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 5900X

2020

Why buy it

✅Better for gaming: +18.1% higher average FPS across 7 shared CPU benchmark tests.
✅Costs $3,441 less on MSRP ($549 MSRP vs $3,990 MSRP).
✅Delivers 254.4% more PassMark for each dollar spent, at 71.0 vs 20.0 PassMark/$ ($549 MSRP vs $3,990 MSRP).
✅Draws 105W instead of 280W, a 175W reduction.

Trade-offs

❌Lower Cinebench R23 multi-core (21,000 vs 64,366).
❌Smaller total L3 cache (64 MB vs 256 MB).
❌Less compelling for workstation-style loads than Ryzen Threadripper 3990X, which brings 64 cores / 128 threads and 88 PCIe lanes.

Ryzen Threadripper 3990X

2019

Why buy it

✅+206.5% higher Cinebench R23 multi-core.
✅+300% larger total L3 cache (256 MB vs 64 MB).
✅Better for workstations and heavier parallel workloads: 64 cores / 128 threads, plus 88 PCIe lanes vs 24.
✅266.7% more PCIe lanes (88 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 7 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 20.0 vs 71.0 PassMark/$ ($3,990 MSRP vs $549 MSRP).
❌166.7% higher power demand at 280W vs 105W.

Ryzen 9 5900X

2020

Ryzen Threadripper 3990X

2019

Why buy it

✅Better for gaming: +18.1% higher average FPS across 7 shared CPU benchmark tests.
✅Costs $3,441 less on MSRP ($549 MSRP vs $3,990 MSRP).
✅Delivers 254.4% more PassMark for each dollar spent, at 71.0 vs 20.0 PassMark/$ ($549 MSRP vs $3,990 MSRP).
✅Draws 105W instead of 280W, a 175W reduction.

Why buy it

✅+206.5% higher Cinebench R23 multi-core.
✅+300% larger total L3 cache (256 MB vs 64 MB).
✅Better for workstations and heavier parallel workloads: 64 cores / 128 threads, plus 88 PCIe lanes vs 24.
✅266.7% more PCIe lanes (88 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower Cinebench R23 multi-core (21,000 vs 64,366).
❌Smaller total L3 cache (64 MB vs 256 MB).
❌Less compelling for workstation-style loads than Ryzen Threadripper 3990X, which brings 64 cores / 128 threads and 88 PCIe lanes.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 7 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 20.0 vs 71.0 PassMark/$ ($3,990 MSRP vs $549 MSRP).
❌166.7% higher power demand at 280W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Ryzen Threadripper 3990X?

Not in a simple one-size-fits-all way. Ryzen Threadripper 3990X makes more sense for workstation-style multi-core throughput, while Ryzen 9 5900X is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Ryzen Threadripper 3990X is the better fit. You are getting 206.5% better Cinebench R23 multi-core, backed by 64 cores and 128 threads. It also carries the larger cache pool with 300% larger total L3 cache (256 MB vs 64 MB).

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

Ryzen 9 5900X is the smarter buy today. Ryzen 9 5900X is $3,441 cheaper on MSRP at $549 MSRP versus $3,990 MSRP, and it gives you a 18.1% average FPS lead across 7 shared CPU game tests in our data. The trade-off is that Ryzen Threadripper 3990X is still stronger for heavier multi-core work with 206.5% better Cinebench R23 multi-core. It is also 254.4% better value on MSRP (71.0 vs 20.0 PassMark/$), 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 5900X 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 5900X Benchmark Check

Ryzen Threadripper 3990X Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Ryzen Threadripper 3990X
1080p
low	323 FPS	181 FPS
medium	291 FPS	152 FPS
high	243 FPS	131 FPS
ultra	193 FPS	106 FPS
1440p
low	307 FPS	157 FPS
medium	248 FPS	125 FPS
high	192 FPS	102 FPS
ultra	157 FPS	83 FPS
4K
low	193 FPS	85 FPS
medium	156 FPS	72 FPS
high	115 FPS	57 FPS
ultra	103 FPS	46 FPS

Open Ryzen 9 5900X Open Ryzen Threadripper 3990X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Ryzen Threadripper 3990X
1080p
low	772 FPS	584 FPS
medium	647 FPS	503 FPS
high	508 FPS	386 FPS
ultra	450 FPS	330 FPS
1440p
low	619 FPS	491 FPS
medium	536 FPS	433 FPS
high	443 FPS	343 FPS
ultra	364 FPS	277 FPS
4K
low	365 FPS	308 FPS
medium	318 FPS	275 FPS
high	289 FPS	235 FPS
ultra	255 FPS	204 FPS

