CPU Comparison

The Intel Xeon W-2191B and AMD Ryzen Threadripper 2950X represent two distinct philosophies for high-core-count computing from the same era, and the benchmark data reveals a clear split: the Threadripper 2950X dominates in Cinebench workloads across the board, while the Xeon W-2191B secures a decisive victory in Geekbench multi-core testing. With the Threadripper winning 7 of 8 head-to-head benchmarks and the Xeon taking only 1, the choice between them depends heavily on whether the target application scales with the Threadripper’s higher clock speeds or the Xeon’s larger core count and specific architectural optimizations.

Where Each One Wins

The AMD Ryzen Threadripper 2950X is the clear winner in rendering and compute workloads that are sensitive to raw throughput per thread. Across all three Cinebench versions (R15, R20, R23), the Threadripper wins both single-core and multi-core tests. The multi-core margins are consistent at 4.6% in favor of the Threadripper, while single-core margins range from 4.6% to 5.8%. This consistency suggests a fundamental clock-speed advantage: the Threadripper’s 3.50 GHz base and 4.40 GHz boost clocks outpace the Xeon’s 2.30 GHz base and 4.30 GHz boost. In Cinebench R23 multi-core, the Threadripper scores 25040 versus the Xeon’s 23887, a gap of 1153 points that directly reflects its higher sustained frequency.

The Intel Xeon W-2191B wins the Geekbench multi-core test decisively, scoring 9614 against the Threadripper’s 8469, a 13.5% advantage. This is the only benchmark where the Xeon prevails, but the magnitude is substantial. The Xeon’s 18 cores and 36 threads, compared to the Threadripper’s 16 cores and 32 threads, provide a two-core and four-thread advantage that Geekbench’s multi-core scaling exploits more effectively than Cinebench. The Xeon also has a larger L3 cache at 24.75 MB shared, though the Threadripper’s 32 MB total L3 is larger overall. For users running Geekbench-style workloads that favor many cores over high clocks, the Xeon is the better choice.

Single-core performance belongs to the Threadripper in every test. In Geekbench single-core, it scores 1255 versus the Xeon’s 1182, a 5.8% margin. This is consistent with its higher boost clock of 4.40 GHz versus 4.30 GHz. The Threadripper also wins Cinebench R23 single-core with 3535 versus 3372, a 4.6% margin. The data shows that for lightly-threaded tasks like legacy applications or per-thread compilation, the Threadripper’s frequency advantage translates directly into measurable wins.

Architecture Differences

The two processors come from fundamentally different design lineages. The Intel Xeon W-2191B is built on the Skylake architecture, specifically the Skylake-W codename, manufactured on a 14 nm process at Intel’s own foundry. The AMD Ryzen Threadripper 2950X uses the Zen+ architecture with the Colfax codename, fabricated on a 12 nm process at GlobalFoundries. This process difference is significant: the smaller 12 nm node allows the Threadripper to achieve higher clocks at a given power envelope, which explains its 3.50 GHz base and 4.40 GHz boost versus the Xeon’s 2.30 GHz base and 4.30 GHz boost.

The core configurations differ substantially. The Xeon packs 18 cores and 36 threads, while the Threadripper has 16 cores and 32 threads. The Xeon compensates for its lower clocks with more parallel hardware. Cache layouts also diverge: the Xeon uses 64 KB L1 and 1 MB L2 per core, with a 24.75 MB shared L3. The Threadripper uses 96 KB L1 and 512 KB L2 per core, with 32 MB of L3 total. The larger per-core L1 on the Threadripper (96 KB vs 64 KB) suggests better per-thread data locality, while the Xeon’s larger L2 (1 MB vs 512 KB) provides more fast storage per core.

Memory support is another differentiator. Both support DDR4 with quad-channel memory buses, but the Threadripper has higher theoretical bandwidth at 93.9 GB/s versus the Xeon’s 85.3 GB/s. The Xeon supports ECC memory, while the Threadripper does not, making the Xeon more suitable for mission-critical data integrity. PCIe lane counts also differ: the Threadripper offers 60 Gen 3 lanes from the CPU, while the Xeon provides 48. The Threadripper’s die is composed of two 213 mm² chiplets totaling 9,600 million transistors, whereas the Xeon uses a single 484 mm² die.

The Xeon W-2191B is classified as a Server/Workstation part and has reached end-of-life status. The Threadripper 2950X is a Desktop part that remains active in production. The Threadripper has an unlocked multiplier for overclocking, while the Xeon is locked. Both lack integrated graphics, so a discrete GPU is mandatory.

FAQ

Q: Which processor has more cores?

A: The Intel Xeon W-2191B has 18 cores and 36 threads, while the AMD Ryzen Threadripper 2950X has 16 cores and 32 threads.

Q: Which processor has higher clock speeds?

A: The Threadripper 2950X has a higher base clock of 3.50 GHz and a higher boost clock of 4.40 GHz, compared to the Xeon W-2191B’s 2.30 GHz base and 4.30 GHz boost.

Q: Does either processor support ECC memory?

