Pentium G840 vs Pentium G640
Pentium G840
Pentium G640
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 Pentium G840 is positioned at rank 764 and the Pentium G640 is on rank 763, so the Pentium G640 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium G840
Performance Per Dollar Pentium G640
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium G840 | Pentium G640 |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($5) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Pentium G840 | Pentium G640 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+200%) |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($5) |
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 Pentium G840 and Pentium G640
Pentium G840
The Pentium G840 is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,367 points. Launch price was $60.
Pentium G640
The Pentium G640 is manufactured by Intel. It was released in 3 June 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,369 points. Launch price was $179.
Processing Power
Both the Pentium G840 and Pentium G640 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium G840 versus 2.8 GHz on the Pentium G640 — identical boost frequencies (base: 2.8 GHz vs 2.8 GHz). Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Pentium G840 scores 1,367 against the Pentium G640's 1,369 — a 0.1% lead for the Pentium G640. Both processors carry 3 MB (total) of L3 cache.
| Feature | Pentium G840 | Pentium G640 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.8 GHz | 2.8 GHz |
| Base Clock | 2.8 GHz | 2.8 GHz |
| L3 Cache | 3 MB (total) | 3 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Sandy Bridge (2011−2013) |
| PassMark | 1,367 | 1,369 |
Memory & Platform
Both processors use the LGA1155 socket with PCIe 2.0.
| Feature | Pentium G840 | Pentium G640 |
|---|---|---|
| Socket | LGA1155 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Value Analysis
The Pentium G840 launched at $64 MSRP, while the Pentium G640 debuted at $64. At current prices ($15 vs $5), the Pentium G640 is $10 cheaper. In terms of value (PassMark points per dollar), the Pentium G840 delivers 91.1 pts/$ vs 273.8 pts/$ for the Pentium G640 — making the Pentium G640 the 100.1% better value option.
| Feature | Pentium G840 | Pentium G640 |
|---|---|---|
| MSRP | $64 | $64 |
| Avg Price (30d) | $15 | $5-67% |
| Performance per Dollar | 91.1 | 273.8+201% |
| Release Date | 2011 | 2012 |
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