
Xeon E5640

Core i5-6500T
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 E5640 is positioned at rank 574 and the Core i5-6500T is on rank 493, so the Core i5-6500T offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5640
Performance Per Dollar Core i5-6500T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5640 | Core i5-6500T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($35) |
| Longevity | 🛑 Legacy (Legacy / Standard Node) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E5640 | Core i5-6500T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($35) |
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 E5640 and Core i5-6500T

Xeon E5640
The Xeon E5640 is manufactured by Intel. It was released in 2015-01-01. Passmark benchmark score: 4,755 points. Launch price was $800.

Core i5-6500T
The Core i5-6500T is manufactured by Intel. It was released in 2 July 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 3.1 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 4,764 points. Launch price was $192.
Processing Power
The Core i5-6500T is built on the Skylake (2015−2016) architecture. In PassMark, the Xeon E5640 scores 4,755 against the Core i5-6500T's 4,764 — a 0.2% lead for the Core i5-6500T.
| Feature | Xeon E5640 | Core i5-6500T |
|---|---|---|
| Cores / Threads | — | 4 / 4 |
| Boost Clock | — | 3.1 GHz |
| Base Clock | — | 2.5 GHz |
| L3 Cache | — | 6 MB (total) |
| L2 Cache | — | 256 kB (per core) |
| Process | — | 14 nm |
| Architecture | — | Skylake (2015−2016) |
| PassMark | 4,755 | 4,764 |
Advanced Features
Virtualization: not specified (Xeon E5640) / VT-x, VT-d (Core i5-6500T). The Core i5-6500T includes integrated graphics (HD Graphics 530), while the Xeon E5640 requires a dedicated GPU. Primary use case: Core i5-6500T targets Desktop.
| Feature | Xeon E5640 | Core i5-6500T |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | HD Graphics 530 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Desktop |
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