Pentium G645 vs A8-3520M
Pentium G645
A8-3520M
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 A8-3520M is on rank 806, so the A8-3520M 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 A8-3520M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium G645 | A8-3520M |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Llano (2011−2012) / 32 nm) |
💎 Value Proposition
| Insight | Pentium G645 | A8-3520M |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
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 A8-3520M
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.
A8-3520M
The A8-3520M is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.5 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FS1. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,441 points. Launch price was $90.
Processing Power
The Pentium G645 packs 2 cores / 2 threads, while the A8-3520M offers 4 cores / 4 threads — the A8-3520M has 2 more cores. Boost clocks reach 2.9 GHz on the Pentium G645 versus 2.5 GHz on the A8-3520M — a 14.8% clock advantage for the Pentium G645 (base: 2.9 GHz vs 1.6 GHz). The Pentium G645 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the A8-3520M uses Llano (2011−2012) (32 nm). In PassMark, the Pentium G645 scores 1,450 against the A8-3520M's 1,441 — a 0.6% lead for the Pentium G645. L3 cache: 3 MB (total) on the Pentium G645 vs 0 kB on the A8-3520M.
| Feature | Pentium G645 | A8-3520M |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 2.9 GHz+16% | 2.5 GHz |
| Base Clock | 2.9 GHz+81% | 1.6 GHz |
| L3 Cache | 3 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 1 MB (per core)+300% |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Llano (2011−2012) |
| PassMark | 1,450 | 1,441 |
| Geekbench 6 Single | — | 255 |
Memory & Platform
The Pentium G645 uses the LGA1155 socket (PCIe 2.0), while the A8-3520M uses FS1 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium G645 | A8-3520M |
|---|---|---|
| Socket | LGA1155 | FS1 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 16 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 20 |
Advanced Features
Virtualization: not specified (Pentium G645) / AMD-V (A8-3520M). The A8-3520M includes integrated graphics (Radeon HD 6620G), while the Pentium G645 requires a dedicated GPU. Primary use case: A8-3520M targets Budget Laptop. Direct competitor: A8-3520M rivals Core i3-2330M.
| Feature | Pentium G645 | A8-3520M |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Radeon HD 6620G |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Budget Laptop |
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