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 3600

2019

Why buy it

✅+100% larger total L3 cache (32 MB vs 16 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Ryzen 5 8645HS.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 8645HS across 45 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (9,500 vs 13,316).
❌Launch MSRP is still $199 MSRP, while Ryzen 5 8645HS 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 8645HS moves to FP8 and DDR5.

Ryzen 5 8645HS

2023

Why buy it

✅Better for gaming: +11.8% higher average FPS across 45 shared CPU benchmark tests.
✅Draws 45W instead of 65W, a 20W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 760M, while Ryzen 5 3600 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (16 MB vs 32 MB).
❌No boxed cooler included, unlike Ryzen 5 3600.

Ryzen 5 3600

2019

Ryzen 5 8645HS

2023

Why buy it

✅+100% larger total L3 cache (32 MB vs 16 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Ryzen 5 8645HS.

Why buy it

✅Better for gaming: +11.8% higher average FPS across 45 shared CPU benchmark tests.
✅Draws 45W instead of 65W, a 20W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 760M, while Ryzen 5 3600 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 8645HS across 45 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (9,500 vs 13,316).
❌Launch MSRP is still $199 MSRP, while Ryzen 5 8645HS 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 8645HS moves to FP8 and DDR5.

Trade-offs

❌Smaller total L3 cache (16 MB vs 32 MB).
❌No boxed cooler included, unlike Ryzen 5 3600.

Quick Answers

So, is Ryzen 5 8645HS better than Ryzen 5 3600?

Yes. Ryzen 5 8645HS is the better overall CPU here. You are getting a 11.8% average FPS lead across 45 shared CPU game tests in our data, 40.2% better Cinebench R23 multi-core, 25.9% 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 8645HS is the better pick here. According to our tests, it delivers 11.8% more average FPS across 45 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 5 8645HS is the better fit. You are getting 40.2% 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 8645HS is still the faster CPU overall, but Ryzen 5 3600 makes more sense if price matters more than absolute performance. Ryzen 5 8645HS is at an unclear MSRP at unclear MSRP versus $199 MSRP, and it gives you a 11.8% average FPS lead across 45 shared CPU game tests in our data. Ryzen 5 3600 is also 100.0% better value on MSRP (88.9 vs 0.0 PassMark/$), 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 2019), a healthier platform with FP8 and DDR5 instead of AM4, 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.

Ryzen 5 3600 Benchmark Check

Ryzen 5 8645HS Benchmark Check

Path of Exile 2

Preset	Ryzen 5 3600	Ryzen 5 8645HS
1080p
low	200 FPS	265 FPS
medium	161 FPS	239 FPS
high	135 FPS	200 FPS
ultra	106 FPS	172 FPS
1440p
low	154 FPS	234 FPS
medium	119 FPS	191 FPS
high	96 FPS	156 FPS
ultra	75 FPS	138 FPS
4K
low	70 FPS	162 FPS
medium	58 FPS	135 FPS
high	46 FPS	104 FPS
ultra	36 FPS	91 FPS

Open Ryzen 5 3600 Open Ryzen 5 8645HS

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 3600	Ryzen 5 8645HS
1080p
low	442 FPS	426 FPS
medium	404 FPS	353 FPS
high	332 FPS	308 FPS
ultra	295 FPS	271 FPS
1440p
low	420 FPS	369 FPS
medium	359 FPS	320 FPS
high	303 FPS	281 FPS
ultra	263 FPS	240 FPS
4K
low	297 FPS	265 FPS
medium	259 FPS	235 FPS
high	230 FPS	218 FPS
ultra	201 FPS	183 FPS

Open Ryzen 5 3600 Open Ryzen 5 8645HS

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 3600	Ryzen 5 8645HS
1080p
low	442 FPS	556 FPS
medium	442 FPS	556 FPS
high	442 FPS	556 FPS
ultra	442 FPS	556 FPS
1440p
low	442 FPS	556 FPS
medium	442 FPS	556 FPS
high	442 FPS	520 FPS
ultra	432 FPS	449 FPS
4K
low	442 FPS	501 FPS
medium	361 FPS	445 FPS
high	305 FPS	380 FPS
ultra	242 FPS	315 FPS

