Intel Core i9-10920X vs Intel Xeon W-2191B Comparison

The Intel Xeon W-2191B and the Intel Core i9-10920X are both high-core-count processors built for the Intel Socket 2066 platform, but they target different workloads. The recorded data shows a clear split: the Xeon W-2191B dominates in Cinebench rendering workloads across all tested versions, while the Core i9-10920X takes a decisive lead in Geekbench tests. The Xeon wins six of the eight head-to-head benchmark comparisons, yet the i9 counters with a substantial margin in the Geekbench suite, indicating that the choice between these two depends heavily on the application being run.

Where Each One Wins

The Intel Xeon W-2191B is the clear winner in Cinebench tests, which stress sustained multi-threaded rendering performance. In Cinebench R15 multicore, the Xeon scores 2407 against the i9's 2203, a 9.3% advantage. That same 9.3% gap repeats in Cinebench R20 multicore (10032 vs 9181), Cinebench R23 multicore (23887 vs 21861), and even in the single-core variants of each Cinebench version. The Xeon leads by 9% in Cinebench R15 single-core (339 vs 311) and by 9.3% in both R20 single-core (1416 vs 1296) and R23 single-core (3372 vs 3086). This consistency across every Cinebench iteration suggests the Xeon's 18-core, 36-thread configuration provides a structural advantage in this rendering workload, and that advantage scales proportionally from single-core to multi-core tests.

The Intel Core i9-10920X wins decisively in Geekbench. In Geekbench single-core, the i9 scores 1673 against the Xeon's 1182, a 29.3% lead. In Geekbench multicore, the i9 scores 11165 against 9614, a 13.9% advantage. These are the two largest margins in the entire head-to-head comparison, and they flip the overall narrative. While the Xeon takes six wins, the i9's Geekbench victories are by far the most lopsided results in the dataset. The i9 also carries a higher base clock of 3.50 GHz and boost clock of 4.80 GHz compared to the Xeon's 2.30 GHz base and 4.30 GHz boost, which aligns with its stronger performance in latency-sensitive and lightly threaded workloads.

The overall average benchmark score favors the Xeon. The Xeon W-2191B records an average benchmark score of 6531, while the i9-10920X records 6347. Both processors sit at the 62nd percentile among all CPUs in the database, meaning they occupy the same tier of overall performance despite their divergent workload-specific results. The Xeon's nearest rivals in the database include the Intel Core i9-7960X at an average score of 6533, essentially identical, and the Intel Xeon D-2796TE at 6510, just 0.3% behind. The i9-10920X sits near the AMD EPYC 7551 at 6391 (0.7% behind) and the AMD Ryzen Threadripper 1950X at 6231 (1.9% ahead).

Architecture Differences

The two processors share the same 14 nm process node from Intel, but they diverge in architecture generation. The Xeon W-2191B uses the Skylake architecture with the Skylake-W codename, while the Core i9-10920X uses the Cascade Lake architecture with the Cascade Lake-X codename. Both are built on the Intel Socket 2066 platform, and both support DDR4 memory with a quad-channel memory bus.

Core and thread counts differ significantly. The Xeon W-2191B packs 18 cores and 36 threads, while the Core i9-10920X has 12 cores and 24 threads. This 50% core advantage for the Xeon explains its dominance in Cinebench, which scales well with additional physical cores. The i9 compensates with higher clock speeds: 3.50 GHz base and 4.80 GHz boost versus the Xeon's 2.30 GHz base and 4.30 GHz boost. The i9 also has an unlocked multiplier, while the Xeon is locked.

Cache configurations also differ. Both processors use 64 KB of L1 cache per core and 1 MB of L2 cache per core, but the shared L3 cache differs: the Xeon W-2191B has 24.75 MB shared L3, while the Core i9-10920X has 19.25 MB shared L3. The Xeon's larger L3 cache aligns with its higher core count and server-oriented design.

Memory bandwidth is another distinguishing factor. The Xeon W-2191B records 85.3 GB/s of memory bandwidth, while the i9-10920X has no bandwidth figure recorded in the database. The Xeon also supports ECC memory, a critical feature for workstation and server reliability, while the i9 does not. PCIe support differs as well: the Xeon provides Gen 3 with 48 lanes from the CPU, while the i9 lists only Gen 3 without a lane count.

Market positioning reinforces these differences. The Xeon W-2191B is classified as a Server/Workstation processor and is end-of-life, released on 2017-12-20. The Core i9-10920X is classified as a Desktop processor and remains active in production, released on 2019-10-18. The Xeon's die size is recorded at 484 mm², while the i9 has no die size entry in the database.

Head-to-Head Benchmarks

The head-to-head data reveals a consistent pattern in Cinebench and a striking reversal in Geekbench. Starting with Cinebench R15 multicore, the Xeon W-2191B scores 2407 against the i9's 2203, a 9.3% lead. The single-core variant shows the same shape: the Xeon scores 339 against the i9's 311, a 9% lead. Moving to Cinebench R20, the Xeon's multicore score of 10032 beats the i9's 9181 by 9.3%, and its single-core score of 1416 beats the i9's 1296 by 9.3%. Cinebench R23 follows the identical pattern: multicore 23887 vs 21861 (9.3% lead) and single-core 3372 vs 3086 (9.3% lead).

The consistency of that 9.3% margin across four of the six Cinebench comparisons is notable. It suggests the Xeon's advantage in this workload is not an artifact of any single test version but a structural property of the processor design. The single-core Cinebench results are particularly interesting because the i9 has a significantly higher boost clock of 4.80 GHz compared to the Xeon's 4.30 GHz, yet the Xeon still wins. This indicates that the Xeon's per-core performance in this specific rendering workload exceeds what the i9's higher clock speed can overcome.

