Xeon E3-1276 v3 vs Xeon E5-2640 v2
Xeon E3-1276 v3
Xeon E5-2640 v2
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 E3-1276 v3 is positioned at rank 416 and the Xeon E5-2640 v2 is on rank 1023, so the Xeon E3-1276 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 E3-1276 v3
Performance Per Dollar Xeon E5-2640 v2
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1276 v3 | Xeon E5-2640 v2 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($244) | ⚠️ Higher cost ($530) |
| Longevity | 🛑 Legacy (Legacy / 22 nm) | 🛑 Legacy (Ivy Bridge-EP (2013) / 22 nm) |
💎 Value Proposition
| Insight | Xeon E3-1276 v3 | Xeon E5-2640 v2 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+115%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($244) | ⚠️ Higher cost ($530) |
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 E3-1276 v3 and Xeon E5-2640 v2
Xeon E3-1276 v3
The Xeon E3-1276 v3 is manufactured by Intel. It was released in 2015-01-01. It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 84 Watt. Memory support: DDR3L-1333, DDR3L-1600. Passmark benchmark score: 7,543 points. Launch price was $800.
Xeon E5-2640 v2
The Xeon E5-2640 v2 is manufactured by Intel. It was released in 1 September 2013 (12 years ago). It is based on the Ivy Bridge-EP (2013) architecture. It features 8 cores and 16 threads. Base frequency is 2 GHz, with boost up to 2.5 GHz. L3 cache: 20 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 7,625 points. Launch price was $728.
Processing Power
The Xeon E3-1276 v3 packs 4 cores / 8 threads, while the Xeon E5-2640 v2 offers 8 cores / 16 threads — the Xeon E5-2640 v2 has 4 more cores. Boost clocks reach 4 GHz on the Xeon E3-1276 v3 versus 2.5 GHz on the Xeon E5-2640 v2 — a 46.2% clock advantage for the Xeon E3-1276 v3 (base: 3.6 GHz vs 2 GHz). The Xeon E5-2640 v2 is built on the Ivy Bridge-EP (2013) architecture. In PassMark, the Xeon E3-1276 v3 scores 7,543 against the Xeon E5-2640 v2's 7,625 — a 1.1% lead for the Xeon E5-2640 v2. L3 cache: 8 MB Intel® Smart Cache on the Xeon E3-1276 v3 vs 20 MB (total) on the Xeon E5-2640 v2.
| Feature | Xeon E3-1276 v3 | Xeon E5-2640 v2 |
|---|---|---|
| Cores / Threads | 4 / 8 | 8 / 16+100% |
| Boost Clock | 4 GHz+60% | 2.5 GHz |
| Base Clock | 3.6 GHz+80% | 2 GHz |
| L3 Cache | 8 MB Intel® Smart Cache | 20 MB (total)+150% |
| L2 Cache | — | 256 kB (per core) |
| Process | 22 nm | 22 nm |
| Architecture | — | Ivy Bridge-EP (2013) |
| PassMark | 7,543 | 7,625+1% |
Memory & Platform
The Xeon E3-1276 v3 uses the LGA1150 socket (PCIe 3.0), while the Xeon E5-2640 v2 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1276 v3 | Xeon E5-2640 v2 |
|---|---|---|
| Socket | LGA1150 | LGA2011 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | — | DDR3-1600 |
| Max RAM Capacity | — | 768 GB |
| RAM Channels | — | 4 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 40 |
Value Analysis
The Xeon E3-1276 v3 launched at $213 MSRP, while the Xeon E5-2640 v2 debuted at $4115. At current prices ($244 vs $530), the Xeon E3-1276 v3 is $286 cheaper. In terms of value (PassMark points per dollar), the Xeon E3-1276 v3 delivers 30.9 pts/$ vs 14.4 pts/$ for the Xeon E5-2640 v2 — making the Xeon E3-1276 v3 the 73% better value option.
| Feature | Xeon E3-1276 v3 | Xeon E5-2640 v2 |
|---|---|---|
| MSRP | $213-95% | $4115 |
| Avg Price (30d) | $244-54% | $530 |
| Performance per Dollar | 30.9+115% | 14.4 |
| Release Date | 2014 | 2013 |
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