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.

Core i5-10400F

2020

Why buy it

✅Costs $3,830 less on MSRP ($160 MSRP vs $3,990 MSRP).
✅Delivers 306.7% more PassMark for each dollar spent, at 81.4 vs 20.0 PassMark/$ ($160 MSRP vs $3,990 MSRP).
✅Draws 65W instead of 280W, a 215W reduction.
✅Includes a boxed cooler (Yes), unlike Ryzen Threadripper 3990X.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper 3990X across 3 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,191 vs 64,366).
❌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

✅Better for gaming: +54.4% higher average FPS across 3 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 64 cores / 128 threads, plus 88 PCIe lanes vs 16.
✅450% more PCIe lanes (88 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 20.0 vs 81.4 PassMark/$ ($3,990 MSRP vs $160 MSRP).
❌330.8% higher power demand at 280W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Ryzen Threadripper 3990X

2019

Why buy it

✅Costs $3,830 less on MSRP ($160 MSRP vs $3,990 MSRP).
✅Delivers 306.7% more PassMark for each dollar spent, at 81.4 vs 20.0 PassMark/$ ($160 MSRP vs $3,990 MSRP).
✅Draws 65W instead of 280W, a 215W reduction.
✅Includes a boxed cooler (Yes), unlike Ryzen Threadripper 3990X.

Why buy it

✅Better for gaming: +54.4% higher average FPS across 3 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 64 cores / 128 threads, plus 88 PCIe lanes vs 16.
✅450% more PCIe lanes (88 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper 3990X across 3 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,191 vs 64,366).
❌Less compelling for workstation-style loads than Ryzen Threadripper 3990X, which brings 64 cores / 128 threads and 88 PCIe lanes.

Trade-offs

❌Lower PassMark per dollar, at 20.0 vs 81.4 PassMark/$ ($3,990 MSRP vs $160 MSRP).
❌330.8% higher power demand at 280W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Ryzen Threadripper 3990X better than Core i5-10400F?

Not in a simple one-size-fits-all way. Ryzen Threadripper 3990X makes more sense for workstation-style multi-core throughput, while Core i5-10400F is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Ryzen Threadripper 3990X is the better pick here. According to our tests, it delivers 54.4% more average FPS across 3 shared CPU game tests. It also has a big cache advantage at 256 MB vs 12 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 685.8% better Cinebench R23 multi-core, backed by 64 cores and 128 threads. It also carries the larger cache pool with 2033.3% larger total L3 cache (256 MB vs 12 MB).

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

Ryzen Threadripper 3990X is still the faster CPU overall, but Core i5-10400F makes more sense if price matters more than absolute performance. Ryzen Threadripper 3990X is 2393.8% more expensive on MSRP at $3,990 MSRP versus $160 MSRP, and it gives you a 54.4% average FPS lead across 3 shared CPU game tests in our data. Core i5-10400F is also 306.7% better value on MSRP (81.4 vs 20.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Core i5-10400F 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.

Core i5-10400F Benchmark Check

Ryzen Threadripper 3990X Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Ryzen Threadripper 3990X
1080p
low	192 FPS	181 FPS
medium	152 FPS	152 FPS
high	123 FPS	131 FPS
ultra	100 FPS	106 FPS
1440p
low	153 FPS	157 FPS
medium	119 FPS	125 FPS
high	97 FPS	102 FPS
ultra	79 FPS	83 FPS
4K
low	82 FPS	85 FPS
medium	70 FPS	72 FPS
high	55 FPS	57 FPS
ultra	43 FPS	46 FPS

Open Core i5-10400F Open Ryzen Threadripper 3990X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Ryzen Threadripper 3990X
1080p
low	326 FPS	584 FPS
medium	318 FPS	503 FPS
high	290 FPS	386 FPS
ultra	253 FPS	330 FPS
1440p
low	326 FPS	491 FPS
medium	292 FPS	433 FPS
high	267 FPS	343 FPS
ultra	234 FPS	277 FPS
4K
low	309 FPS	308 FPS
medium	258 FPS	275 FPS
high	235 FPS	235 FPS
ultra	199 FPS	204 FPS

