
Core i7-640M

Celeron B810
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 i7-640M is positioned at rank 107 and the Celeron B810 is on rank 801, so the Core i7-640M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-640M
Performance Per Dollar Celeron B810
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-640M | Celeron B810 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($86) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i7-640M | Celeron B810 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($86) |
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 i7-640M and Celeron B810

Core i7-640M
The Core i7-640M is manufactured by Intel. It was released in 1 September 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 2.8 GHz, with boost up to 3.46 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,092 points. Launch price was $346.

Celeron B810
The Celeron B810 is manufactured by Intel. It was released in 1 March 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,091 points. Launch price was $86.
Processing Power
The Core i7-640M packs 2 cores / 4 threads, matching the Celeron B810's 2 cores. Boost clocks reach 3.46 GHz on the Core i7-640M versus 1.6 GHz on the Celeron B810 — a 73.5% clock advantage for the Core i7-640M (base: 2.8 GHz vs 1.6 GHz). The Core i7-640M uses the Arrandale (2010−2011) architecture (32 nm), while the Celeron B810 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i7-640M scores 2,092 against the Celeron B810's 2,091 — a 0% lead for the Core i7-640M. L3 cache: 4 MB (total) on the Core i7-640M vs 2 MB (total) on the Celeron B810.
| Feature | Core i7-640M | Celeron B810 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 3.46 GHz+116% | 1.6 GHz |
| Base Clock | 2.8 GHz+75% | 1.6 GHz |
| L3 Cache | 4 MB (total)+100% | 2 MB (total) |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Arrandale (2010−2011) | Sandy Bridge (2011−2013) |
| PassMark | 2,092 | 2,091 |
Memory & Platform
Both processors use the PGA988 socket with PCIe 2.0. Maximum memory speed reaches 1066 on the Core i7-640M versus DDR3-1333 on the Celeron B810 — the Core i7-640M supports 198.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron B810 supports up to 16 GB of RAM compared to 8 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: HM55,HM57,QM57 (Core i7-640M) and HM65,HM67,QM67,QM77 (Celeron B810).
| Feature | Core i7-640M | Celeron B810 |
|---|---|---|
| Socket | PGA988 | PGA988 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | 1066+35433% | DDR3-1333 |
| Max RAM Capacity | 8 | 16 GB+209715100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: true (Core i7-640M) vs VT-x (Celeron B810). Both include integrated graphics — Intel HD Graphics (Ironlake) (Core i7-640M) and HD Graphics (Sandy Bridge) (Celeron B810) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron B810 targets Budget. Direct competitor: Core i7-640M rivals Core 2 Duo T9600; Celeron B810 rivals Pentium 967.
| Feature | Core i7-640M | Celeron B810 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics (Ironlake) | HD Graphics (Sandy Bridge) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | true | VT-x |
| Target Use | — | Budget |
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