
Ryzen 7 5700X
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Ryzen 9 3900X
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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.
Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook
This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.
Ryzen 7 5700X
2022Why buy it
- ✅Costs $200 less on MSRP ($299 MSRP vs $499 MSRP).
- ✅Delivers 36.6% more PassMark for each dollar spent, at 89.0 vs 65.2 PassMark/$ ($299 MSRP vs $499 MSRP).
- ✅Draws 65W instead of 105W, a 40W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 3 shared CPU benchmark tests.
- ❌Lower Geekbench multi-core (9,715 vs 12,000).
- ❌Smaller total L3 cache (32 MB vs 64 MB).
- ❌No boxed cooler included, unlike Ryzen 9 3900X.
Ryzen 9 3900X
2019Why buy it
- ✅Better for gaming: +14.7% higher average FPS across 3 shared CPU benchmark tests.
- ✅+100% larger total L3 cache (64 MB vs 32 MB).
- ✅Includes a boxed cooler (Wraith Prism), unlike Ryzen 7 5700X.
Trade-offs
- ❌Lower PassMark per dollar, at 65.2 vs 89.0 PassMark/$ ($499 MSRP vs $299 MSRP).
- ❌61.5% higher power demand at 105W vs 65W.
Ryzen 7 5700X
2022Ryzen 9 3900X
2019Why buy it
- ✅Costs $200 less on MSRP ($299 MSRP vs $499 MSRP).
- ✅Delivers 36.6% more PassMark for each dollar spent, at 89.0 vs 65.2 PassMark/$ ($299 MSRP vs $499 MSRP).
- ✅Draws 65W instead of 105W, a 40W reduction.
Why buy it
- ✅Better for gaming: +14.7% higher average FPS across 3 shared CPU benchmark tests.
- ✅+100% larger total L3 cache (64 MB vs 32 MB).
- ✅Includes a boxed cooler (Wraith Prism), unlike Ryzen 7 5700X.
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 3 shared CPU benchmark tests.
- ❌Lower Geekbench multi-core (9,715 vs 12,000).
- ❌Smaller total L3 cache (32 MB vs 64 MB).
- ❌No boxed cooler included, unlike Ryzen 9 3900X.
Trade-offs
- ❌Lower PassMark per dollar, at 65.2 vs 89.0 PassMark/$ ($499 MSRP vs $299 MSRP).
- ❌61.5% higher power demand at 105W vs 65W.
Quick Answers
So, is Ryzen 9 3900X better than Ryzen 7 5700X?
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?
Games Benchmarks
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.

Path of Exile 2
| Preset | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| 1080p | ||
| low | 156 FPS | 209 FPS |
| medium | 129 FPS | 170 FPS |
| high | 115 FPS | 140 FPS |
| ultra | 94 FPS | 114 FPS |
| 1440p | ||
| low | 137 FPS | 171 FPS |
| medium | 111 FPS | 131 FPS |
| high | 95 FPS | 104 FPS |
| ultra | 78 FPS | 86 FPS |
| 4K | ||
| low | 77 FPS | 92 FPS |
| medium | 67 FPS | 77 FPS |
| high | 55 FPS | 61 FPS |
| ultra | 43 FPS | 49 FPS |

Counter-Strike 2
| Preset | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| 1080p | ||
| low | 649 FPS | 781 FPS |
| medium | 549 FPS | 654 FPS |
| high | 448 FPS | 510 FPS |
| ultra | 404 FPS | 447 FPS |
| 1440p | ||
| low | 552 FPS | 648 FPS |
| medium | 484 FPS | 552 FPS |
| high | 407 FPS | 452 FPS |
| ultra | 350 FPS | 369 FPS |
| 4K | ||
| low | 343 FPS | 380 FPS |
| medium | 303 FPS | 326 FPS |
| high | 277 FPS | 293 FPS |
| ultra | 245 FPS | 258 FPS |

League of Legends
| Preset | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| 1080p | ||
| low | 665 FPS | 813 FPS |
| medium | 557 FPS | 794 FPS |
| high | 509 FPS | 730 FPS |
| ultra | 439 FPS | 647 FPS |
| 1440p | ||
| low | 554 FPS | 707 FPS |
| medium | 458 FPS | 583 FPS |
| high | 419 FPS | 522 FPS |
| ultra | 358 FPS | 459 FPS |
| 4K | ||
| low | 402 FPS | 503 FPS |
| medium | 322 FPS | 403 FPS |
| high | 292 FPS | 361 FPS |
| ultra | 229 FPS | 292 FPS |

