Ryzen 7 5700X vs Ryzen 9 3900X

CPU

GPU

Ryzen 7 5700X

8 Cores16 Thrd65 WWMax: 4.6 GHz2022

Ryzen family

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Ryzen 9 3900X

12 Cores24 Thrd105 WWMax: 4.6 GHz2019

Ryzen family

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Ryzen 7 5700X vs Ryzen 9 3900X Performance Spectrum

Ryzen 7 5700X

8 / 16

26,609

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen Threadripper 9960X

Ryzen 9 3900X

12 / 24

32,517

+22.2%

Ryzen Threadripper PRO 5955WX

Ryzen 9 9950X

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper PRO 7975WX

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.

Ryzen 7 5700X vs Ryzen 9 3900X 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.

Ryzen 7 5700X vs Ryzen 9 3900X: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Ryzen 7 5700X

2022

Why 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 50 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

2019

Why buy it

✅Better for gaming: +20.2% higher average FPS across 50 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.

Quick Answers

So, is Ryzen 9 3900X better than Ryzen 7 5700X?

Yes. Ryzen 9 3900X is the better all-around CPU here. It gives you a 20.2% average FPS lead across 50 shared CPU game tests in our data, 23.5% better Geekbench multi-core, and 22.2% higher PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 3900X is the better pick. According to our tests, it delivers 20.2% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 9 3900X is the stronger fit. You are getting 23.5% better Geekbench multi-core, backed by 12 cores and 24 threads. It also has the larger cache pool with 100% larger total L3 cache (64 MB vs 32 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 9 3900X is still the faster CPU overall, but Ryzen 7 5700X is easier to justify if budget matters more than peak performance. Ryzen 9 3900X comes in 66.9% more expensive on MSRP at $499 MSRP versus $299 MSRP, and it still gives you a 20.2% average FPS lead across 50 shared CPU game tests in our data. Ryzen 7 5700X is also 36.6% better value on MSRP (89.0 vs 65.2 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

Which one is more future-proof for 2026 and beyond?

Ryzen 7 5700X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2019). That makes it the safer long-term bet.

Ryzen 7 5700X vs Ryzen 9 3900X Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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

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.

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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%

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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

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Value Analysis

At launch, the Ryzen 7 5700X was priced at $299, while the Ryzen 9 3900X came in at $499. On launch pricing ($299 vs $499), Ryzen 7 5700X was $200 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 7 5700X delivers 89.0 pts/$ 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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