make it suited for server and workstation roles, while the Core i9's desktop heritage and unlocked multiplier appeal to users who want overclocking headroom.