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

✅Includes a boxed cooler (Yes), unlike Ryzen 5 8640U.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 8640U across 4 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,191 vs 10,675).
❌Smaller total L3 cache (12 MB vs 16 MB).
❌Launch MSRP is still $160 MSRP, while Ryzen 5 8640U mostly shows up through inconsistent older-market listings.
❌132.1% higher power demand at 65W vs 28W.

Ryzen 5 8640U

2023

Why buy it

✅Better for gaming: +41.4% higher average FPS across 4 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (16 MB vs 12 MB).
✅Draws 28W instead of 65W, a 37W reduction.
✅Newer platform on FP8 with DDR5 support instead of LGA1200 and DDR4.
✅25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Ryzen 5 8640U

2023

Why buy it

✅Includes a boxed cooler (Yes), unlike Ryzen 5 8640U.

Why buy it

✅Better for gaming: +41.4% higher average FPS across 4 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (16 MB vs 12 MB).
✅Draws 28W instead of 65W, a 37W reduction.
✅Newer platform on FP8 with DDR5 support instead of LGA1200 and DDR4.
✅25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 8640U across 4 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,191 vs 10,675).
❌Smaller total L3 cache (12 MB vs 16 MB).
❌Launch MSRP is still $160 MSRP, while Ryzen 5 8640U mostly shows up through inconsistent older-market listings.
❌132.1% higher power demand at 65W vs 28W.

Trade-offs

❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Ryzen 5 8640U better than Core i5-10400F?

Yes. Ryzen 5 8640U is the better overall CPU here. You are getting a 41.4% average FPS lead across 4 shared CPU game tests in our data, 30.3% better Cinebench R23 multi-core, 55.6% higher PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 5 8640U is the better pick here. According to our tests, it delivers 41.4% 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 5 8640U is the better fit. You are getting 30.3% better Cinebench R23 multi-core, backed by 6 cores and 12 threads. It also carries the larger cache pool with 33.3% larger total L3 cache (16 MB vs 12 MB).

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

Ryzen 5 8640U is still the faster CPU overall, but Core i5-10400F makes more sense if price matters more than absolute performance. Ryzen 5 8640U is at an unclear MSRP at unclear MSRP versus $160 MSRP, and it gives you a 41.4% average FPS lead across 4 shared CPU game tests in our data. Core i5-10400F is also 100.0% better value on MSRP (81.4 vs 0.0 PassMark/$), 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 2020), a healthier platform with FP8 and DDR5 instead of LGA1200, 33.3% larger total L3 cache (16 MB vs 12 MB), and more multi-core headroom with 6 cores / 12 threads instead of 6/12. 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 i5-10400F Benchmark Check

Ryzen 5 8640U Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Ryzen 5 8640U
1080p
low	192 FPS	261 FPS
medium	152 FPS	237 FPS
high	123 FPS	199 FPS
ultra	100 FPS	171 FPS
1440p
low	153 FPS	230 FPS
medium	119 FPS	190 FPS
high	97 FPS	155 FPS
ultra	79 FPS	137 FPS
4K
low	82 FPS	159 FPS
medium	70 FPS	133 FPS
high	55 FPS	103 FPS
ultra	43 FPS	91 FPS

Open Core i5-10400F Open Ryzen 5 8640U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Ryzen 5 8640U
1080p
low	326 FPS	371 FPS
medium	318 FPS	309 FPS
high	290 FPS	272 FPS
ultra	253 FPS	236 FPS
1440p
low	326 FPS	313 FPS
medium	292 FPS	270 FPS
high	267 FPS	244 FPS
ultra	234 FPS	207 FPS
4K
low	309 FPS	234 FPS
medium	258 FPS	206 FPS
high	235 FPS	191 FPS
ultra	199 FPS	161 FPS

Open Core i5-10400F Open Ryzen 5 8640U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Ryzen 5 8640U
1080p
low	326 FPS	507 FPS
medium	326 FPS	507 FPS
high	326 FPS	507 FPS
ultra	326 FPS	507 FPS
1440p
low	326 FPS	507 FPS
medium	326 FPS	507 FPS
high	326 FPS	507 FPS
ultra	326 FPS	443 FPS
4K
low	326 FPS	493 FPS
medium	326 FPS	435 FPS
high	289 FPS	372 FPS
ultra	229 FPS	308 FPS

Open Core i5-10400F Open Ryzen 5 8640U

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Ryzen 5 8640U
1080p
low	326 FPS	507 FPS
medium	326 FPS	507 FPS
high	326 FPS	507 FPS
ultra	326 FPS	507 FPS
1440p
low	326 FPS	507 FPS
medium	326 FPS	507 FPS
high	326 FPS	507 FPS
ultra	326 FPS	507 FPS
4K
low	326 FPS	507 FPS
medium	326 FPS	501 FPS
high	326 FPS	442 FPS
ultra	326 FPS	380 FPS

Open Core i5-10400F Open Ryzen 5 8640U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Ryzen 5 8640U

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 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.

⚡

Processing Power

Both the Core i5-10400F and Ryzen 5 8640U share an identical 6-core/12-thread configuration. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.9 GHz on the Ryzen 5 8640U — a 13% clock advantage for the Ryzen 5 8640U (base: 2.9 GHz vs 3.5 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Ryzen 5 8640U uses Hawk Point-U (Zen 4) (2023−2025) (4 nm). In PassMark, the Core i5-10400F scores 13,029 against the Ryzen 5 8640U's 20,274 — a 43.5% lead for the Ryzen 5 8640U. Cinebench R23 multi-core: 8,191 vs 10,675 (26.3% advantage for the Ryzen 5 8640U). Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 2,519, a 53.6% lead for the Ryzen 5 8640U that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 10,308 (56.2% advantage for the Ryzen 5 8640U). L3 cache: 12 MB (total) on the Core i5-10400F vs 16 MB (total) on the Ryzen 5 8640U.

Feature	Core i5-10400F	Ryzen 5 8640U
Cores / Threads	6 / 12	6 / 12
Boost Clock	4.3 GHz	4.9 GHz+14%
Base Clock	2.9 GHz	3.5 GHz+21%
L3 Cache	12 MB (total)	16 MB (total)+33%
L2 Cache	256K (per core)	1 MB (per core)+300%
Process	14 nm	4 nm-71%
Architecture	Comet Lake (2020−2025)	Hawk Point-U (Zen 4) (2023−2025)
PassMark	13,029	20,274+56%
Cinebench R23 Multi	8,191	10,675+30%
Geekbench 6 Single	1,454	2,519+73%
Geekbench 6 Multi	5,783	10,308+78%

🧠

Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Ryzen 5 8640U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus LPDDR5x-7500 on the Ryzen 5 8640U — the Ryzen 5 8640U supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. 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. PCIe lanes: 16 (Core i5-10400F) vs 20 (Ryzen 5 8640U) — the Ryzen 5 8640U offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and SoC (Ryzen 5 8640U).

Feature	Core i5-10400F	Ryzen 5 8640U
Socket	LGA1200	FP8
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	LPDDR5x-7500+25%
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	20+25%

🔧

Advanced Features

Neither processor supports overclocking. Only the Ryzen 5 8640U supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i5-10400F) vs AMD-V (SVM) (Ryzen 5 8640U). The Ryzen 5 8640U includes integrated graphics (Radeon 760M), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i5-10400F targets Gaming, Ryzen 5 8640U targets Productivity. Direct competitor: Core i5-10400F rivals Ryzen 5 3600; Ryzen 5 8640U rivals Core i5-1335U.