Xeon E5-1681 V3
Intel
PassMark
14,820
MSRP
$1589
AVG Price
$200
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 E5-1681 V3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 10 cores and 20 threads. Base frequency is 2.9 GHz, with boost up to 3.5 GHz. L3 cache: 25 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 135 Watt. Memory support: DDR4-2133. Passmark benchmark score: 14,820 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 E5-1681 V3
FPS Benchmarks
Predicted performance for Xeon E5-1681 V3 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 E5-1681 V3 specifications and capabilities.
Processing Power
The Xeon E5-1681 V3 is a 10-core / 20-thread processor based on the Haswell-EP (2014−2015) architecture, manufactured on a 22 nm process node. It reaches a maximum boost clock of 3.5 GHz from a base frequency of 2.9 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 25 MB (total) of L3 cache, plus 256K (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 14,820, placing it in the Budget performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 1,050, while multi-core reaches 9,000.
| Specification | Xeon E5-1681 V3 |
|---|---|
| Cores / ThreadsPhysical/logical processing units | 10C / 20T |
| Max Boost ClockPeak single-core speed under boost | 3.5 GHz |
| Base ClockGuaranteed minimum operating frequency | 2.9 GHz |
| ArchitectureCPU microarchitecture design | Haswell-EP (2014−2015) |
| Process NodeFabrication technology — smaller = more efficient | 22 nm |
| L3 CacheShared cache — reduces memory latency for all cores | 25 MB (total) |
| L2 CachePer-core fast cache for frequently accessed data | 256K (per core) |
| L1 CacheUltra-fast per-core cache | 64K (per core) |
| Die SizePhysical silicon area of the processor | 356 mm2 |
| Transistor CountMore transistors = more capabilities | 2,600 million |
| 64-bit Support | Yes |
| PassMark ScoreOverall multi-threaded benchmark score | 14,820 |
| Geekbench 6 SingleSingle-core performance — most relevant for gaming | 1,050 |
| Geekbench 6 MultiMulti-core parallel workload performance | 9,000 |
Memory & Platform
The Xeon E5-1681 V3 fits into the LGA2011-3 socket and supports PCIe 3.0 with 40 total PCIe lanes for expansion cards and storage. It supports DDR4-2133 memory at speeds up to DDR4-2133 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 768 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 E5-1681 V3 |
|---|---|
| TypeDesktop or Laptop processor | server |
| SocketMotherboard socket required | LGA2011-3 |
| PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth | PCIe 3.0 |
| PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion | 40 |
| RAM TypeSupported memory standard | DDR4-2133 |
| Max RAM SpeedMaximum officially supported memory frequency | DDR4-2133 |
| Max RAM CapacityMaximum installable memory | 768 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 |
| Compatible ChipsetsMotherboard chipsets that support this CPU | C612,X99 |
| Max CPUs in ConfigMulti-socket support for servers | 1 |
Advanced Features
Virtualization: Yes — enables running virtual machines efficiently (important for development and server workloads).
| Specification | Xeon E5-1681 V3 |
|---|---|
| AVX-512Advanced vector instructions for AI/ML workloads | ❌ Not Supported |
| VirtualizationHardware-assisted virtualization technology | Yes |
Power & Cooling
The Xeon E5-1681 V3 has a rated TDP (Thermal Design Power) of 135 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately.
| Specification | Xeon E5-1681 V3 |
|---|---|
| TDPThermal Design Power — heat output under sustained workload | 135 Watt |
| Included CoolerStock cooler bundled in the box | No |
Value Analysis
At an average price of $200 (MSRP: $1589), the Xeon E5-1681 V3 delivers 74 PassMark points per dollar. Performance ranking position: #1021 out of all indexed processors.
| Specification | Xeon E5-1681 V3 |
|---|---|
| MSRPManufacturer's Suggested Retail Price | $1589 |
| Avg Price (30d)Average market price over the last 30 days | $200 |
| Launch PriceOriginal retail price at launch | $800 |
| Performance RankPosition in overall performance ranking | #1021 |
| Release DateLaunch date | 2015-01-01 |
| Release Year | 2014 |
| DesignerArchitecture designer (e.g. Intel, AMD) | Intel |
| ManufacturerFabrication foundry (e.g. TSMC) | Intel |
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Our Recommendation for Xeon E5-1681 V3
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Minimum (Avoid Bottleneck) (12)
Recommended (Balanced) (12)
High-End (Max Performance) (12)
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