Core i7-620LM vs Pentium G645
Core i7-620LM
Pentium G645
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 i7-620LM is positioned at rank 1208 and the Pentium G645 is on rank 838, 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 Core i7-620LM
Performance Per Dollar Pentium G645
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-620LM | Pentium G645 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($300) | ✅ More affordable ($15) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i7-620LM | Pentium G645 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1882%) |
| Upfront Cost | ⚠️ Higher cost ($300) | ✅ More affordable ($15) |
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 i7-620LM and Pentium G645
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.
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.
Processing Power
The Core i7-620LM packs 2 cores / 4 threads, matching the Pentium G645's 2 cores. Boost clocks reach 2.8 GHz on the Core i7-620LM versus 2.9 GHz on the Pentium G645 — a 3.5% clock advantage for the Pentium G645 (base: 2 GHz vs 2.9 GHz). The Core i7-620LM uses the Arrandale (2010−2011) architecture (32 nm), while the Pentium G645 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i7-620LM scores 1,463 against the Pentium G645's 1,450 — a 0.9% lead for the Core i7-620LM. L3 cache: 4 MB (total) on the Core i7-620LM vs 3 MB (total) on the Pentium G645.
| Feature | Core i7-620LM | Pentium G645 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 2.8 GHz | 2.9 GHz+4% |
| Base Clock | 2 GHz | 2.9 GHz+45% |
| L3 Cache | 4 MB (total)+33% | 3 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Arrandale (2010−2011) | Sandy Bridge (2011−2013) |
| PassMark | 1,463 | 1,450 |
| Geekbench 6 Single | 450 | — |
| Geekbench 6 Multi | 900 | — |
Memory & Platform
The Core i7-620LM uses the BGA1288 socket (PCIe 2.0), while the Pentium G645 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i7-620LM | Pentium G645 |
|---|---|---|
| Socket | BGA1288 | LGA1155 |
| 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: VT-x, VT-d (Core i7-620LM) / not specified (Pentium G645). 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 | Core i7-620LM | Pentium G645 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Budget | — |
Value Analysis
The Core i7-620LM launched at $300 MSRP, while the Pentium G645 debuted at $80.
| Feature | Core i7-620LM | Pentium G645 |
|---|---|---|
| MSRP | $300 | $80-73% |
| Avg Price (30d) | — | $15 |
| Release Date | 2010 | 2012 |
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