
Core i7-2840QM vs Xeon E3-1220

Core i7-2840QM

Xeon E3-1220
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 Core i7-2840QM is positioned at rank 311 and the Xeon E3-1220 is on rank 632, so the Core i7-2840QM offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-2840QM
Performance Per Dollar Xeon E3-1220
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-2840QM | Xeon E3-1220 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i7-2840QM | Xeon E3-1220 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Core i7-2840QM and Xeon E3-1220

Core i7-2840QM
The Core i7-2840QM is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Max frequency: 2.4 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 32 nm process technology. Socket: G2. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 3,842 points. Launch price was $69.

Xeon E3-1220
The Xeon E3-1220 is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.4 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 3,859 points. Launch price was $395.
Processing Power
The Core i7-2840QM packs 4 cores / 8 threads, matching the Xeon E3-1220's 4 cores. Boost clocks reach 2.4 GHz on the Core i7-2840QM versus 3.4 GHz on the Xeon E3-1220 — a 34.5% clock advantage for the Xeon E3-1220. Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Core i7-2840QM scores 3,842 against the Xeon E3-1220's 3,859 — a 0.4% lead for the Xeon E3-1220. L3 cache: 8 MB on the Core i7-2840QM vs 8 MB (total) on the Xeon E3-1220.
| Feature | Core i7-2840QM | Xeon E3-1220 |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 4 |
| Boost Clock | 2.4 GHz | 3.4 GHz+42% |
| Base Clock | — | 3.1 GHz |
| L3 Cache | 8 MB | 8 MB (total) |
| L2 Cache | 1 MB+300% | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Sandy Bridge (2011−2013) |
| PassMark | 3,842 | 3,859 |
Memory & Platform
The Core i7-2840QM uses the G2 socket (PCIe 2.0), while the Xeon E3-1220 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i7-2840QM | Xeon E3-1220 |
|---|---|---|
| Socket | G2 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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