Open Ryzen 5 3600 Open Ryzen 5 8645HS

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 3600	Ryzen 5 8645HS
1080p
low	442 FPS	556 FPS
medium	442 FPS	556 FPS
high	442 FPS	556 FPS
ultra	442 FPS	556 FPS
1440p
low	442 FPS	556 FPS
medium	442 FPS	556 FPS
high	442 FPS	556 FPS
ultra	442 FPS	545 FPS
4K
low	442 FPS	556 FPS
medium	442 FPS	506 FPS
high	413 FPS	450 FPS
ultra	357 FPS	386 FPS

Open Ryzen 5 3600 Open Ryzen 5 8645HS

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 3600 and Ryzen 5 8645HS

Ryzen 5 3600

The Ryzen 5 3600 is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (2019−2020) architecture. It features 6 cores and 12 threads. Base frequency is 3.6 GHz, with boost up to 4.2 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 17,685 points. Launch price was $199.

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.

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Processing Power

Both the Ryzen 5 3600 and Ryzen 5 8645HS share an identical 6-core/12-thread configuration. Boost clocks reach 4.2 GHz on the Ryzen 5 3600 versus 5 GHz on the Ryzen 5 8645HS — a 17.4% clock advantage for the Ryzen 5 8645HS (base: 3.6 GHz vs 4.3 GHz). The Ryzen 5 3600 uses the Matisse (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 5 8645HS uses Hawk Point-HS (Zen 4) (2023−2024) (4 nm). In PassMark, the Ryzen 5 3600 scores 17,685 against the Ryzen 5 8645HS's 22,257 — a 22.9% lead for the Ryzen 5 8645HS. Cinebench R23 multi-core: 9,500 vs 13,316 (33.5% advantage for the Ryzen 5 8645HS). Geekbench 6 single-core — the metric most relevant to gaming — records 1,295 vs 2,574, a 66.1% lead for the Ryzen 5 8645HS that directly translates to higher frame rates. Multi-core Geekbench: 1,898 vs 10,675 (139.6% advantage for the Ryzen 5 8645HS). L3 cache: 32 MB (total) on the Ryzen 5 3600 vs 16 MB (total) on the Ryzen 5 8645HS.

Feature	Ryzen 5 3600	Ryzen 5 8645HS
Cores / Threads	6 / 12	6 / 12
Boost Clock	4.2 GHz	5 GHz+19%
Base Clock	3.6 GHz	4.3 GHz+19%
L3 Cache	32 MB (total)+100%	16 MB (total)
L2 Cache	512K (per core)	1 MB (per core)+100%
Process	7 nm, 12 nm	4 nm-43%
Architecture	Matisse (2019−2020)	Hawk Point-HS (Zen 4) (2023−2024)
PassMark	17,685	22,257+26%
Cinebench R23 Multi	9,500	13,316+40%
Geekbench 6 Single	1,295	2,574+99%
Geekbench 6 Multi	1,898	10,675+462%

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Memory & Platform

The Ryzen 5 3600 uses the AM4 socket (PCIe 4.0), while the Ryzen 5 8645HS uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 5 3600 versus LPDDR5x-7500 on the Ryzen 5 8645HS — 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: 24 (Ryzen 5 3600) vs 20 (Ryzen 5 8645HS) — the Ryzen 5 3600 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD B550,AMD X570,AMD B450,AMD X470 (Ryzen 5 3600) and SoC (Ryzen 5 8645HS).

Feature	Ryzen 5 3600	Ryzen 5 8645HS
Socket	AM4	FP8
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	LPDDR5x-7500+25%
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	24+20%	20

🔧

Advanced Features

Only the Ryzen 5 3600 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: Yes (Ryzen 5 3600) vs AMD-V (SVM) (Ryzen 5 8645HS). The Ryzen 5 8645HS includes integrated graphics (Radeon 760M), while the Ryzen 5 3600 requires a dedicated GPU. Primary use case: Ryzen 5 3600 targets Gaming/Budget Workstation, Ryzen 5 8645HS targets Gaming. Direct competitor: Ryzen 5 3600 rivals Core i5-10400; Ryzen 5 8645HS rivals Core i5-13500H.