Athlon II X4 645 vs Ryzen 5 7600X
Athlon II X4 645
Popular choices:
Ryzen 5 7600X
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 Athlon II X4 645 is positioned at rank #819 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 Athlon II X4 645
Performance Per Dollar Ryzen 5 7600X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X4 645 | Ryzen 5 7600X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($20) | ⚠️ Higher cost ($178) |
| Longevity | 🛑 Legacy (Propus (2009−2011) / 45 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | Athlon II X4 645 | Ryzen 5 7600X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+34%) |
| Upfront Cost | ✅ More affordable ($20) | ⚠️ Higher cost ($178) |
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 Athlon II X4 645 and Ryzen 5 7600X
Athlon II X4 645
The Athlon II X4 645 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,375 points. Launch price was $80.
Ryzen 5 7600X
The Ryzen 5 7600X is manufactured by AMD. It was released in 27 September 2022 (3 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 6 cores and 12 threads. Base frequency is 4.7 GHz, with boost up to 5.3 GHz. L3 cache: 32 MB (total). L2 cache: 6 MB. Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 105 Watt. Memory support: DDR5-5200. Passmark benchmark score: 28,325 points. Launch price was $299.
Processing Power
The Athlon II X4 645 packs 4 cores / 4 threads, while the Ryzen 5 7600X offers 6 cores / 12 threads — the Ryzen 5 7600X has 2 more cores. Boost clocks reach 3.1 GHz on the Athlon II X4 645 versus 5.3 GHz on the Ryzen 5 7600X — a 52.4% clock advantage for the Ryzen 5 7600X (base: 3.1 GHz vs 4.7 GHz). The Athlon II X4 645 uses the Propus (2009−2011) architecture (45 nm), while the Ryzen 5 7600X uses Raphael (Zen4) (2022−2023) (5 nm, 6 nm). In PassMark, the Athlon II X4 645 scores 2,375 against the Ryzen 5 7600X's 28,325 — a 169.1% lead for the Ryzen 5 7600X. Cinebench R23 multi-core: 1,374 vs 15,300 (167% advantage for the Ryzen 5 7600X). Geekbench 6 single-core — the metric most relevant to gaming — records 399 vs 2,900, a 151.6% lead for the Ryzen 5 7600X that directly translates to higher frame rates. Multi-core Geekbench: 1,374 vs 13,800 (163.8% advantage for the Ryzen 5 7600X). L3 cache: 0 kB on the Athlon II X4 645 vs 32 MB (total) on the Ryzen 5 7600X.
| Feature | Athlon II X4 645 | Ryzen 5 7600X |
|---|---|---|
| Cores / Threads | 4 / 4 | 6 / 12+50% |
| Boost Clock | 3.1 GHz | 5.3 GHz+71% |
| Base Clock | 3.1 GHz | 4.7 GHz+52% |
| L3 Cache | 0 kB | 32 MB (total) |
| L2 Cache | 512 kB (per core) | 6 MB+1100% |
| Process | 45 nm | 5 nm, 6 nm-89% |
| Architecture | Propus (2009−2011) | Raphael (Zen4) (2022−2023) |
| PassMark | 2,375 | 28,325+1093% |
| Cinebench R23 Multi | 1,374 | 15,300+1014% |
| Geekbench 6 Single | 399 | 2,900+627% |
| Geekbench 6 Multi | 1,374 | 13,800+904% |
Memory & Platform
The Athlon II X4 645 uses the AM3 socket (PCIe 2.0), while the Ryzen 5 7600X uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Athlon II X4 645 versus DDR5-5200 on the Ryzen 5 7600X — the Ryzen 5 7600X supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 7600X supports up to 128 GB of RAM compared to 16 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Athlon II X4 645) vs 28 (Ryzen 5 7600X) — the Ryzen 5 7600X offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 700 Series,AMD 800 Series,AMD 900 Series (Athlon II X4 645) and X670E,X670,B650E,B650,A620 (Ryzen 5 7600X).
| Feature | Athlon II X4 645 | Ryzen 5 7600X |
|---|---|---|
| Socket | AM3 | AM5 |
| PCIe Generation | PCIe 2.0 | PCIe 5.0+150% |
| Max RAM Speed | DDR3-1333 | DDR5-5200+67% |
| Max RAM Capacity | 16 GB | 128 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16 | 28+75% |
Advanced Features
Only the Ryzen 5 7600X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: Yes (Athlon II X4 645) vs AMD-V (Ryzen 5 7600X). The Ryzen 5 7600X includes integrated graphics (AMD Radeon Graphics (2-core)), while the Athlon II X4 645 requires a dedicated GPU. Primary use case: Athlon II X4 645 targets Desktop, Ryzen 5 7600X targets Gaming. Direct competitor: Ryzen 5 7600X rivals Intel Core i5-13600K.
| Feature | Athlon II X4 645 | Ryzen 5 7600X |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | AMD Radeon Graphics (2-core) |
| Unlocked | — | Yes |
| AVX-512 | No | Yes |
| Virtualization | Yes | AMD-V |
| Target Use | Desktop | Gaming |
Value Analysis
The Athlon II X4 645 launched at $126 MSRP, while the Ryzen 5 7600X debuted at $299. At current prices ($20 vs $178), the Athlon II X4 645 is $158 cheaper. In terms of value (PassMark points per dollar), the Athlon II X4 645 delivers 118.8 pts/$ vs 159.1 pts/$ for the Ryzen 5 7600X — making the Ryzen 5 7600X the 29.1% better value option.
| Feature | Athlon II X4 645 | Ryzen 5 7600X |
|---|---|---|
| MSRP | $126-58% | $299 |
| Avg Price (30d) | $20-89% | $178 |
| Performance per Dollar | 118.8 | 159.1+34% |
| Release Date | 2010 | 2022 |
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