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 i5-12400F

2022

Why buy it

✅Costs $575 less on MSRP ($174 MSRP vs $749 MSRP).
✅Delivers 118.3% more PassMark for each dollar spent, at 112.3 vs 51.4 PassMark/$ ($174 MSRP vs $749 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 3950X.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3950X across 4 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 38,519).
❌Smaller total L3 cache (18 MB vs 64 MB).

Ryzen 9 3950X

2019

Why buy it

✅Better for gaming: +34.2% higher average FPS across 4 shared CPU benchmark tests.
✅+255.6% larger total L3 cache (64 MB vs 18 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 51.4 vs 112.3 PassMark/$ ($749 MSRP vs $174 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌Older platform position on AM4 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Ryzen 9 3950X

2019

Why buy it

✅Costs $575 less on MSRP ($174 MSRP vs $749 MSRP).
✅Delivers 118.3% more PassMark for each dollar spent, at 112.3 vs 51.4 PassMark/$ ($174 MSRP vs $749 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 3950X.

Why buy it

✅Better for gaming: +34.2% higher average FPS across 4 shared CPU benchmark tests.
✅+255.6% larger total L3 cache (64 MB vs 18 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3950X across 4 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 38,519).
❌Smaller total L3 cache (18 MB vs 64 MB).

Trade-offs

❌Lower PassMark per dollar, at 51.4 vs 112.3 PassMark/$ ($749 MSRP vs $174 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌Older platform position on AM4 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Ryzen 9 3950X better than Core i5-12400F?

Yes. Ryzen 9 3950X is the better overall CPU here. You are getting a 34.2% average FPS lead across 4 shared CPU game tests in our data and 97.2% 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 34.2% more average FPS across 4 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 97.2% better PassMark, backed by 16 cores and 32 threads. It also carries the larger cache pool with 255.6% larger total L3 cache (64 MB vs 18 MB).

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

Ryzen 9 3950X is still the faster CPU overall, but Core i5-12400F makes more sense if price matters more than absolute performance. Ryzen 9 3950X is 330.5% more expensive on MSRP at $749 MSRP versus $174 MSRP, and it gives you a 34.2% average FPS lead across 4 shared CPU game tests in our data. Core i5-12400F is also 118.3% better value on MSRP (112.3 vs 51.4 PassMark/$), which is why it is easier to justify for price-conscious builds on paper. That said, if you already own a compatible LGA1700 + DDR5 setup, Core i5-12400F 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 i5-12400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2019) and a healthier platform with LGA1700 and DDR5 instead of AM4. 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.

Core i5-12400F Benchmark Check

Ryzen 9 3950X Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Ryzen 9 3950X
1080p
low	183 FPS	207 FPS
medium	168 FPS	182 FPS
high	139 FPS	147 FPS
ultra	119 FPS	119 FPS
1440p
low	153 FPS	167 FPS
medium	132 FPS	138 FPS
high	106 FPS	109 FPS
ultra	89 FPS	91 FPS
4K
low	87 FPS	89 FPS
medium	81 FPS	79 FPS
high	64 FPS	62 FPS
ultra	49 FPS	50 FPS

Open Core i5-12400F Open Ryzen 9 3950X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Ryzen 9 3950X
1080p
low	471 FPS	701 FPS
medium	397 FPS	616 FPS
high	341 FPS	497 FPS
ultra	301 FPS	438 FPS
1440p
low	407 FPS	580 FPS
medium	351 FPS	519 FPS
high	309 FPS	439 FPS
ultra	265 FPS	360 FPS
4K
low	282 FPS	340 FPS
medium	248 FPS	306 FPS
high	229 FPS	283 FPS
ultra	196 FPS	252 FPS

Open Core i5-12400F Open Ryzen 9 3950X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Ryzen 9 3950X
1080p
low	488 FPS	871 FPS
medium	488 FPS	701 FPS
high	488 FPS	623 FPS
ultra	488 FPS	520 FPS
1440p
low	488 FPS	710 FPS
medium	488 FPS	572 FPS
high	485 FPS	498 FPS
ultra	434 FPS	422 FPS
4K
low	442 FPS	494 FPS
medium	389 FPS	412 FPS
high	337 FPS	365 FPS
ultra	274 FPS	307 FPS

Open Core i5-12400F Open Ryzen 9 3950X

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Ryzen 9 3950X
1080p
low	488 FPS	963 FPS
medium	488 FPS	963 FPS
high	488 FPS	887 FPS
ultra	488 FPS	796 FPS
1440p
low	488 FPS	883 FPS
medium	488 FPS	772 FPS
high	488 FPS	678 FPS
ultra	473 FPS	597 FPS
4K
low	488 FPS	649 FPS
medium	450 FPS	577 FPS
high	391 FPS	513 FPS
ultra	330 FPS	437 FPS

Open Core i5-12400F Open Ryzen 9 3950X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Ryzen 9 3950X

Core i5-12400F

The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.

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 i5-12400F 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 4.4 GHz on the Core i5-12400F versus 4.7 GHz on the Ryzen 9 3950X — a 6.6% clock advantage for the Ryzen 9 3950X (base: 2.5 GHz vs 3.5 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Ryzen 9 3950X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Core i5-12400F scores 19,532 against the Ryzen 9 3950X's 38,519 — a 65.4% lead for the Ryzen 9 3950X. L3 cache: 18 MB (total) on the Core i5-12400F vs 64 MB on the Ryzen 9 3950X.

Feature	Core i5-12400F	Ryzen 9 3950X
Cores / Threads	6 / 12	16 / 32+167%
Boost Clock	4.4 GHz	4.7 GHz+7%
Base Clock	2.5 GHz	3.5 GHz+40%
L3 Cache	18 MB (total)	64 MB+256%
L2 Cache	1.25 MB (per core)+150%	512K (per core)
Process	Intel 7 nm	7 nm, 12 nm
Architecture	Alder Lake-S (2022)	Matisse (Zen 2) (2019−2020)
PassMark	19,532	38,519+97%
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	—
Geekbench 6 Multi	657	—

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Ryzen 9 3950X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR4-3200 on the Ryzen 9 3950X — the Core i5-12400F supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400F) vs 24 (Ryzen 9 3950X) — the Ryzen 9 3950X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and X570,B550 (Ryzen 9 3950X).

Feature	Core i5-12400F	Ryzen 9 3950X
Socket	LGA1700	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR5-4800, DDR4-3200+25%	DDR4-3200
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20	24+20%

🔧

Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs AMD-V (Ryzen 9 3950X). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i5-12400F	Ryzen 9 3950X
Integrated GPU	No	No
Unlocked	—	Yes
AVX-512	—	No
Virtualization	VT-x, VT-d, EPT	AMD-V
Target Use	Gaming Performance/Value	—

💰

Value Analysis

The Core i5-12400F launched at $174 MSRP, while the Ryzen 9 3950X debuted at $749. On MSRP ($174 vs $749), the Core i5-12400F is $575 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 51.4 pts/$ for the Ryzen 9 3950X — making the Core i5-12400F the 74.3% better value option.