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 8645HS

2023

Why buy it

✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 760M, while Ryzen 7 5800X needs a discrete GPU.

Trade-offs

❌Lower PassMark (22,257 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Ryzen 7 5800X

2020

Why buy it

✅+24.5% higher PassMark.
✅+100% larger total L3 cache (32 MB vs 16 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $449 MSRP, while Ryzen 5 8645HS mostly shows up through inconsistent older-market listings.
❌133.3% higher power demand at 105W vs 45W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 8645HS moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen 5 8645HS can still boot and troubleshoot without a discrete GPU.

Ryzen 5 8645HS

2023

Ryzen 7 5800X

2020

Why buy it

✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 760M, while Ryzen 7 5800X needs a discrete GPU.

Why buy it

✅+24.5% higher PassMark.
✅+100% larger total L3 cache (32 MB vs 16 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (22,257 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Trade-offs

❌Launch MSRP is still $449 MSRP, while Ryzen 5 8645HS mostly shows up through inconsistent older-market listings.
❌133.3% higher power demand at 105W vs 45W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 8645HS moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen 5 8645HS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 8645HS better than Ryzen 7 5800X?

It depends on what matters more to you. For gaming, Ryzen 5 8645HS is ahead with a 2.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 5800X pulls ahead with 24.5% better PassMark. Ryzen 7 5800X also has the bigger cache pool with 100% larger total L3 cache (32 MB vs 16 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 7 5800X is the better fit. You are getting 24.5% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 100% larger total L3 cache (32 MB vs 16 MB).

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

Ryzen 5 8645HS is still the faster CPU overall, but Ryzen 7 5800X makes more sense if price matters more than absolute performance. Ryzen 5 8645HS is at an unclear MSRP at unclear MSRP versus $449 MSRP, and it gives you a 2.9% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Ryzen 7 5800X is still stronger for heavier multi-core work with 24.5% better PassMark. Ryzen 7 5800X is also 100.0% better value on MSRP (61.7 vs 0.0 PassMark/$), 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 8645HS is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020) and a healthier platform with FP8 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.

Ryzen 5 8645HS Benchmark Check

Ryzen 7 5800X Benchmark Check

Path of Exile 2

Preset	Ryzen 5 8645HS	Ryzen 7 5800X
1080p
low	265 FPS	206 FPS
medium	239 FPS	178 FPS
high	200 FPS	146 FPS
ultra	172 FPS	110 FPS
1440p
low	234 FPS	170 FPS
medium	191 FPS	142 FPS
high	156 FPS	115 FPS
ultra	138 FPS	88 FPS
4K
low	162 FPS	83 FPS
medium	135 FPS	74 FPS
high	104 FPS	59 FPS
ultra	91 FPS	46 FPS

Open Ryzen 5 8645HS Open Ryzen 7 5800X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 8645HS	Ryzen 7 5800X
1080p
low	426 FPS	662 FPS
medium	353 FPS	558 FPS
high	308 FPS	466 FPS
ultra	271 FPS	417 FPS
1440p
low	369 FPS	563 FPS
medium	320 FPS	493 FPS
high	281 FPS	423 FPS
ultra	240 FPS	361 FPS
4K
low	265 FPS	350 FPS
medium	235 FPS	308 FPS
high	218 FPS	288 FPS
ultra	183 FPS	250 FPS

Open Ryzen 5 8645HS Open Ryzen 7 5800X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 8645HS	Ryzen 7 5800X
1080p
low	556 FPS	693 FPS
medium	556 FPS	651 FPS
high	556 FPS	570 FPS
ultra	556 FPS	464 FPS
1440p
low	556 FPS	693 FPS
medium	556 FPS	573 FPS
high	520 FPS	498 FPS
ultra	449 FPS	413 FPS
4K
low	501 FPS	484 FPS
medium	445 FPS	410 FPS
high	380 FPS	363 FPS
ultra	315 FPS	302 FPS

Open Ryzen 5 8645HS Open Ryzen 7 5800X

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 8645HS	Ryzen 7 5800X
1080p
low	556 FPS	693 FPS
medium	556 FPS	693 FPS
high	556 FPS	693 FPS
ultra	556 FPS	693 FPS
1440p
low	556 FPS	693 FPS
medium	556 FPS	693 FPS
high	556 FPS	672 FPS
ultra	545 FPS	593 FPS
4K
low	556 FPS	604 FPS
medium	506 FPS	550 FPS
high	450 FPS	495 FPS
ultra	386 FPS	436 FPS

Open Ryzen 5 8645HS Open Ryzen 7 5800X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 8645HS and Ryzen 7 5800X

Ryzen 5 8645HS

The Ryzen 5 8645HS is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-HS (Zen 4) (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 4.3 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 22,257 points. Launch price was $299.

Ryzen 7 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 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. Passmark benchmark score: 27,712 points. Launch price was $449.

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Processing Power

The Ryzen 5 8645HS packs 6 cores / 12 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 7 5800X has 2 more cores. Boost clocks reach 5 GHz on the Ryzen 5 8645HS versus 4.7 GHz on the Ryzen 7 5800X — a 6.2% clock advantage for the Ryzen 5 8645HS (base: 4.3 GHz vs 3.8 GHz). The Ryzen 5 8645HS uses the Hawk Point-HS (Zen 4) (2023−2024) architecture (4 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 5 8645HS scores 22,257 against the Ryzen 7 5800X's 27,712 — a 21.8% lead for the Ryzen 7 5800X. L3 cache: 16 MB (total) on the Ryzen 5 8645HS vs 32 MB on the Ryzen 7 5800X.

Feature	Ryzen 5 8645HS	Ryzen 7 5800X
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5 GHz+6%	4.7 GHz
Base Clock	4.3 GHz+13%	3.8 GHz
L3 Cache	16 MB (total)	32 MB+100%
L2 Cache	1 MB (per core)+100%	512K (per core)
Process	4 nm-43%	7 nm, 12 nm
Architecture	Hawk Point-HS (Zen 4) (2023−2024)	Vermeer (Zen 3) (2020−2022)
PassMark	22,257	27,712+25%
Cinebench R23 Multi	13,316	—
Geekbench 6 Single	2,574	—
Geekbench 6 Multi	10,675	—

🧠

Memory & Platform

The Ryzen 5 8645HS uses the FP8 socket (PCIe 4.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5x-7500 on the Ryzen 5 8645HS versus DDR4-3200 on the Ryzen 7 5800X — the Ryzen 5 8645HS supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 8645HS 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 8645HS) vs 24 (Ryzen 7 5800X) — the Ryzen 7 5800X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 5 8645HS) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).

Feature	Ryzen 5 8645HS	Ryzen 7 5800X
Socket	FP8	AM4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	LPDDR5x-7500+25%	DDR4-3200
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	24+20%

🔧

Advanced Features

Only the Ryzen 7 5800X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 5 8645HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (SVM) (Ryzen 5 8645HS) vs AMD-V (Ryzen 7 5800X). The Ryzen 5 8645HS includes integrated graphics (Radeon 760M), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 5 8645HS targets Gaming, Ryzen 7 5800X targets Desktop. Direct competitor: Ryzen 5 8645HS rivals Core i5-13500H.