Pentium G645 vs Core i7-620LM
Pentium G645
Core i7-620LM
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 G645 is positioned at rank 838 and the Core i7-620LM is on rank 1208, so the Pentium G645 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium G645
Performance Per Dollar Core i7-620LM
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium G645 | Core i7-620LM |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($15) | ⚠️ Higher cost ($300) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Pentium G645 | Core i7-620LM |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+1882%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($15) | ⚠️ Higher cost ($300) |
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 G645 and Core i7-620LM
Pentium G645
The Pentium G645 is manufactured by Intel. It was released in 2 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 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: 1,450 points. Launch price was $80.
Core i7-620LM
The Core i7-620LM is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2.8 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 25 Watt. Memory support: DDR3-800, DDR3-1066. Passmark benchmark score: 1,463 points. Launch price was $300.
Processing Power
The Pentium G645 packs 2 cores / 2 threads, matching the Core i7-620LM's 2 cores. Boost clocks reach 2.9 GHz on the Pentium G645 versus 2.8 GHz on the Core i7-620LM — a 3.5% clock advantage for the Pentium G645 (base: 2.9 GHz vs 2 GHz). The Pentium G645 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-620LM uses Arrandale (2010−2011) (32 nm). In PassMark, the Pentium G645 scores 1,450 against the Core i7-620LM's 1,463 — a 0.9% lead for the Core i7-620LM. L3 cache: 3 MB (total) on the Pentium G645 vs 4 MB (total) on the Core i7-620LM.
| Feature | Pentium G645 | Core i7-620LM |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 2.9 GHz+4% | 2.8 GHz |
| Base Clock | 2.9 GHz+45% | 2 GHz |
| L3 Cache | 3 MB (total) | 4 MB (total)+33% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Arrandale (2010−2011) |
| PassMark | 1,450 | 1,463 |
| Geekbench 6 Single | — | 450 |
| Geekbench 6 Multi | — | 900 |
Memory & Platform
The Pentium G645 uses the LGA1155 socket (PCIe 2.0), while the Core i7-620LM uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium G645 | Core i7-620LM |
|---|---|---|
| Socket | LGA1155 | BGA1288 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1066 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Pentium G645) / VT-x, VT-d (Core i7-620LM). The Core i7-620LM includes integrated graphics (Intel HD Graphics), while the Pentium G645 requires a dedicated GPU. Primary use case: Core i7-620LM targets Budget. Direct competitor: Core i7-620LM rivals Ryzen 5 3500U.
| Feature | Pentium G645 | Core i7-620LM |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel HD Graphics |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Budget |
Value Analysis
The Pentium G645 launched at $80 MSRP, while the Core i7-620LM debuted at $300.
| Feature | Pentium G645 | Core i7-620LM |
|---|---|---|
| MSRP | $80-73% | $300 |
| Avg Price (30d) | $15 | — |
| Release Date | 2012 | 2010 |
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