Ryzen 9 3900X vs Ryzen 9 3900XT

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 9 3900X

2019

Why buy it

✅Better for gaming: +19.0% higher average FPS across 4 shared CPU benchmark tests.
✅Includes a boxed cooler (Wraith Prism), unlike Ryzen 9 3900XT.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Ryzen 9 3900XT

2020

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 4 shared CPU benchmark tests.
❌Lower Geekbench multi-core (10,500 vs 12,000).
❌No boxed cooler included, unlike Ryzen 9 3900X.

Ryzen 9 3900X

2019

Ryzen 9 3900XT

2020

Why buy it

✅Better for gaming: +19.0% higher average FPS across 4 shared CPU benchmark tests.
✅Includes a boxed cooler (Wraith Prism), unlike Ryzen 9 3900XT.

Why buy it

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3900X across 4 shared CPU benchmark tests.
❌Lower Geekbench multi-core (10,500 vs 12,000).
❌No boxed cooler included, unlike Ryzen 9 3900X.

Quick Answers

So, is Ryzen 9 3900X better than Ryzen 9 3900XT?

Yes. Ryzen 9 3900X is the better overall CPU here. You are getting a 19.0% average FPS lead across 4 shared CPU game tests in our data, 14.3% better Geekbench multi-core, and 0.0% higher PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 3900X is the better pick here. According to our tests, it delivers 19.0% more average FPS across 4 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 better fit. You are getting 14.3% better Geekbench multi-core, backed by 12 cores and 24 threads.

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

Ryzen 9 3900X is the smarter buy today. Ryzen 9 3900X is in basically the same MSRP band at $499 MSRP versus $499 MSRP, and it gives you a 19.0% average FPS lead across 4 shared CPU game tests in our data. It is also 0.0% better value on MSRP (65.2 vs 65.2 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen 9 3900XT is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019). That makes it the safer long-term pick.

Games Benchmarks

Paired with RTX 4090

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.

Ryzen 9 3900X Benchmark Check

Ryzen 9 3900XT Benchmark Check

Path of Exile 2

Preset	Ryzen 9 3900X	Ryzen 9 3900XT
1080p
low	209 FPS	177 FPS
medium	170 FPS	148 FPS
high	140 FPS	130 FPS
ultra	114 FPS	108 FPS
1440p
low	171 FPS	158 FPS
medium	131 FPS	126 FPS
high	104 FPS	104 FPS
ultra	86 FPS	86 FPS
4K
low	92 FPS	88 FPS
medium	77 FPS	75 FPS
high	61 FPS	60 FPS
ultra	49 FPS	48 FPS

Open Ryzen 9 3900X Open Ryzen 9 3900XT

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 3900X	Ryzen 9 3900XT
1080p
low	781 FPS	681 FPS
medium	654 FPS	578 FPS
high	510 FPS	433 FPS
ultra	447 FPS	372 FPS
1440p
low	648 FPS	562 FPS
medium	552 FPS	487 FPS
high	452 FPS	386 FPS
ultra	369 FPS	309 FPS
4K
low	380 FPS	332 FPS
medium	326 FPS	290 FPS
high	293 FPS	253 FPS
ultra	258 FPS	217 FPS

Open Ryzen 9 3900X Open Ryzen 9 3900XT

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 3900X	Ryzen 9 3900XT
1080p
low	813 FPS	813 FPS
medium	794 FPS	644 FPS
high	730 FPS	557 FPS
ultra	647 FPS	463 FPS
1440p
low	707 FPS	725 FPS
medium	583 FPS	564 FPS
high	522 FPS	487 FPS
ultra	459 FPS	410 FPS
4K
low	503 FPS	515 FPS
medium	403 FPS	422 FPS
high	361 FPS	374 FPS
ultra	292 FPS	310 FPS

Open Ryzen 9 3900X Open Ryzen 9 3900XT

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 3900X	Ryzen 9 3900XT
1080p
low	813 FPS	813 FPS
medium	813 FPS	813 FPS
high	813 FPS	813 FPS
ultra	813 FPS	756 FPS
1440p
low	813 FPS	813 FPS
medium	813 FPS	769 FPS
high	714 FPS	675 FPS
ultra	619 FPS	578 FPS
4K
low	669 FPS	635 FPS
medium	594 FPS	566 FPS
high	525 FPS	501 FPS
ultra	437 FPS	432 FPS

Open Ryzen 9 3900X Open Ryzen 9 3900XT

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 3900X and Ryzen 9 3900XT

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.

Ryzen 9 3900XT

The Ryzen 9 3900XT is manufactured by AMD. It was released in 7 July 2020 (5 years ago). It is based on the Matisse 2 (2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 32,512 points. Launch price was $499.

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Processing Power

Both the Ryzen 9 3900X and Ryzen 9 3900XT share an identical 12-core/24-thread configuration. Boost clocks reach 4.6 GHz on the Ryzen 9 3900X versus 4.7 GHz on the Ryzen 9 3900XT — a 2.2% clock advantage for the Ryzen 9 3900XT (base: 3.8 GHz vs 3.8 GHz). The Ryzen 9 3900X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 9 3900XT uses Matisse 2 (2020) (7 nm, 12 nm). In PassMark, the Ryzen 9 3900X scores 32,517 against the Ryzen 9 3900XT's 32,512 — a 0% lead for the Ryzen 9 3900X. Geekbench 6 single-core — the metric most relevant to gaming — records 1,300 vs 1,750, a 29.5% lead for the Ryzen 9 3900XT that directly translates to higher frame rates. Multi-core Geekbench: 12,000 vs 10,500 (13.3% advantage for the Ryzen 9 3900X). Both processors carry 64 MB of L3 cache.

Feature	Ryzen 9 3900X	Ryzen 9 3900XT
Cores / Threads	12 / 24	12 / 24
Boost Clock	4.6 GHz	4.7 GHz+2%
Base Clock	3.8 GHz	3.8 GHz
L3 Cache	64 MB	64 MB
L2 Cache	512K (per core)	512K (per core)
Process	7 nm, 12 nm	7 nm, 12 nm
Architecture	Matisse (Zen 2) (2019−2020)	Matisse 2 (2020)
PassMark	32,517	32,512
Cinebench R23 Multi	—	18,400
Geekbench 6 Single	1,300	1,750+35%
Geekbench 6 Multi	12,000+14%	10,500

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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: X570,B550 (Ryzen 9 3900X) and X570,B550,X470,B450 (Ryzen 9 3900XT).

Feature	Ryzen 9 3900X	Ryzen 9 3900XT
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	No
PCIe Lanes	24	24

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support AMD-V virtualization. Primary use case: Ryzen 9 3900X targets Workstation, Ryzen 9 3900XT targets Workstation / Enthusiast Gaming. Direct competitor: Ryzen 9 3900XT rivals Core i9-10900K.

Feature	Ryzen 9 3900X	Ryzen 9 3900XT
Integrated GPU	No	No
IGPU Model	None	—
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	AMD-V	AMD-V
Target Use	Workstation	Workstation / Enthusiast Gaming

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Value Analysis

The Ryzen 9 3900X launched at $499 MSRP, while the Ryzen 9 3900XT debuted at $499. On MSRP ($499 vs $499), the Ryzen 9 3900XT is $0 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 3900X delivers 65.2 pts/$ vs 65.2 pts/$ for the Ryzen 9 3900XT — making the Ryzen 9 3900X the 0% better value option.