Open Ryzen 9 5900X Open Ryzen Threadripper 3990X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Ryzen Threadripper 3990X
1080p
low	832 FPS	681 FPS
medium	645 FPS	563 FPS
high	558 FPS	497 FPS
ultra	459 FPS	428 FPS
1440p
low	721 FPS	582 FPS
medium	565 FPS	488 FPS
high	488 FPS	427 FPS
ultra	407 FPS	368 FPS
4K
low	511 FPS	424 FPS
medium	421 FPS	338 FPS
high	374 FPS	293 FPS
ultra	308 FPS	234 FPS

Open Ryzen 9 5900X Open Ryzen Threadripper 3990X

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Ryzen Threadripper 3990X
1080p
low	974 FPS	942 FPS
medium	974 FPS	842 FPS
high	934 FPS	724 FPS
ultra	826 FPS	639 FPS
1440p
low	959 FPS	777 FPS
medium	843 FPS	677 FPS
high	726 FPS	580 FPS
ultra	617 FPS	502 FPS
4K
low	694 FPS	540 FPS
medium	621 FPS	489 FPS
high	541 FPS	429 FPS
ultra	437 FPS	373 FPS

Open Ryzen 9 5900X Open Ryzen Threadripper 3990X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Ryzen Threadripper 3990X

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 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: 38,955 points. Launch price was $549.

Ryzen Threadripper 3990X

The Ryzen Threadripper 3990X is manufactured by AMD. It was released in 7 February 2020 (5 years ago). It is based on the Matisse (2019−2020) architecture. It features 64 cores and 128 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 256 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: TR4. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 79,889 points. Launch price was $3,999.

⚡

Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Ryzen Threadripper 3990X offers 64 cores / 128 threads — the Ryzen Threadripper 3990X has 52 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 4.3 GHz on the Ryzen Threadripper 3990X — a 11% clock advantage for the Ryzen 9 5900X (base: 3.7 GHz vs 2.9 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Ryzen Threadripper 3990X uses Matisse (2019−2020) (7 nm, 12 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Ryzen Threadripper 3990X's 79,889 — a 68.9% lead for the Ryzen Threadripper 3990X. Cinebench R23 multi-core: 21,000 vs 64,366 (101.6% advantage for the Ryzen Threadripper 3990X). Geekbench 6 single-core — the metric most relevant to gaming — records 2,174 vs 1,961, a 10.3% lead for the Ryzen 9 5900X that directly translates to higher frame rates. Multi-core Geekbench: 11,888 vs 22,045 (59.9% advantage for the Ryzen Threadripper 3990X). L3 cache: 64 MB on the Ryzen 9 5900X vs 256 MB on the Ryzen Threadripper 3990X.

Feature	Ryzen 9 5900X	Ryzen Threadripper 3990X
Cores / Threads	12 / 24	64 / 128+433%
Boost Clock	4.8 GHz+12%	4.3 GHz
Base Clock	3.7 GHz+28%	2.9 GHz
L3 Cache	64 MB	256 MB+300%
L2 Cache	512K (per core)	512K (per core)
Process	7 nm, 12 nm	7 nm, 12 nm
Architecture	Vermeer (Zen3) (2020−2022)	Matisse (2019−2020)
PassMark	38,955	79,889+105%
Cinebench R23 Multi	21,000	64,366+207%
Geekbench 6 Single	2,174+11%	1,961
Geekbench 6 Multi	11,888	22,045+85%

🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Ryzen Threadripper 3990X uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Ryzen Threadripper 3990X supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 4 (Ryzen Threadripper 3990X). PCIe lanes: 24 (Ryzen 9 5900X) vs 88 (Ryzen Threadripper 3990X) — the Ryzen Threadripper 3990X offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and TRX40 (Ryzen Threadripper 3990X).

Feature	Ryzen 9 5900X	Ryzen Threadripper 3990X
Socket	AM4	TR4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	DDR4-3200
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	4+100%
ECC Support	Yes	Yes
PCIe Lanes	24	88+267%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Virtualization support: AMD-V (Ryzen 9 5900X) vs true (Ryzen Threadripper 3990X). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Ryzen Threadripper 3990X rivals Core i9-10980XE.

Feature	Ryzen 9 5900X	Ryzen Threadripper 3990X
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	AMD-V	true
Target Use	Workstation	—

💰

Value Analysis

The Ryzen 9 5900X launched at $549 MSRP, while the Ryzen Threadripper 3990X debuted at $3990. On MSRP ($549 vs $3990), the Ryzen 9 5900X is $3441 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 20.0 pts/$ for the Ryzen Threadripper 3990X — making the Ryzen 9 5900X the 112% better value option.