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 Threadripper 3990X

2019

Why buy it

✅+7.3% higher Cinebench R23 multi-core.
✅+162.6% larger total L3 cache (256 MB vs 98 MB).
✅Draws 280W instead of 340W, a 60W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w9-3575X across 48 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 20.0 vs 21.8 PassMark/$ ($3,990 MSRP vs $3,789 MSRP).
❌Older platform position on TR4 with DDR4, while Xeon w9-3575X moves to LGA4677 and DDR5.

Xeon w9-3575X

2024

Why buy it

✅Better for gaming: +4.5% higher average FPS across 48 shared CPU benchmark tests.
✅Costs $201 less on MSRP ($3,789 MSRP vs $3,990 MSRP).
✅Delivers 8.8% more PassMark for each dollar spent, at 21.8 vs 20.0 PassMark/$ ($3,789 MSRP vs $3,990 MSRP).
✅Newer platform on LGA4677 with DDR5 support instead of TR4 and DDR4.
✅27.3% more PCIe lanes (112 vs 88) for storage and expansion-heavy builds.

Trade-offs

❌Lower Cinebench R23 multi-core (60,000 vs 64,366).
❌Smaller total L3 cache (98 MB vs 256 MB).
❌21.4% higher power demand at 340W vs 280W.

Ryzen Threadripper 3990X

2019

Xeon w9-3575X

2024

Why buy it

✅+7.3% higher Cinebench R23 multi-core.
✅+162.6% larger total L3 cache (256 MB vs 98 MB).
✅Draws 280W instead of 340W, a 60W reduction.

Why buy it

✅Better for gaming: +4.5% higher average FPS across 48 shared CPU benchmark tests.
✅Costs $201 less on MSRP ($3,789 MSRP vs $3,990 MSRP).
✅Delivers 8.8% more PassMark for each dollar spent, at 21.8 vs 20.0 PassMark/$ ($3,789 MSRP vs $3,990 MSRP).
✅Newer platform on LGA4677 with DDR5 support instead of TR4 and DDR4.
✅27.3% more PCIe lanes (112 vs 88) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w9-3575X across 48 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 20.0 vs 21.8 PassMark/$ ($3,990 MSRP vs $3,789 MSRP).
❌Older platform position on TR4 with DDR4, while Xeon w9-3575X moves to LGA4677 and DDR5.

Trade-offs

❌Lower Cinebench R23 multi-core (60,000 vs 64,366).
❌Smaller total L3 cache (98 MB vs 256 MB).
❌21.4% higher power demand at 340W vs 280W.

Quick Answers

So, is Xeon w9-3575X better than Ryzen Threadripper 3990X?

It depends on what matters more to you. For gaming, Xeon w9-3575X is ahead with a 4.5% average FPS lead across 48 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen Threadripper 3990X pulls ahead with 7.3% better Cinebench R23 multi-core. Ryzen Threadripper 3990X also has the bigger cache pool with 162.6% larger total L3 cache (256 MB vs 98 MB).

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 7.3% better Cinebench R23 multi-core, backed by 64 cores and 128 threads. It also carries the larger cache pool with 162.6% larger total L3 cache (256 MB vs 98 MB).

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

Xeon w9-3575X is the smarter buy today. Xeon w9-3575X is $201 cheaper on MSRP at $3,789 MSRP versus $3,990 MSRP, and it gives you a 4.5% average FPS lead across 48 shared CPU game tests in our data. The trade-off is that Ryzen Threadripper 3990X is still stronger for heavier multi-core work with 7.3% better Cinebench R23 multi-core. It is also 8.8% better value on MSRP (21.8 vs 20.0 PassMark/$), 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?

Xeon w9-3575X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2019), a healthier platform with LGA4677 and DDR5 instead of TR4, and AVX-512 support for heavier modern compute workloads. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 Threadripper 3990X Benchmark Check

Xeon w9-3575X Benchmark Check

Path of Exile 2

Preset	Ryzen Threadripper 3990X	Xeon w9-3575X
1080p
low	181 FPS	316 FPS
medium	152 FPS	306 FPS
high	131 FPS	246 FPS
ultra	106 FPS	207 FPS
1440p
low	157 FPS	274 FPS
medium	125 FPS	237 FPS
high	102 FPS	178 FPS
ultra	83 FPS	157 FPS
4K
low	85 FPS	186 FPS
medium	72 FPS	159 FPS
high	57 FPS	120 FPS
ultra	46 FPS	108 FPS

Open Ryzen Threadripper 3990X Open Xeon w9-3575X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen Threadripper 3990X	Xeon w9-3575X
1080p
low	584 FPS	384 FPS
medium	503 FPS	332 FPS
high	386 FPS	270 FPS
ultra	330 FPS	236 FPS
1440p
low	491 FPS	308 FPS
medium	433 FPS	273 FPS
high	343 FPS	232 FPS
ultra	277 FPS	190 FPS
4K
low	308 FPS	181 FPS
medium	275 FPS	162 FPS
high	235 FPS	151 FPS
ultra	204 FPS	133 FPS

