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

✅+16% higher Cinebench R23 multi-core.
✅Includes a boxed cooler (Yes), unlike Ryzen 5 8640U.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,700 vs 2,519).
❌Launch MSRP is still $174 MSRP, while Ryzen 5 8640U mostly shows up through inconsistent older-market listings.
❌132.1% higher power demand at 65W vs 28W.
❌No integrated graphics, while Ryzen 5 8640U can still boot and troubleshoot without a discrete GPU.

Ryzen 5 8640U

2023

Why buy it

✅+48.2% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Draws 28W instead of 65W, a 37W reduction.
✅Integrated graphics onboard with Radeon 760M, while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Lower Cinebench R23 multi-core (10,675 vs 12,380).
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Ryzen 5 8640U

2023

Why buy it

✅+16% higher Cinebench R23 multi-core.
✅Includes a boxed cooler (Yes), unlike Ryzen 5 8640U.

Why buy it

✅+48.2% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Draws 28W instead of 65W, a 37W reduction.
✅Integrated graphics onboard with Radeon 760M, while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,700 vs 2,519).
❌Launch MSRP is still $174 MSRP, while Ryzen 5 8640U mostly shows up through inconsistent older-market listings.
❌132.1% higher power demand at 65W vs 28W.
❌No integrated graphics, while Ryzen 5 8640U can still boot and troubleshoot without a discrete GPU.

Trade-offs

❌Lower Cinebench R23 multi-core (10,675 vs 12,380).
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Ryzen 5 8640U better than Core i5-12400F?

It depends on what matters more to you. For gaming, Ryzen 5 8640U is ahead with a 2.3% average FPS lead across 4 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-12400F pulls ahead with 16% better Cinebench R23 multi-core.

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

For streaming, content creation, and heavier multitasking, Core i5-12400F is the better fit. You are getting 16% better Cinebench R23 multi-core, backed by 6 cores and 12 threads.

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

Ryzen 5 8640U is still the faster CPU overall, but Core i5-12400F makes more sense if price matters more than absolute performance. Ryzen 5 8640U is at an unclear MSRP at unclear MSRP versus $174 MSRP, and it gives you a 2.3% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that Core i5-12400F is still stronger for heavier multi-core work with 16% better Cinebench R23 multi-core. Core i5-12400F is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Ryzen 5 8640U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022). 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 i5-12400F Benchmark Check

Ryzen 5 8640U Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Ryzen 5 8640U
1080p
low	183 FPS	261 FPS
medium	168 FPS	237 FPS
high	139 FPS	199 FPS
ultra	119 FPS	171 FPS
1440p
low	153 FPS	230 FPS
medium	132 FPS	190 FPS
high	106 FPS	155 FPS
ultra	89 FPS	137 FPS
4K
low	87 FPS	159 FPS
medium	81 FPS	133 FPS
high	64 FPS	103 FPS
ultra	49 FPS	91 FPS

Open Core i5-12400F Open Ryzen 5 8640U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Ryzen 5 8640U
1080p
low	471 FPS	372 FPS
medium	397 FPS	309 FPS
high	341 FPS	272 FPS
ultra	301 FPS	236 FPS
1440p
low	407 FPS	313 FPS
medium	351 FPS	270 FPS
high	309 FPS	244 FPS
ultra	265 FPS	207 FPS
4K
low	282 FPS	234 FPS
medium	248 FPS	206 FPS
high	229 FPS	191 FPS
ultra	196 FPS	161 FPS

Open Core i5-12400F Open Ryzen 5 8640U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Ryzen 5 8640U
1080p
low	488 FPS	507 FPS
medium	488 FPS	507 FPS
high	488 FPS	507 FPS
ultra	488 FPS	507 FPS
1440p
low	488 FPS	507 FPS
medium	488 FPS	507 FPS
high	485 FPS	507 FPS
ultra	434 FPS	443 FPS
4K
low	442 FPS	493 FPS
medium	389 FPS	435 FPS
high	337 FPS	372 FPS
ultra	274 FPS	308 FPS

Open Core i5-12400F Open Ryzen 5 8640U

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Ryzen 5 8640U
1080p
low	488 FPS	507 FPS
medium	488 FPS	507 FPS
high	488 FPS	507 FPS
ultra	488 FPS	507 FPS
1440p
low	488 FPS	507 FPS
medium	488 FPS	507 FPS
high	488 FPS	507 FPS
ultra	473 FPS	507 FPS
4K
low	488 FPS	507 FPS
medium	450 FPS	501 FPS
high	391 FPS	442 FPS
ultra	330 FPS	380 FPS

Open Core i5-12400F Open Ryzen 5 8640U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Ryzen 5 8640U

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 5 8640U

The Ryzen 5 8640U is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-U (Zen 4) (2023−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 20,274 points. Launch price was $299.

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Processing Power

Both the Core i5-12400F and Ryzen 5 8640U share an identical 6-core/12-thread configuration. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.9 GHz on the Ryzen 5 8640U — a 10.8% clock advantage for the Ryzen 5 8640U (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 5 8640U uses Hawk Point-U (Zen 4) (2023−2025) (4 nm). In PassMark, the Core i5-12400F scores 19,532 against the Ryzen 5 8640U's 20,274 — a 3.7% lead for the Ryzen 5 8640U. Cinebench R23 multi-core: 12,380 vs 10,675 (14.8% advantage for the Core i5-12400F). Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 2,519, a 38.8% lead for the Ryzen 5 8640U that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 10,308 (176% advantage for the Ryzen 5 8640U). L3 cache: 18 MB (total) on the Core i5-12400F vs 16 MB (total) on the Ryzen 5 8640U.

Feature	Core i5-12400F	Ryzen 5 8640U
Cores / Threads	6 / 12	6 / 12
Boost Clock	4.4 GHz	4.9 GHz+11%
Base Clock	2.5 GHz	3.5 GHz+40%
L3 Cache	18 MB (total)+13%	16 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm	4 nm-43%
Architecture	Alder Lake-S (2022)	Hawk Point-U (Zen 4) (2023−2025)
PassMark	19,532	20,274+4%
Cinebench R23 Multi	12,380+16%	10,675
Geekbench 6 Single	1,700	2,519+48%
Geekbench 6 Multi	657	10,308+1469%

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Ryzen 5 8640U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800, DDR4-3200 memory speed. The Ryzen 5 8640U supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and SoC (Ryzen 5 8640U).

Feature	Core i5-12400F	Ryzen 5 8640U
Socket	LGA1700	FP8
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR5-4800, DDR4-3200	LPDDR5x-7500
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	20

🔧

Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs AMD-V (SVM) (Ryzen 5 8640U). The Ryzen 5 8640U includes integrated graphics (Radeon 760M), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value, Ryzen 5 8640U targets Productivity. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Ryzen 5 8640U rivals Core i5-1335U.

Feature	Core i5-12400F	Ryzen 5 8640U
Integrated GPU	No	Yes
IGPU Model	—	Radeon 760M
Unlocked	—	No
AVX-512	—	Yes
Virtualization	VT-x, VT-d, EPT	AMD-V (SVM)
Target Use	Gaming Performance/Value	Productivity