Valorant
| Preset | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| 1080p | ||
| low | 665 FPS | 813 FPS |
| medium | 665 FPS | 813 FPS |
| high | 665 FPS | 813 FPS |
| ultra | 665 FPS | 813 FPS |
| 1440p | ||
| low | 665 FPS | 813 FPS |
| medium | 665 FPS | 813 FPS |
| high | 607 FPS | 714 FPS |
| ultra | 533 FPS | 619 FPS |
| 4K | ||
| low | 545 FPS | 669 FPS |
| medium | 488 FPS | 594 FPS |
| high | 439 FPS | 525 FPS |
| ultra | 385 FPS | 437 FPS |
Technical Specifications
Side-by-side comparison of Ryzen 7 5700X and Ryzen 9 3900X


Ryzen 7 5700X
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.


Ryzen 9 3900X
Ryzen 9 3900X
The Ryzen 9 3900X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.8 GHz, with boost up to 4.6 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 125 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 32,517 points. Launch price was $499.
Processing Power
The Ryzen 7 5700X packs 8 cores / 16 threads, while the Ryzen 9 3900X offers 12 cores / 24 threads — the Ryzen 9 3900X has 4 more cores. Boost clocks reach 4.6 GHz on the Ryzen 7 5700X versus 4.6 GHz on the Ryzen 9 3900X — identical boost frequencies (base: 3.4 GHz vs 3.8 GHz). The Ryzen 7 5700X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm), while the Ryzen 9 3900X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Ryzen 7 5700X scores 26,609 against the Ryzen 9 3900X's 32,517 — a 20% lead for the Ryzen 9 3900X. Geekbench 6 single-core — the metric most relevant to gaming — records 2,116 vs 1,300, a 47.8% lead for the Ryzen 7 5700X that directly translates to higher frame rates. Multi-core Geekbench: 9,715 vs 12,000 (21% advantage for the Ryzen 9 3900X). L3 cache: 32 MB (total) on the Ryzen 7 5700X vs 64 MB on the Ryzen 9 3900X.
| Feature | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| Cores / Threads | 8 / 16 | 12 / 24+50% |
| Boost Clock | 4.6 GHz | 4.6 GHz |
| Base Clock | 3.4 GHz | 3.8 GHz+12% |
| L3 Cache | 32 MB (total) | 64 MB+100% |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 7 nm | 7 nm, 12 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Matisse (Zen 2) (2019−2020) |
| PassMark | 26,609 | 32,517+22% |
| Cinebench R23 Multi | 14,000 | — |
| Geekbench 6 Single | 2,116+63% | 1,300 |
| Geekbench 6 Multi | 9,715 | 12,000+24% |
Memory & Platform
Both processors use the AM4 socket with PCIe 4.0. Both support up to DDR4-3200 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 24 PCIe lanes. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 7 5700X) and X570,B550 (Ryzen 9 3900X).
| Feature | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| Socket | AM4 | AM4 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR4-3200 | DDR4-3200 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | Yes | Yes |
| PCIe Lanes | 24 | 24 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AMD-V virtualization. Primary use case: Ryzen 7 5700X targets Gaming, Ryzen 9 3900X targets Workstation. Direct competitor: Ryzen 7 5700X rivals Core i7-11700K.
| Feature | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | Yes | Yes |
| AVX-512 | No | No |
| Virtualization | AMD-V | AMD-V |
| Target Use | Gaming | Workstation |
Value Analysis
The Ryzen 7 5700X launched at $299 MSRP, while the Ryzen 9 3900X debuted at $499. On MSRP ($299 vs $499), the Ryzen 7 5700X is $200 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 7 5700X delivers 89.0 pts/$ vs 65.2 pts/$ for the Ryzen 9 3900X — making the Ryzen 7 5700X the 30.9% better value option.
| Feature | Ryzen 7 5700X | Ryzen 9 3900X |
|---|---|---|
| MSRP | $299-40% | $499 |
| Performance per Dollar | 89.0+37% | 65.2 |
| Release Date | 2022 | 2019 |
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