Open Ryzen Threadripper 3990X Open Xeon w9-3575X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen Threadripper 3990X	Xeon w9-3575X
1080p
low	681 FPS	1025 FPS
medium	563 FPS	1086 FPS
high	497 FPS	1020 FPS
ultra	428 FPS	875 FPS
1440p
low	582 FPS	1009 FPS
medium	488 FPS	913 FPS
high	427 FPS	839 FPS
ultra	368 FPS	656 FPS
4K
low	424 FPS	605 FPS
medium	338 FPS	521 FPS
high	293 FPS	465 FPS
ultra	234 FPS	400 FPS

Open Ryzen Threadripper 3990X Open Xeon w9-3575X

League of Legends

League of Legends

Valorant

Preset	Ryzen Threadripper 3990X	Xeon w9-3575X
1080p
low	942 FPS	1160 FPS
medium	842 FPS	1015 FPS
high	724 FPS	915 FPS
ultra	639 FPS	814 FPS
1440p
low	777 FPS	940 FPS
medium	677 FPS	823 FPS
high	580 FPS	727 FPS
ultra	502 FPS	638 FPS
4K
low	540 FPS	687 FPS
medium	489 FPS	613 FPS
high	429 FPS	551 FPS
ultra	373 FPS	437 FPS

Open Ryzen Threadripper 3990X Open Xeon w9-3575X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen Threadripper 3990X and Xeon w9-3575X

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.

Xeon w9-3575X

The Xeon w9-3575X is manufactured by Intel. It was released in 24 August 2024 (1 year ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 44 cores and 88 threads. Base frequency is 2.2 GHz, with boost up to 4.8 GHz. L3 cache: 97.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 340 Watt. Memory support: DDR5-4800. Passmark benchmark score: 82,507 points. Launch price was $3,789.

⚡

Processing Power

The Ryzen Threadripper 3990X packs 64 cores / 128 threads, while the Xeon w9-3575X offers 44 cores / 88 threads — the Ryzen Threadripper 3990X has 20 more cores. Boost clocks reach 4.3 GHz on the Ryzen Threadripper 3990X versus 4.8 GHz on the Xeon w9-3575X — a 11% clock advantage for the Xeon w9-3575X (base: 2.9 GHz vs 2.2 GHz). The Ryzen Threadripper 3990X uses the Matisse (2019−2020) architecture (7 nm, 12 nm), while the Xeon w9-3575X uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen Threadripper 3990X scores 79,889 against the Xeon w9-3575X's 82,507 — a 3.2% lead for the Xeon w9-3575X. Cinebench R23 multi-core: 64,366 vs 60,000 (7% advantage for the Ryzen Threadripper 3990X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,961 vs 2,300, a 15.9% lead for the Xeon w9-3575X that directly translates to higher frame rates. Multi-core Geekbench: 22,045 vs 19,320 (13.2% advantage for the Ryzen Threadripper 3990X). L3 cache: 256 MB on the Ryzen Threadripper 3990X vs 97.5 MB on the Xeon w9-3575X.

Feature	Ryzen Threadripper 3990X	Xeon w9-3575X
Cores / Threads	64 / 128+45%	44 / 88
Boost Clock	4.3 GHz	4.8 GHz+12%
Base Clock	2.9 GHz+32%	2.2 GHz
L3 Cache	256 MB+163%	97.5 MB
L2 Cache	512K (per core)	2 MB (per core)+300%
Process	7 nm, 12 nm	Intel 7 nm
Architecture	Matisse (2019−2020)	Sapphire Rapids (2023−2024)
PassMark	79,889	82,507+3%
Cinebench R23 Multi	64,366+7%	60,000
Geekbench 6 Single	1,961	2,300+17%
Geekbench 6 Multi	22,045+14%	19,320

🧠

Memory & Platform

The Ryzen Threadripper 3990X uses the TR4 socket (PCIe 4.0), while the Xeon w9-3575X uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen Threadripper 3990X versus DDR5-4800 on the Xeon w9-3575X — the Xeon w9-3575X supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w9-3575X supports up to 4096 GB of RAM compared to 256 GB — 176.5% more capacity for professional workloads. Memory channels: 4 (Ryzen Threadripper 3990X) vs 8 (Xeon w9-3575X). PCIe lanes: 88 (Ryzen Threadripper 3990X) vs 112 (Xeon w9-3575X) — the Xeon w9-3575X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: TRX40 (Ryzen Threadripper 3990X) and W790 (Xeon w9-3575X).

Feature	Ryzen Threadripper 3990X	Xeon w9-3575X
Socket	TR4	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	DDR5-4800+25%
Max RAM Capacity	256 GB	4096 GB+1500%
RAM Channels	4	8+100%
ECC Support	Yes	Yes
PCIe Lanes	88	112+27%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Xeon w9-3575X supports AVX-512 instructions — important for machine learning and scientific applications. Both support true virtualization. Direct competitor: Ryzen Threadripper 3990X rivals Core i9-10980XE; Xeon w9-3575X rivals Ryzen Threadripper 7970X.

Feature	Ryzen Threadripper 3990X	Xeon w9-3575X
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	true	true

💰

Value Analysis

The Ryzen Threadripper 3990X launched at $3990 MSRP, while the Xeon w9-3575X debuted at $3789. On MSRP ($3990 vs $3789), the Xeon w9-3575X is $201 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen Threadripper 3990X delivers 20.0 pts/$ vs 21.8 pts/$ for the Xeon w9-3575X — making the Xeon w9-3575X the 8.4% better value option.