Geekbench tells the opposite story. The i9-10920X scores 1673 in Geekbench single-core, a 29.3% lead over the Xeon's 1182. In Geekbench multicore, the i9 scores 11165 against 9614, a 13.9% lead. These margins dwarf the Xeon's Cinebench advantages. The i9's Geekbench single-core victory makes sense given its 4.80 GHz boost clock and newer Cascade Lake architecture, but the multicore win is more surprising because the Xeon has 50% more cores. The Geekbench multicore test appears to favor the i9's higher clock speeds and architectural refinements over raw core count.

The overall scorecard shows the Xeon W-2191B winning six benchmarks and the Core i9-10920X winning two. However, the magnitude of the i9's two wins (13.9% and 29.3%) is larger than the magnitude of any individual Xeon win (max 9.3%). A user whose primary applications resemble Geekbench workloads would likely prefer the i9, while a user running Cinebench-style rendering would prefer the Xeon.

FAQ

Q: Which processor is faster in Cinebench R23 multicore?

A: The Intel Xeon W-2191B scores 23887 in Cinebench R23 multicore, while the Intel Core i9-10920X scores 21861. The Xeon leads by 9.3%.

Q: Does the Core i9-10920X win any benchmark?

A: Yes. The Core i9-10920X wins both Geekbench tests. It scores 11165 in Geekbench multicore versus the Xeon's 9614, a 13.9% lead, and 1673 in Geekbench single-core versus the Xeon's 1182, a 29.3% lead.

Q: What are the core and thread counts for each processor?

A: The Intel Xeon W-2191B has 18 cores and 36 threads. The Intel Core i9-10920X has 12 cores and 24 threads.

Q: Does the Xeon W-2191B support ECC memory?

A: Yes, the Xeon W-2191B supports ECC memory. The Core i9-10920X does not support ECC memory.

Q: What is the average benchmark score for each processor?

A: The Xeon W-2191B records an average benchmark score of 6531, while the Core i9-10920X records 6347. Both sit at the 62nd percentile among all CPUs in the database.

Q: Do both processors use the same socket?

A: Yes, both the Intel Xeon W-2191B and the Intel Core i9-10920X use the Intel Socket 2066.

The Verdict

The data supports a clear verdict for specific use cases. The Intel Xeon W-2191B is the better choice for Cinebench-style rendering workloads, where it leads in all six Cinebench comparisons by margins of 9% to 9.3%. Its 18 cores, 36 threads, and 24.75 MB of shared L3 cache provide the resources needed for heavily threaded rendering tasks. The Xeon also offers ECC memory support and 85.3 GB/s of memory bandwidth, features that matter for workstation reliability and data-intensive operations. Its higher average benchmark score of 6531 versus the i9's 6347 reinforces its overall performance advantage.

The Intel Core i9-10920X is the better choice for Geekbench-style workloads, where it leads by 29.3% in single-core and 13.9% in multicore. Its higher base clock of 3.50 GHz and boost clock of 4.80 GHz, combined with its unlocked multiplier, make it the stronger option for applications that respond to clock speed and per-core performance. The i9 is also the more modern processor, released on 2019-10-18 with the Cascade Lake architecture, and remains active in production.

For a workstation user prioritizing rendering throughput and ECC reliability, the Xeon W-2191B is the data-backed choice. For a desktop user prioritizing Geekbench performance, overclocking headroom, and higher clock speeds, the Core i9-10920X is the stronger pick. The 62nd percentile ranking for both processors in the database indicates they occupy similar tiers of overall capability, but the workload-specific results show they are not interchangeable.

Specification Differences

The following specifications differ between the two processors:

• Cores: Xeon W-2191B has 18 cores; Core i9-10920X has 12 cores.
• Threads: Xeon W-2191B has 36 threads; Core i9-10920X has 24 threads.
• Base Clock: Xeon W-2191B runs at 2.30 GHz; Core i9-10920X runs at 3.50 GHz.
• Boost Clock: Xeon W-2191B boosts to 4.30 GHz; Core i9-10920X boosts to 4.80 GHz.
• TDP: Xeon W-2191B has a TDP of 140; Core i9-10920X has a TDP of 165.
• Architecture: Xeon W-2191B uses Skylake; Core i9-10920X uses Cascade Lake.
• Codename: Xeon W-2191B is Skylake-W; Core i9-10920X is Cascade Lake-X.
• Generation: Xeon W-2191B is Xeon W (Skylake-W); Core i9-10920X is Core i9 (X-Series 10th Gen).
• Die Size: Xeon W-2191B measures 484 mm²; Core i9-10920X has no recorded die size.
• L3 Cache: Xeon W-2191B has 24.75 MB shared; Core i9-10920X has 19.25 MB shared.
• Memory Bandwidth: Xeon W-2191B records 85.3 GB/s; Core i9-10920X has no recorded bandwidth.
• ECC Memory: Xeon W-2191B supports ECC; Core i9-10920X does not.
• PCIe: Xeon W-2191B provides Gen 3 with 48 lanes from the CPU; Core i9-10920X lists Gen 3 without a lane count.
• Market Segment: Xeon W-2191B is Server/Workstation; Core i9-10920X is Desktop.
• Production Status: Xeon W-2191B is end-of-life; Core i9-10920X is active.
• Release Date: Xeon W-2191B released on 2017-12-20; Core i9-10920X released on 2019-10-18.
• Multiplier Unlocked: Xeon W-2191B is locked; Core i9-10920X is unlocked.
• Part Number: Xeon W-2191B is SR3RW; Core i9-10920X has no recorded part number.
• Series: Xeon W-2191B has no series; Core i9-10920X is Core 10th Gen.