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 7645HX

2023

Why buy it

✅Draws 45W instead of 65W, a 20W reduction.
✅Newer platform on FL1 with DDR5 support instead of AM4 and DDR4.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 610M, while Ryzen 7 5800 needs a discrete GPU.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Ryzen 7 5800

2020

Why buy it

Trade-offs

❌Lower PassMark (25,735 vs 26,097).
❌Launch MSRP is still $349 MSRP, while Ryzen 5 7645HX mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 7645HX moves to FL1 and DDR5.
❌No integrated graphics, while Ryzen 5 7645HX can still boot and troubleshoot without a discrete GPU.

Ryzen 5 7645HX

2023

Ryzen 7 5800

2020

Why buy it

✅Draws 45W instead of 65W, a 20W reduction.
✅Newer platform on FL1 with DDR5 support instead of AM4 and DDR4.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 610M, while Ryzen 7 5800 needs a discrete GPU.

Why buy it

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Trade-offs

❌Lower PassMark (25,735 vs 26,097).
❌Launch MSRP is still $349 MSRP, while Ryzen 5 7645HX mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 7645HX moves to FL1 and DDR5.
❌No integrated graphics, while Ryzen 5 7645HX can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 7645HX better than Ryzen 7 5800?

Yes. Ryzen 5 7645HX is the better overall CPU here. You are getting a 0.0% average FPS lead across 50 shared CPU game tests in our data, 1.4% better 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 7645HX is the better pick here. According to our tests, it delivers 0.0% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 5 7645HX is the better fit. You are getting 1.4% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 7645HX is still the faster CPU overall, but Ryzen 7 5800 makes more sense if price matters more than absolute performance. Ryzen 5 7645HX is at an unclear MSRP at unclear MSRP versus $349 MSRP, and it gives you a 0.0% average FPS lead across 50 shared CPU game tests in our data. Ryzen 7 5800 is also 100.0% better value on MSRP (73.7 vs 0.0 PassMark/$), 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 7645HX is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020), a healthier platform with FL1 and DDR5 instead of AM4, and more multi-core headroom with 6 cores / 12 threads instead of 8/16. 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 7645HX Benchmark Check

Ryzen 7 5800 Benchmark Check

Path of Exile 2

Preset	Ryzen 5 7645HX	Ryzen 7 5800
1080p
low	272 FPS	166 FPS
medium	249 FPS	136 FPS
high	212 FPS	119 FPS
ultra	182 FPS	96 FPS
1440p
low	229 FPS	145 FPS
medium	190 FPS	116 FPS
high	155 FPS	98 FPS
ultra	137 FPS	79 FPS
4K
low	160 FPS	80 FPS
medium	133 FPS	69 FPS
high	103 FPS	55 FPS
ultra	89 FPS	44 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5800

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 7645HX	Ryzen 7 5800
1080p
low	638 FPS	643 FPS
medium	515 FPS	541 FPS
high	430 FPS	441 FPS
ultra	385 FPS	397 FPS
1440p
low	546 FPS	551 FPS
medium	459 FPS	477 FPS
high	390 FPS	401 FPS
ultra	335 FPS	345 FPS
4K
low	347 FPS	342 FPS
medium	294 FPS	299 FPS
high	273 FPS	273 FPS
ultra	236 FPS	241 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5800

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 7645HX	Ryzen 7 5800
1080p
low	652 FPS	643 FPS
medium	652 FPS	547 FPS
high	652 FPS	497 FPS
ultra	590 FPS	425 FPS
1440p
low	652 FPS	558 FPS
medium	598 FPS	460 FPS
high	515 FPS	419 FPS
ultra	442 FPS	358 FPS
4K
low	513 FPS	405 FPS
medium	433 FPS	325 FPS
high	374 FPS	294 FPS
ultra	306 FPS	231 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5800

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 7645HX	Ryzen 7 5800
1080p
low	652 FPS	643 FPS
medium	652 FPS	643 FPS
high	652 FPS	643 FPS
ultra	652 FPS	643 FPS
1440p
low	652 FPS	643 FPS
medium	652 FPS	643 FPS
high	652 FPS	622 FPS
ultra	570 FPS	536 FPS
4K
low	586 FPS	556 FPS
medium	525 FPS	502 FPS
high	474 FPS	447 FPS
ultra	405 FPS	391 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5800

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 7645HX and Ryzen 7 5800

Ryzen 5 7645HX

The Ryzen 5 7645HX is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Dragon Range (Zen4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 4 GHz, with boost up to 5 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 45 Watt. Memory support: DDR5-5200. Passmark benchmark score: 26,097 points. Launch price was $299.

Ryzen 7 5800

The Ryzen 7 5800 is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (2020−2025) architecture. It features 8 cores and 16 threads. Base frequency is 3.4 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 25,735 points. Launch price was $299.

⚡

Processing Power

The Ryzen 5 7645HX packs 6 cores / 12 threads, while the Ryzen 7 5800 offers 8 cores / 16 threads — the Ryzen 7 5800 has 2 more cores. Boost clocks reach 5 GHz on the Ryzen 5 7645HX versus 4.6 GHz on the Ryzen 7 5800 — a 8.3% clock advantage for the Ryzen 5 7645HX (base: 4 GHz vs 3.4 GHz). The Ryzen 5 7645HX uses the Dragon Range (Zen4) (2023) architecture (5 nm), while the Ryzen 7 5800 uses Vermeer (2020−2025) (7 nm, 12 nm). In PassMark, the Ryzen 5 7645HX scores 26,097 against the Ryzen 7 5800's 25,735 — a 1.4% lead for the Ryzen 5 7645HX. L3 cache: 32 MB (total) on the Ryzen 5 7645HX vs 32 MB on the Ryzen 7 5800.

Feature	Ryzen 5 7645HX	Ryzen 7 5800
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5 GHz+9%	4.6 GHz
Base Clock	4 GHz+18%	3.4 GHz
L3 Cache	32 MB (total)	32 MB
L2 Cache	1 MB (per core)+100%	512K (per core)
Process	5 nm-29%	7 nm, 12 nm
Architecture	Dragon Range (Zen4) (2023)	Vermeer (2020−2025)
PassMark	26,097+1%	25,735
Cinebench R23 Multi	13,985	—
Geekbench 6 Single	2,588	—
Geekbench 6 Multi	11,717	—

🧠

Memory & Platform

The Ryzen 5 7645HX uses the FL1 socket (PCIe 5.0), while the Ryzen 7 5800 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 5 7645HX versus DDR4-3200 on the Ryzen 7 5800 — the Ryzen 5 7645HX supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5800 supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 5 7645HX) vs 24 (Ryzen 7 5800) — the Ryzen 5 7645HX offers 4 more lanes for additional GPUs or NVMe drives.

Feature	Ryzen 5 7645HX	Ryzen 7 5800
Socket	FL1	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-5200+25%	DDR4-3200
Max RAM Capacity	64 GB	128 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	28+17%	24

🔧

Advanced Features

Only the Ryzen 7 5800 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 5 7645HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (SVM) (Ryzen 5 7645HX) vs AMD-V (Ryzen 7 5800). The Ryzen 5 7645HX includes integrated graphics (Radeon 610M), while the Ryzen 7 5800 requires a dedicated GPU. Primary use case: Ryzen 5 7645HX targets Gaming, Ryzen 7 5800 targets OEM Gaming. Direct competitor: Ryzen 5 7645HX rivals Core i5-13500HX.