Core i5-10400F vs Ryzen Threadripper 3990X

CPU

GPU

Core i5-10400F

6 Cores12 Thrd65 WWMax: 4.3 GHz2020

Core family

·······

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Ryzen Threadripper 3990X

64 Cores128 Thrd280 WWMax: 4.3 GHz2019

Threadripper family

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Core i5-10400F vs Ryzen Threadripper 3990X Performance Spectrum

Core i5-10400F

6 / 12

13,029

0.0%

Ryzen Threadripper 3990X

64 / 128

79,889

+513.2%

Ryzen 9 5900XT

Ryzen 9 8945HX

Ryzen Threadripper PRO 3975WX

Ryzen 9 9950X3D

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

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.

Core i5-10400F vs Ryzen Threadripper 3990X 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.

Core i5-10400F vs Ryzen Threadripper 3990X: Pros, Cons & Final Verdict

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

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 50 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: +39.6% higher average FPS across 50 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.

Quick Answers

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

Not really, because they are built for different jobs. Ryzen Threadripper 3990X makes more sense for workstation-style multi-core throughput, while Core i5-10400F is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Ryzen Threadripper 3990X is the better pick. According to our tests, it delivers 39.6% more average FPS across 50 shared CPU game tests. It also has a clear cache advantage at 256 MB versus 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 stronger fit. You are getting 685.8% better Cinebench R23 multi-core, backed by 64 cores and 128 threads. It also has 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 is easier to justify if budget matters more than peak performance. Ryzen Threadripper 3990X comes in 2393.8% more expensive on MSRP at $3,990 MSRP versus $160 MSRP, and it still gives you a 39.6% average FPS lead across 50 shared CPU game tests in our data. Core i5-10400F is also 306.7% better value on MSRP (81.4 vs 20.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i5-10400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019). That makes it the safer long-term bet.

Core i5-10400F vs Ryzen Threadripper 3990X Technical Specifications

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

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. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus DDR4-3200 on the Ryzen Threadripper 3990X — the Ryzen Threadripper 3990X supports 20% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper 3990X supports up to 256 GB of RAM compared to 128 GB — 100% 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+20%
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

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

Feature	Core i5-10400F	Ryzen Threadripper 3990X
MSRP	$160-96%	$3990
Performance per Dollar	81.4+307%	20.0
Release Date	2020	2019

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