Xeon W-2191B
Intel
PassMark
28,362
MSRP
$1333
AVG Price
$39
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Overview
The Xeon W-2191B is manufactured by Intel. It was released in 2015-01-01. It is based on the Skylake (server) (2017−2018) architecture. It features 18 cores and 36 threads. Base frequency is 2.3 GHz, with boost up to 4.3 GHz. L3 cache: 24.75 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2666. Passmark benchmark score: 28,362 points. Launch price was $800.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon W-2191B
FPS Benchmarks
Predicted performance for Xeon W-2191B across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Technical Analysis
Detailed breakdown of Xeon W-2191B specifications and capabilities.
Processing Power
The Xeon W-2191B is a 18-core / 36-thread processor based on the Skylake (server) (2017−2018) architecture, manufactured on a 14 nm process node. It reaches a maximum boost clock of 4.3 GHz from a base frequency of 2.3 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 24.75 MB (total) of L3 cache, plus 1 MB (per core) of L2 cache and 64K (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 28,362, placing it in the High-End performance tier as a Legacy generation product.
| Specification | Xeon W-2191B |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 18C / 36T |
| Max Boost ClockPeak single-core speed under boost | 4.3 GHz |
| Base ClockGuaranteed minimum operating frequency | 2.3 GHz |
| ArchitectureCPU microarchitecture design | Skylake (server) (2017−2018) |
| Process NodeFabrication technology — smaller = more efficient | 14 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 24.75 MB (total) |
| L2 CachePer-core fast cache for frequently accessed data | 1 MB (per core) |
| L1 CacheUltra-fast per-core cache | 64K (per core) |
| Die SizePhysical silicon area of the processor | 484 mm2 |
| Bus SpeedData bus frequency | 4 × 8 GT/s |
| 64-bit Support | Yes |
| Windows 11 Compatible | No |
| PassMark ScoreOverall multi-threaded benchmark score | 28,362 |
Memory & Platform
The Xeon W-2191B fits into the LGA2066 socket and supports PCIe 3.0 with 48 total PCIe lanes for expansion cards and storage. It supports DDR4-2666 memory at speeds up to DDR4-2666 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 512 GB across 4 channels (dual-channel doubles bandwidth). It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers.
| Specification | Xeon W-2191B |
|---|---|
| TypeDesktop or Laptop processor | server |
| SeriesProduct family | Intel Xeon W |
| SocketMotherboard socket required | LGA2066 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 3.0 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 48 |
| RAM TypeSupported memory standard | DDR4-2666 |
| Max RAM SpeedMaximum officially supported memory frequency | DDR4-2666 |
| Max RAM CapacityMaximum installable memory | 512 GB |
| RAM ChannelsDual-channel doubles bandwidth vs single-channel | 4 |
| ECC SupportError-Correcting Code memory — prevents data corruption | Yes |
| Integrated GPUBuilt-in graphics processor | No |
| Max CPUs in ConfigMulti-socket support for servers | 1 (Uniprocessor) |
Advanced Features
The Xeon W-2191B is primarily designed for Workstation. It supports AVX-512 instructions — specialized SIMD operations that significantly accelerate AI inference, scientific computing, and video encoding workloads. Virtualization: VT-x, VT-d — enables running virtual machines efficiently (important for development and server workloads).
| Specification | Xeon W-2191B |
|---|---|
| Primary Use CaseIntended workload category | Workstation |
| OverclockingWhether CPU clock can be manually increased | 🔒 Locked |
| AVX-512Advanced vector instructions for AI/ML workloads | ✅ Supported |
| VirtualizationHardware-assisted virtualization technology | VT-x, VT-d |
Power & Cooling
The Xeon W-2191B has a rated TDP (Thermal Design Power) of 140 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.
| Specification | Xeon W-2191B |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 140 Watt |
Value Analysis
At an average price of $39 (MSRP: $1333), the Xeon W-2191B delivers 727 PassMark points per dollar. Performance ranking position: #471 out of all indexed processors.
| Specification | Xeon W-2191B |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $1333 |
| Avg Price (30d)Average market price over the last 30 days | $39 |
| Launch PriceOriginal retail price at launch | $800 |
| Performance RankPosition in overall performance ranking | #471 |
| Release DateLaunch date | 2015-01-01 |
| Release Year | 2017 |
| DesignerArchitecture designer (e.g. Intel, AMD) | Intel |
| ManufacturerFabrication foundry (e.g. TSMC) | Intel |
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Our Recommendation for Xeon W-2191B
Suggested pairings based on performance balance
Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
Popular Comparisons
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