Open Core i5-10400F Open Ryzen Threadripper 3990X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Ryzen Threadripper 3990X
1080p
low	326 FPS	681 FPS
medium	326 FPS	563 FPS
high	326 FPS	497 FPS
ultra	326 FPS	428 FPS
1440p
low	326 FPS	582 FPS
medium	326 FPS	488 FPS
high	326 FPS	427 FPS
ultra	326 FPS	368 FPS
4K
low	326 FPS	424 FPS
medium	326 FPS	338 FPS
high	289 FPS	293 FPS
ultra	229 FPS	234 FPS

Open Core i5-10400F Open Ryzen Threadripper 3990X

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Ryzen Threadripper 3990X
1080p
low	326 FPS	942 FPS
medium	326 FPS	842 FPS
high	326 FPS	724 FPS
ultra	326 FPS	639 FPS
1440p
low	326 FPS	777 FPS
medium	326 FPS	677 FPS
high	326 FPS	580 FPS
ultra	326 FPS	502 FPS
4K
low	326 FPS	540 FPS
medium	326 FPS	489 FPS
high	326 FPS	429 FPS
ultra	326 FPS	373 FPS

Open Core i5-10400F Open Ryzen Threadripper 3990X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Ryzen Threadripper 3990X

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

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 Core i5-10400F packs 6 cores / 12 threads, while the Ryzen Threadripper 3990X offers 64 cores / 128 threads — the Ryzen Threadripper 3990X has 58 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.3 GHz on the Ryzen Threadripper 3990X — identical boost frequencies (base: 2.9 GHz vs 2.9 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Ryzen Threadripper 3990X uses Matisse (2019−2020) (7 nm, 12 nm). In PassMark, the Core i5-10400F scores 13,029 against the Ryzen Threadripper 3990X's 79,889 — a 143.9% lead for the Ryzen Threadripper 3990X. Cinebench R23 multi-core: 8,191 vs 64,366 (154.8% advantage for the Ryzen Threadripper 3990X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 1,961, a 29.7% lead for the Ryzen Threadripper 3990X that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 22,045 (116.9% advantage for the Ryzen Threadripper 3990X). L3 cache: 12 MB (total) on the Core i5-10400F vs 256 MB on the Ryzen Threadripper 3990X.

Feature	Core i5-10400F	Ryzen Threadripper 3990X
Cores / Threads	6 / 12	64 / 128+967%
Boost Clock	4.3 GHz	4.3 GHz
Base Clock	2.9 GHz	2.9 GHz
L3 Cache	12 MB (total)	256 MB+2033%
L2 Cache	256K (per core)	512K (per core)+100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Comet Lake (2020−2025)	Matisse (2019−2020)
PassMark	13,029	79,889+513%
Cinebench R23 Multi	8,191	64,366+686%
Geekbench 6 Single	1,454	1,961+35%
Geekbench 6 Multi	5,783	22,045+281%

🧠

Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Ryzen Threadripper 3990X uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 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 (Core i5-10400F) vs 4 (Ryzen Threadripper 3990X). PCIe lanes: 16 (Core i5-10400F) vs 88 (Ryzen Threadripper 3990X) — the Ryzen Threadripper 3990X offers 72 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and TRX40 (Ryzen Threadripper 3990X).

Feature	Core i5-10400F	Ryzen Threadripper 3990X
Socket	LGA1200	TR4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	DDR4-3200
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	4+100%
ECC Support	No	Yes
PCIe Lanes	16	88+450%

🔧

Advanced Features

Only the Ryzen Threadripper 3990X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i5-10400F) vs true (Ryzen Threadripper 3990X). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600; Ryzen Threadripper 3990X rivals Core i9-10980XE.

Feature	Core i5-10400F	Ryzen Threadripper 3990X
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	true
Target Use	Gaming	—

💰

Value Analysis

The Core i5-10400F launched at $160 MSRP, while the Ryzen Threadripper 3990X debuted at $3990. On MSRP ($160 vs $3990), the Core i5-10400F is $3830 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 20.0 pts/$ for the Ryzen Threadripper 3990X — making the Core i5-10400F the 121.1% better value option.