Pentium G640 vs Core i7-12700K
Pentium G640
Core i7-12700K
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. The Pentium G640 is positioned at rank #763 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium G640
Performance Per Dollar Core i7-12700K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium G640 | Core i7-12700K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($5) | ⚠️ Higher cost ($285) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | ✨ Modern (Alder Lake, Golden Cove, Gracemont (2021) / 10 nm) |
💎 Value Proposition
| Insight | Pentium G640 | Core i7-12700K |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+127%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($5) | ⚠️ Higher cost ($285) |
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 G640 and Core i7-12700K
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.
Core i7-12700K
The Core i7-12700K is manufactured by Intel. It was released in 4 November 2021 (4 years ago). It is based on the Alder Lake, Golden Cove, Gracemont (2021) architecture. It features 12 cores and 20 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 25 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 34,347 points. Launch price was $409.
Processing Power
The Pentium G640 packs 2 cores / 2 threads, while the Core i7-12700K offers 12 cores / 20 threads — the Core i7-12700K has 10 more cores. Boost clocks reach 2.8 GHz on the Pentium G640 versus 5 GHz on the Core i7-12700K — a 56.4% clock advantage for the Core i7-12700K (base: 2.8 GHz vs 3.6 GHz). The Pentium G640 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-12700K uses Alder Lake, Golden Cove, Gracemont (2021) (10 nm). In PassMark, the Pentium G640 scores 1,369 against the Core i7-12700K's 34,347 — a 184.7% lead for the Core i7-12700K. L3 cache: 3 MB (total) on the Pentium G640 vs 25 MB (total) on the Core i7-12700K.
| Feature | Pentium G640 | Core i7-12700K |
|---|---|---|
| Cores / Threads | 2 / 2 | 12 / 20+500% |
| Boost Clock | 2.8 GHz | 5 GHz+79% |
| Base Clock | 2.8 GHz | 3.6 GHz+29% |
| L3 Cache | 3 MB (total) | 25 MB (total)+733% |
| L2 Cache | 256 kB (per core) | 1.25 MB (per core)+400% |
| Process | 32 nm | 10 nm-69% |
| Architecture | Sandy Bridge (2011−2013) | Alder Lake, Golden Cove, Gracemont (2021) |
| PassMark | 1,369 | 34,347+2409% |
Memory & Platform
The Pentium G640 uses the LGA1155 socket (PCIe 2.0), while the Core i7-12700K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Pentium G640 | Core i7-12700K |
|---|---|---|
| Socket | LGA1155 | LGA1700 |
| PCIe Generation | PCIe 2.0 | PCIe 5.0+150% |
| Max RAM Speed | — | 4800 |
| Max RAM Capacity | — | 128 |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 20 |
Advanced Features
Virtualization: not specified (Pentium G640) / VT-x, VT-d (Core i7-12700K). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Pentium G640 requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.
| Feature | Pentium G640 | Core i7-12700K |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel UHD Graphics 770 |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
Value Analysis
The Pentium G640 launched at $64 MSRP, while the Core i7-12700K debuted at $409. At current prices ($5 vs $285), the Pentium G640 is $280 cheaper. In terms of value (PassMark points per dollar), the Pentium G640 delivers 273.8 pts/$ vs 120.5 pts/$ for the Core i7-12700K — making the Pentium G640 the 77.7% better value option.
| Feature | Pentium G640 | Core i7-12700K |
|---|---|---|
| MSRP | $64-84% | $409 |
| Avg Price (30d) | $5-98% | $285 |
| Performance per Dollar | 273.8+127% | 120.5 |
| Release Date | 2012 | 2021 |
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