Athlon II X4 645
Ryzen 7 5700X
Athlon II X4 645 vs Ryzen 7 5700X Performance Spectrum
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.
Athlon II X4 645 vs Ryzen 7 5700X FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Athlon II X4 645 vs Ryzen 7 5700X: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Athlon II X4 645
2010Why buy it
- ✅Costs $173 less on MSRP ($126 MSRP vs $299 MSRP).
- ✅Includes a boxed cooler (Yes), unlike Ryzen 7 5700X.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 7 5700X across 50 shared CPU benchmark tests.
- ❌Lower Cinebench R23 multi-core (1,374 vs 14,000).
- ❌Lower PassMark per dollar, at 18.8 vs 89.0 PassMark/$ ($126 MSRP vs $299 MSRP).
- ❌46.2% higher power demand at 95W vs 65W.
Ryzen 7 5700X
2022Why buy it
- ✅Better for gaming: +336.2% higher average FPS across 50 shared CPU benchmark tests.
- ✅Delivers 372.1% more PassMark for each dollar spent, at 89.0 vs 18.8 PassMark/$ ($299 MSRP vs $126 MSRP).
- ✅Draws 65W instead of 95W, a 30W reduction.
- ✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.
Trade-offs
- ❌137.3% HIGHER MSRP$299 MSRPvs$126 MSRP
- ❌No boxed cooler included, unlike Athlon II X4 645.
Quick Answers
So, is Ryzen 7 5700X better than Athlon II X4 645?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Athlon II X4 645 vs Ryzen 7 5700X Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
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 7 5700X
The Ryzen 7 5700X is manufactured by AMD. It was released in 4 April 2022 (3 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.4 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 26,609 points. Launch price was $299.
Processing Power
The Athlon II X4 645 packs 4 cores / 4 threads, while the Ryzen 7 5700X offers 8 cores / 16 threads — the Ryzen 7 5700X has 4 more cores. Boost clocks reach 3.1 GHz on the Athlon II X4 645 versus 4.6 GHz on the Ryzen 7 5700X — a 39% clock advantage for the Ryzen 7 5700X (base: 3.1 GHz vs 3.4 GHz). The Athlon II X4 645 uses the Propus (2009−2011) architecture (45 nm), while the Ryzen 7 5700X uses Vermeer (Zen 3) (2020−2022) (7 nm). In PassMark, the Athlon II X4 645 scores 2,375 against the Ryzen 7 5700X's 26,609 — a 167.2% lead for the Ryzen 7 5700X. Cinebench R23 multi-core: 1,374 vs 14,000 (164.3% advantage for the Ryzen 7 5700X). Geekbench 6 single-core — the metric most relevant to gaming — records 399 vs 2,116, a 136.5% lead for the Ryzen 7 5700X that directly translates to higher frame rates. Multi-core Geekbench: 1,374 vs 9,715 (150.4% advantage for the Ryzen 7 5700X). L3 cache: 0 kB on the Athlon II X4 645 vs 32 MB (total) on the Ryzen 7 5700X.
| Feature | Athlon II X4 645 | Ryzen 7 5700X |
|---|---|---|
| Cores / Threads | 4 / 4 | 8 / 16+100% |
| Boost Clock | 3.1 GHz | 4.6 GHz+48% |
| Base Clock | 3.1 GHz | 3.4 GHz+10% |
| L3 Cache | 0 kB | 32 MB (total) |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 45 nm | 7 nm-84% |
| Architecture | Propus (2009−2011) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 2,375 | 26,609+1020% |
| Cinebench R23 Multi | 1,374 | 14,000+919% |
| Geekbench 6 Single | 399 | 2,116+430% |
| Geekbench 6 Multi | 1,374 | 9,715+607% |
Memory & Platform
The Athlon II X4 645 uses the AM3 socket (PCIe 2.0), while the Ryzen 7 5700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Athlon II X4 645 versus DDR4-3200 on the Ryzen 7 5700X — the Ryzen 7 5700X supports 140.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5700X supports up to 128 GB of RAM compared to 16 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Athlon II X4 645) vs 24 (Ryzen 7 5700X) — the Ryzen 7 5700X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 700 Series,AMD 800 Series,AMD 900 Series (Athlon II X4 645) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 7 5700X).
| Feature | Athlon II X4 645 | Ryzen 7 5700X |
|---|---|---|
| Socket | AM3 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | DDR3-1333 | DDR4-3200+140% |
| Max RAM Capacity | 16 GB | 128 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | No | Yes |
| PCIe Lanes | 16 | 24+50% |
Advanced Features
Virtualization support: Yes (Athlon II X4 645) vs AMD-V (Ryzen 7 5700X). Primary use case: Athlon II X4 645 targets Desktop, Ryzen 7 5700X targets Gaming. Direct competitor: Ryzen 7 5700X rivals Core i7-11700K.
| Feature | Athlon II X4 645 | Ryzen 7 5700X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | Yes |
| AVX-512 | No | No |
| Virtualization | Yes | AMD-V |
| Target Use | Desktop | Gaming |
Value Analysis
At launch, the Athlon II X4 645 was priced at $126, while the Ryzen 7 5700X came in at $299. On launch pricing ($126 vs $299), Athlon II X4 645 was $173 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X4 645 delivers 18.8 pts/$ vs 89.0 pts/$ for the Ryzen 7 5700X — making the Ryzen 7 5700X the 130.1% better value option.
| Feature | Athlon II X4 645 | Ryzen 7 5700X |
|---|---|---|
| MSRP | $126-58% | $299 |
| Performance per Dollar | 18.8 | 89.0+373% |
| Release Date | 2010 | 2022 |
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