Intel Xeon W-2145

Intel Xeon W-2145 is an 8-core, 16-thread Skylake-W workstation processor with a 3.70 GHz base clock and 4.50 GHz boost clock, landing in the 61st percentile of all CPUs in the benchmark database. Its average benchmark score of 4422 places it in a tightly contested mid-pack segment, where the nearest rivals are separated by less than one percent in either direction — a statistical dead heat that demands workload-specific scrutiny rather than a blanket verdict.

How It Compares

AMD Ryzen 7 PRO 4750GE: The Xeon W-2145 edges ahead by 0.3% in average benchmark score (4422 vs. 4411). This is a negligible margin, effectively making the two processors interchangeable in aggregate throughput. The Ryzen part is a low-power APU, while the Xeon is a high-TDP workstation chip, yet the data shows virtually identical composite performance.

AMD Ryzen 7 5800U: The Xeon trails by 0.3% (4422 vs. 4436). Again, the delta is within run-to-run variance. The 5800U is a mobile processor, so the Xeon matching it in average score highlights how architecture and clock behavior can offset core-count and power differences in synthetic aggregate metrics.

Intel Core 3 100HL: The Xeon leads by 0.5% (4422 vs. 4400). This is the largest positive delta among the rival group, but still a sub-one-percent advantage. The Core 3 100HL is a newer, hybrid architecture part, yet the older Skylake-W design holds its ground in the benchmark aggregate.

Intel Core i7-9800X: The Xeon trails by 0.5% (4422 vs. 4446). This is the worst relative position, but the margin remains tiny. Both are Intel HEDT/workstation parts from different generations, and the data shows the i7-9800X has a slight composite edge without dominating in any measurable way.

Power and Thermals

The Xeon W-2145 carries a 140 W TDP, which classifies it firmly in the high-power workstation segment. This is not a processor for compact or passively cooled systems. The 14 nm process node and 484 mm² die size indicate a large, power-hungry chip that requires a robust thermal solution. Cooling tier implications are clear: a capable air cooler with a large heatsink or a quality liquid cooler is necessary to sustain boost clocks under sustained multi-threaded loads. Given the 4.50 GHz boost clock on a 140 W part, thermals will be a primary constraint in dense chassis or rack-mounted environments. The data does not include power efficiency metrics, but the TDP alone signals that this is a performance-first part, not an efficiency-focused one.

Benchmark Performance

In Cinebench R15 multi-core, the Xeon W-2145 scores 1541 points. For context, this is a strong result for an 8-core part, but the nearest rivals' average scores are all within 0.5% of 4422, so the per-test deltas are similarly tight. The single-core R15 score of 217 is modest, reflecting the 3.70 GHz base clock and the older Skylake architecture's IPC relative to newer designs.

Cinebench R20 shows a multi-core score of 6421 and a single-core score of 906. The multi-core result scales well from the R15 figure, indicating consistent performance across the thread count. The single-core score places it below modern high-IPC parts, but the R20 multi-core result is respectable for an 8-core processor.

Cinebench R23 delivers a multi-core score of 15289 and a single-core score of 2158. The R23 multi-core score is roughly 2.4 times the R15 multi-core score, which is consistent with the test's scaling. The single-core R23 score of 2158 is the weakest relative metric in the suite, showing that this chip relies on multi-threaded workloads to shine.

Against the nearest rivals, the average benchmark score deltas are all within 0.5%. This means that for composite workloads, the Xeon W-2145 is effectively tied with the Ryzen 7 PRO 4750GE, Ryzen 7 5800U, Core 3 100HL, and Core i7-9800X. The 0.5% lead over the Core 3 100HL is the only positive margin, and the 0.5% deficit to the Core i7-9800X is the only negative one. None of these differences would be perceptible in real-world use.

