CPU
GPU
Xeon E5-4655 v4
Xeon E5-2640 v3
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.
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. The Xeon E5-4655 v4 is positioned at rank 1019 and the Xeon E5-2640 v3 is on rank 819, so the Xeon E5-2640 v3 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5-4655 v4
Performance Per Dollar Xeon E5-2640 v3
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-4655 v4 | Xeon E5-2640 v3 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($4,616) | ✅ More affordable ($189) |
| Longevity | 🛑 Legacy (Broadwell (2015−2019) / 14 nm) | 🛑 Legacy (Haswell-EP (2014−2015) / 22 nm) |
💎 Value Proposition
| Insight | Xeon E5-4655 v4 | Xeon E5-2640 v3 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+2374%) |
| Upfront Cost | ⚠️ Higher cost ($4,616) | ✅ More affordable ($189) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Xeon E5-4655 v4 and Xeon E5-2640 v3
Xeon E5-4655 v4
The Xeon E5-4655 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 8 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 3.2 GHz. L3 cache: 30 MB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4. Passmark benchmark score: 10,912 points. Launch price was $4,616.
Xeon E5-2640 v3
The Xeon E5-2640 v3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 8 cores and 16 threads. Base frequency is 2.6 GHz, with boost up to 3.4 GHz. L3 cache: 20 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 90 Watt. Memory support: DDR4-1600, DDR4-1866. Passmark benchmark score: 11,055 points. Launch price was $800.
Processing Power
Both the Xeon E5-4655 v4 and Xeon E5-2640 v3 share an identical 8-core/16-thread configuration. Boost clocks reach 3.2 GHz on the Xeon E5-4655 v4 versus 3.4 GHz on the Xeon E5-2640 v3 — a 6.1% clock advantage for the Xeon E5-2640 v3 (base: 2.5 GHz vs 2.6 GHz). The Xeon E5-4655 v4 uses the Broadwell (2015−2019) architecture (14 nm), while the Xeon E5-2640 v3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Xeon E5-4655 v4 scores 10,912 against the Xeon E5-2640 v3's 11,055 — a 1.3% lead for the Xeon E5-2640 v3. L3 cache: 30 MB on the Xeon E5-4655 v4 vs 20 MB (total) on the Xeon E5-2640 v3.
| Feature | Xeon E5-4655 v4 | Xeon E5-2640 v3 |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 3.2 GHz | 3.4 GHz+6% |
| Base Clock | 2.5 GHz | 2.6 GHz+4% |
| L3 Cache | 30 MB+50% | 20 MB (total) |
| L2 Cache | 2 MB+700% | 256K (per core) |
| Process | 14 nm-36% | 22 nm |
| Architecture | Broadwell (2015−2019) | Haswell-EP (2014−2015) |
| PassMark | 10,912 | 11,055+1% |
Memory & Platform
Both processors use the LGA2011 socket with PCIe 5.0. Both support up to DDR4-2400 memory speed. The Xeon E5-4655 v4 supports up to 1536 GB of RAM compared to 768 GB — 66.7% more capacity for professional workloads. Both feature 4-channel memory with ECC support. Both provide 40 PCIe lanes.
| Feature | Xeon E5-4655 v4 | Xeon E5-2640 v3 |
|---|---|---|
| Socket | LGA2011 | LGA2011 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR4-2400 | DDR4-1866 |
| Max RAM Capacity | 1536 GB+100% | 768 GB |
| RAM Channels | 4 | 4 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 40 | 40 |
Advanced Features
Neither processor supports overclocking. Only the Xeon E5-2640 v3 supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Primary use case: Xeon E5-4655 v4 targets Server, Xeon E5-2640 v3 targets Server.
| Feature | Xeon E5-4655 v4 | Xeon E5-2640 v3 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | No |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
| Target Use | Server | Server |
Value Analysis
The Xeon E5-4655 v4 launched at $4616 MSRP, while the Xeon E5-2640 v3 debuted at $939.
| Feature | Xeon E5-4655 v4 | Xeon E5-2640 v3 |
|---|---|---|
| MSRP | $4616 | $939-80% |
| Avg Price (30d) | — | $189 |
| Release Date | 2016 | 2014 |
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