A: The Intel Xeon W-2191B supports ECC memory, while the AMD Ryzen Threadripper 2950X does not.

Q: Which processor wins in Cinebench R23 multi-core?

A: The Threadripper 2950X wins with a score of 25040, which is 4.6% higher than the Xeon W-2191B’s 23887.

Q: How do their average benchmark scores compare?

A: The Threadripper 2950X has an average benchmark score of 6647, while the Xeon W-2191B averages 6531. Both CPUs sit at the 62nd percentile among all CPUs.

Q: What is the power consumption difference?

A: The Threadripper 2950X has a TDP of 180 W, while the Xeon W-2191B has a TDP of 140 W.

Specification Differences

The table below highlights only the fields where the two processors differ:

| Specification | Intel Xeon W-2191B | AMD Ryzen Threadripper 2950X |

|---|---|---|

| Cores | 18 | 16 |

| Threads | 36 | 32 |

| Base Clock | 2.30 GHz | 3.50 GHz |

| Boost Clock | 4.30 GHz | 4.40 GHz |

| TDP | 140 W | 180 W |

| Socket | Intel Socket 2066 | AMD Socket SP3r2 |

| Architecture | Skylake | Zen+ |

| Codename | Skylake-W | Colfax |

| Process Node | 14 nm | 12 nm |

| Foundry | Intel | GlobalFoundries |

| Die Size | 484 mm² | 2x 213 mm² |

| Transistors | Not listed | 9,600 million |

| L1 Cache | 64 KB (per core) | 96 KB (per core) |

| L2 Cache | 1 MB (per core) | 512 KB (per core) |

| L3 Cache | 24.75 MB (shared) | 32 MB |

| Memory Bandwidth | 85.3 GB/s | 93.9 GB/s |

| ECC Memory | Yes | No |

| PCIe Lanes | 48 (Gen 3) | 60 (Gen 3) |

| Market Segment | Server/Workstation | Desktop |

| Production Status | End-of-life | Active |

| Release Date | 2017-12-20 | 2018-08-30 |

| Launch MSRP | Not listed | $899 |

| Multiplier Unlocked | No | Yes |

| Part Number | SR3RW | YD295XA8UGAAF |

Head-to-Head Benchmarks

The most striking result is in Geekbench multi-core, where the Intel Xeon W-2191B beats the Threadripper 2950X by 13.5%, scoring 9614 versus 8469. This is a large margin that outweighs any single Cinebench difference. The Xeon’s two additional cores and four additional threads, combined with its 24.75 MB shared L3 cache, clearly enable better scaling in this particular benchmark. The Xeon’s 18-core configuration appears to provide a structural advantage that the Threadripper’s higher clocks cannot overcome in Geekbench’s parallel workload.

Every other benchmark goes to the Threadripper, with consistent margins. In Cinebench R23 multi-core, the Threadripper scores 25040 versus 23887, a 4.6% advantage. The single-core version shows the same 4.6% margin: 3535 versus 3372. This consistency across both single and multi-core tests in the same benchmark suite indicates that the Threadripper’s clock speed advantage is the primary driver, not its core count. With a 4.40 GHz boost versus 4.30 GHz, the Threadripper’s per-thread performance is uniformly higher.

Cinebench R20 follows the same pattern. The Threadripper wins multi-core with 10516 versus 10032, again a 4.6% margin. Single-core shows 1484 versus 1416, also 4.6%. The identical delta percentages across R15, R20, and R23 multi-core tests (all exactly 4.6%) suggest that the performance ratio is stable regardless of workload intensity within the Cinebench suite. The Threadripper wins Cinebench R15 multi-core with 2523 versus 2407, and single-core with 356 versus 339.

Geekbench single-core is the closest margin, with the Threadripper winning 1255 versus 1182, a 5.8% advantage. This is slightly larger than the Cinebench single-core margins, indicating that Geekbench’s single-threaded workload is even more sensitive to the Threadripper’s clock advantage. The Xeon’s lower base clock of 2.30 GHz likely hurts it in short burst workloads, even though its boost reaches 4.30 GHz.

The average benchmark scores reinforce the Threadripper’s overall lead. The Threadripper averages 6647 across all tests, while the Xeon averages 6531. This places the Threadripper within 0.1% of the Intel Core i5-13400E (6638) and 0.5% ahead of the Core i9-12900E (6611). The Xeon sits 0.3% ahead of the Xeon D-2796TE (6510) and 0.8% behind the Core i5-13500E (6586). Both CPUs share the 62nd percentile among all CPUs, placing them in the same performance tier despite their different architectures.

In terms of total wins, the Threadripper takes 7 of 8 benchmarks. The only loss is the Geekbench multi-core test, but that loss is by a margin (13.5%) that is nearly three times larger than any of the Threadripper’s victories (maximum 5.8%). This asymmetry is important: the Xeon’s single win is by a wide margin, while the Threadripper’s wins are narrow but consistent. For workloads that resemble Geekbench multi-core, the Xeon is clearly superior; for everything else in this test suite, the Threadripper holds a steady, if modest, advantage.