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.

Ryzen 5 8640U

2023

Why buy it

✅Draws 28W instead of 120W, a 92W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 4 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (10,675 vs 18,500).

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +63.1% higher average FPS across 4 shared CPU benchmark tests.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $449 MSRP, while Ryzen 5 8640U mostly shows up through inconsistent older-market listings.
❌328.6% higher power demand at 120W vs 28W.

Ryzen 5 8640U

2023

Ryzen 7 7800X3D

2023

Why buy it

✅Draws 28W instead of 120W, a 92W reduction.

Why buy it

✅Better for gaming: +63.1% higher average FPS across 4 shared CPU benchmark tests.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 4 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (10,675 vs 18,500).

Trade-offs

❌Launch MSRP is still $449 MSRP, while Ryzen 5 8640U mostly shows up through inconsistent older-market listings.
❌328.6% higher power demand at 120W vs 28W.

Quick Answers

So, is Ryzen 7 7800X3D better than Ryzen 5 8640U?

Yes. Ryzen 7 7800X3D is the better overall CPU here. You are getting a 63.1% average FPS lead across 4 shared CPU game tests in our data, 73.3% better Cinebench R23 multi-core, 69.1% 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 7 7800X3D is the better pick here. According to our tests, it delivers 63.1% more average FPS across 4 shared CPU game tests. It also has a big cache advantage at 96 MB vs 16 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7800X3D is the better fit. You are getting 73.3% better Cinebench R23 multi-core, backed by 8 cores and 16 threads. It also carries the larger cache pool with 500% larger total L3 cache (96 MB vs 16 MB).

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

Ryzen 7 7800X3D is the smarter buy today. Ryzen 7 7800X3D is at an unclear MSRP at $449 MSRP versus unclear MSRP, and it gives you a 63.1% average FPS lead across 4 shared CPU game tests in our data. It is also 100.0% better value on MSRP (76.4 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen 7 7800X3D is the more future-proof choice for 2026 and beyond. You are getting 3D V-Cache and a much larger 96 MB L3 cache instead of 16 MB and more multi-core headroom with 8 cores / 16 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.

Ryzen 5 8640U Benchmark Check

Ryzen 7 7800X3D Benchmark Check

Path of Exile 2

Preset	Ryzen 5 8640U	Ryzen 7 7800X3D
1080p
low	261 FPS	266 FPS
medium	237 FPS	247 FPS
high	199 FPS	211 FPS
ultra	171 FPS	186 FPS
1440p
low	230 FPS	258 FPS
medium	190 FPS	215 FPS
high	155 FPS	171 FPS
ultra	137 FPS	154 FPS
4K
low	159 FPS	179 FPS
medium	133 FPS	149 FPS
high	103 FPS	112 FPS
ultra	91 FPS	100 FPS

Open Ryzen 5 8640U Open Ryzen 7 7800X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 8640U	Ryzen 7 7800X3D
1080p
low	371 FPS	857 FPS
medium	309 FPS	737 FPS
high	272 FPS	580 FPS
ultra	236 FPS	493 FPS
1440p
low	313 FPS	722 FPS
medium	270 FPS	611 FPS
high	244 FPS	500 FPS
ultra	207 FPS	398 FPS
4K
low	234 FPS	396 FPS
medium	206 FPS	339 FPS
high	191 FPS	315 FPS
ultra	161 FPS	273 FPS

Open Ryzen 5 8640U Open Ryzen 7 7800X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 8640U	Ryzen 7 7800X3D
1080p
low	507 FPS	857 FPS
medium	507 FPS	857 FPS
high	507 FPS	857 FPS
ultra	507 FPS	857 FPS
1440p
low	507 FPS	857 FPS
medium	507 FPS	851 FPS
high	507 FPS	786 FPS
ultra	443 FPS	656 FPS
4K
low	493 FPS	558 FPS
medium	435 FPS	479 FPS
high	372 FPS	427 FPS
ultra	308 FPS	362 FPS

Open Ryzen 5 8640U Open Ryzen 7 7800X3D

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 8640U	Ryzen 7 7800X3D
1080p
low	507 FPS	857 FPS
medium	507 FPS	857 FPS
high	507 FPS	857 FPS
ultra	507 FPS	782 FPS
1440p
low	507 FPS	857 FPS
medium	507 FPS	760 FPS
high	507 FPS	669 FPS
ultra	507 FPS	576 FPS
4K
low	507 FPS	618 FPS
medium	501 FPS	556 FPS
high	442 FPS	495 FPS
ultra	380 FPS	428 FPS

Open Ryzen 5 8640U Open Ryzen 7 7800X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 8640U and Ryzen 7 7800X3D

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.

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

⚡

Processing Power

The Ryzen 5 8640U packs 6 cores / 12 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 2 more cores. Boost clocks reach 4.9 GHz on the Ryzen 5 8640U versus 5 GHz on the Ryzen 7 7800X3D — a 2% clock advantage for the Ryzen 7 7800X3D (base: 3.5 GHz vs 4.4 GHz). The Ryzen 5 8640U uses the Hawk Point-U (Zen 4) (2023−2025) architecture (4 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Ryzen 5 8640U scores 20,274 against the Ryzen 7 7800X3D's 34,293 — a 51.4% lead for the Ryzen 7 7800X3D. Cinebench R23 multi-core: 10,675 vs 18,500 (53.6% advantage for the Ryzen 7 7800X3D). Geekbench 6 single-core — the metric most relevant to gaming — records 2,519 vs 2,700, a 6.9% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. Multi-core Geekbench: 10,308 vs 15,000 (37.1% advantage for the Ryzen 7 7800X3D). L3 cache: 16 MB (total) on the Ryzen 5 8640U vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Ryzen 5 8640U	Ryzen 7 7800X3D
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.9 GHz	5 GHz+2%
Base Clock	3.5 GHz	4.4 GHz+26%
L3 Cache	16 MB (total)	96 MB (total)+500%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm-20%	5 nm
Architecture	Hawk Point-U (Zen 4) (2023−2025)	Raphael (Zen4) (2022−2023)
PassMark	20,274	34,293+69%
Cinebench R23 Multi	10,675	18,500+73%
Geekbench 6 Single	2,519	2,700+7%
Geekbench 6 Multi	10,308	15,000+46%

🧠

Memory & Platform

The Ryzen 5 8640U uses the FP8 socket (PCIe 4.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to LPDDR5x-7500 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. PCIe lanes: 20 (Ryzen 5 8640U) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 5 8640U) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	Ryzen 5 8640U	Ryzen 7 7800X3D
Socket	FP8	AM5
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	LPDDR5x-7500	DDR5-5200
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	28+40%

🔧

Advanced Features

Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (SVM) (Ryzen 5 8640U) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — Radeon 760M (Ryzen 5 8640U) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 5 8640U targets Productivity, Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 5 8640U rivals Core i5-1335U; Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	Ryzen 5 8640U	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	Radeon 760M	AMD Radeon Graphics (2-core)
Unlocked	No	Yes
AVX-512	Yes	Yes
Virtualization	AMD-V (SVM)	AMD-V
Target Use	Productivity	Gaming