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 $589 less on MSRP ($160 MSRP vs $749 MSRP).
✅Delivers 58.3% more PassMark for each dollar spent, at 81.4 vs 51.4 PassMark/$ ($160 MSRP vs $749 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 3950X.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3950X across 3 shared CPU benchmark tests.
❌Lower PassMark (13,029 vs 38,519).
❌Smaller total L3 cache (12 MB vs 64 MB).

Ryzen 9 3950X

2019

Why buy it

✅Better for gaming: +93.8% higher average FPS across 3 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 51.4 vs 81.4 PassMark/$ ($749 MSRP vs $160 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Ryzen 9 3950X

2019

Why buy it

✅Costs $589 less on MSRP ($160 MSRP vs $749 MSRP).
✅Delivers 58.3% more PassMark for each dollar spent, at 81.4 vs 51.4 PassMark/$ ($160 MSRP vs $749 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 3950X.

Why buy it

✅Better for gaming: +93.8% higher average FPS across 3 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3950X across 3 shared CPU benchmark tests.
❌Lower PassMark (13,029 vs 38,519).
❌Smaller total L3 cache (12 MB vs 64 MB).

Trade-offs

❌Lower PassMark per dollar, at 51.4 vs 81.4 PassMark/$ ($749 MSRP vs $160 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Ryzen 9 3950X better than Core i5-10400F?

Yes. Ryzen 9 3950X is the better overall CPU here. You are getting a 93.8% average FPS lead across 3 shared CPU game tests in our data and 195.6% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 3950X is the better pick here. According to our tests, it delivers 93.8% more average FPS across 3 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 3950X is the better fit. You are getting 195.6% better PassMark, backed by 16 cores and 32 threads. It also carries the larger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

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

Ryzen 9 3950X is still the faster CPU overall, but Core i5-10400F makes more sense if price matters more than absolute performance. Ryzen 9 3950X is 368.1% more expensive on MSRP at $749 MSRP versus $160 MSRP, and it gives you a 93.8% average FPS lead across 3 shared CPU game tests in our data. Core i5-10400F is also 58.3% better value on MSRP (81.4 vs 51.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper. That said, if you already own a compatible LGA1200 + DDR4 setup, Core i5-10400F can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.

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 9 3950X Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Ryzen 9 3950X
1080p
low	192 FPS	207 FPS
medium	152 FPS	182 FPS
high	123 FPS	147 FPS
ultra	100 FPS	119 FPS
1440p
low	153 FPS	167 FPS
medium	119 FPS	138 FPS
high	97 FPS	109 FPS
ultra	79 FPS	91 FPS
4K
low	82 FPS	89 FPS
medium	70 FPS	79 FPS
high	55 FPS	62 FPS
ultra	43 FPS	50 FPS

Open Core i5-10400F Open Ryzen 9 3950X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Ryzen 9 3950X
1080p
low	326 FPS	701 FPS
medium	318 FPS	616 FPS
high	290 FPS	497 FPS
ultra	253 FPS	438 FPS
1440p
low	326 FPS	580 FPS
medium	292 FPS	519 FPS
high	267 FPS	439 FPS
ultra	234 FPS	360 FPS
4K
low	309 FPS	340 FPS
medium	258 FPS	306 FPS
high	235 FPS	283 FPS
ultra	199 FPS	252 FPS

Open Core i5-10400F Open Ryzen 9 3950X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Ryzen 9 3950X
1080p
low	326 FPS	871 FPS
medium	326 FPS	701 FPS
high	326 FPS	623 FPS
ultra	326 FPS	520 FPS
1440p
low	326 FPS	710 FPS
medium	326 FPS	572 FPS
high	326 FPS	498 FPS
ultra	326 FPS	422 FPS
4K
low	326 FPS	494 FPS
medium	326 FPS	412 FPS
high	289 FPS	365 FPS
ultra	229 FPS	307 FPS

Open Core i5-10400F Open Ryzen 9 3950X

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Ryzen 9 3950X
1080p
low	326 FPS	963 FPS
medium	326 FPS	963 FPS
high	326 FPS	887 FPS
ultra	326 FPS	796 FPS
1440p
low	326 FPS	883 FPS
medium	326 FPS	772 FPS
high	326 FPS	678 FPS
ultra	326 FPS	597 FPS
4K
low	326 FPS	649 FPS
medium	326 FPS	577 FPS
high	326 FPS	513 FPS
ultra	326 FPS	437 FPS

Open Core i5-10400F Open Ryzen 9 3950X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Ryzen 9 3950X

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 9 3950X

The Ryzen 9 3950X is manufactured by AMD. It was released in 14 November 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 16 cores and 32 threads. Base frequency is 3.5 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 Dual-channel. Passmark benchmark score: 38,519 points. Launch price was $799.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Ryzen 9 3950X offers 16 cores / 32 threads — the Ryzen 9 3950X has 10 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.7 GHz on the Ryzen 9 3950X — a 8.9% clock advantage for the Ryzen 9 3950X (base: 2.9 GHz vs 3.5 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Ryzen 9 3950X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Core i5-10400F scores 13,029 against the Ryzen 9 3950X's 38,519 — a 98.9% lead for the Ryzen 9 3950X. L3 cache: 12 MB (total) on the Core i5-10400F vs 64 MB on the Ryzen 9 3950X.

Feature	Core i5-10400F	Ryzen 9 3950X
Cores / Threads	6 / 12	16 / 32+167%
Boost Clock	4.3 GHz	4.7 GHz+9%
Base Clock	2.9 GHz	3.5 GHz+21%
L3 Cache	12 MB (total)	64 MB+433%
L2 Cache	256K (per core)	512K (per core)+100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Comet Lake (2020−2025)	Matisse (Zen 2) (2019−2020)
PassMark	13,029	38,519+196%
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454	—
Geekbench 6 Multi	5,783	—

🧠

Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Ryzen 9 3950X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-10400F) vs 24 (Ryzen 9 3950X) — the Ryzen 9 3950X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and X570,B550 (Ryzen 9 3950X).

Feature	Core i5-10400F	Ryzen 9 3950X
Socket	LGA1200	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	DDR4-3200
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	24+50%

🔧

Advanced Features

Only the Ryzen 9 3950X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i5-10400F) vs AMD-V (Ryzen 9 3950X). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-10400F	Ryzen 9 3950X
Integrated GPU	No	No
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	AMD-V
Target Use	Gaming	—

💰

Value Analysis

The Core i5-10400F launched at $160 MSRP, while the Ryzen 9 3950X debuted at $749. On MSRP ($160 vs $749), the Core i5-10400F is $589 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 51.4 pts/$ for the Ryzen 9 3950X — making the Core i5-10400F the 45.2% better value option.