Who Should Consider It

The Xeon W-2145 is suited for multi-threaded workstation tasks where the 8-core, 16-thread configuration and 140 W TDP are justified. The Cinebench multi-core scores (1541 in R15, 6421 in R20, 15289 in R23) indicate strong parallel rendering and compute performance for its class. Users running CPU-based 3D rendering, video encoding, or simulation workloads would see solid throughput, though the data does not show a decisive advantage over the nearest rivals.

For gaming, the single-core scores (217 in R15, 906 in R20, 2158 in R23) are below modern high-IPC parts, so the Xeon W-2145 is not an obvious choice for frame-rate-sensitive titles. The lack of an integrated GPU also means a discrete graphics card is mandatory. Office and light productivity workloads would be adequately served, but the 140 W TDP and workstation platform make it overkill for such tasks.

The data suggests this is a niche part for users who specifically need ECC memory support and quad-channel bandwidth (85.3 GB/s) in a Skylake-based system, and who prioritize multi-threaded consistency over single-thread speed.

Platform and Compatibility

The Xeon W-2145 uses Intel Socket 2066, the HEDT platform that supports quad-channel DDR4 memory and ECC memory. The memory bus is quad-channel with a theoretical bandwidth of 85.3 GB/s, which is a key advantage over consumer platforms for memory-intensive workloads. PCIe support is Gen 3 with 48 lanes from the CPU, providing ample bandwidth for multiple GPUs, NVMe drives, or other high-throughput expansion cards.

The architecture is Skylake-W, part of the Xeon W generation released on 2017-08-28. The production status is end-of-life, so new system builds would rely on used or remaining stock. The multiplier is locked, meaning overclocking is not supported. The 484 mm² die size and 14 nm process are dated by modern standards, but the platform's expansion capabilities remain relevant for specific workstation use cases.

Upgrade path on Socket 2066 is limited to other Skylake-X or Cascade Lake-X parts, but the Xeon W-2145's performance level means an upgrade would require a significant jump in core count to justify the cost and platform change. The 48 PCIe Gen 3 lanes are a standout feature, matching or exceeding many current consumer platforms in expansion capacity.

Single-Thread vs Multi-Thread Behavior

The Xeon W-2145 shows a clear multi-thread strength. The R23 multi-core score of 15289 is 7.1 times the single-core score of 2158, which is a healthy scaling factor for an 8-core processor (theoretical maximum of 8x). This indicates that the chip efficiently utilizes all cores under parallel loads, with minimal overhead from the 16 threads.

The single-thread scores (217 in R15, 906 in R20, 2158 in R23) are unremarkable for a 4.50 GHz boost clock. This suggests the Skylake architecture's IPC is the limiting factor, not clock speed. The 3.70 GHz base clock is low relative to the boost, meaning lightly-threaded workloads may spend time at lower frequencies unless the workload triggers boost behavior.

For real workloads, this split means: multi-threaded rendering, encoding, and compilation will benefit from the near-linear scaling, while single-threaded applications like older games, some scripting, or light office tasks will not see the same performance advantage. Users who run a mix of single- and multi-threaded tasks should expect inconsistent performance — the chip shines when all cores are busy, but feels dated in lightly-threaded scenarios.

FAQ

Q: How does the Xeon W-2145 compare to the Intel Core i7-9800X in average benchmark score?

A: The Xeon W-2145 trails by 0.5% (4422 vs. 4446), a negligible difference in aggregate performance.

Q: What is the memory configuration and does it support ECC?

A: The processor supports quad-channel DDR4 memory with a bandwidth of 85.3 GB/s, and ECC memory is supported.

Q: What is the TDP and cooling requirement?

A: The TDP is 140 W, which requires a robust cooling solution — either a large air cooler or a liquid cooler — to sustain boost clocks under load.

Q: What is the single-core performance in Cinebench R23?

A: The single-core score is 2158, which is modest compared to newer architectures and indicates limited single-threaded capability.

Q: Is this processor overclockable?

A: No, the multiplier is locked, so overclocking is not supported.

Q: What is the PCIe configuration?

A: The CPU provides 48 PCIe Gen 3 lanes, offering substantial expansion for GPUs and NVMe devices.