Ryzen 5 PRO 8645HS vs Ryzen 7 5800X

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 PRO 8645HS

2024

Why buy it

✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FP7 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Lower PassMark (23,227 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Ryzen 7 5800X

2020

Why buy it

✅+19.3% higher PassMark.
✅+100% larger total L3 cache (32 MB vs 16 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $449 MSRP, while Ryzen 5 PRO 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 PRO 8645HS moves to FP7 and DDR5.

Ryzen 5 PRO 8645HS

2024

Ryzen 7 5800X

2020

Why buy it

✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FP7 with DDR5 support instead of AM4 and DDR4.

Why buy it

✅+19.3% higher PassMark.
✅+100% larger total L3 cache (32 MB vs 16 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (23,227 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Trade-offs

❌Launch MSRP is still $449 MSRP, while Ryzen 5 PRO 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 PRO 8645HS moves to FP7 and DDR5.

Quick Answers

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

It depends on what matters more to you. For gaming, Ryzen 5 PRO 8645HS is ahead with a 0.0% average FPS lead across 48 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 5800X pulls ahead with 19.3% 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 19.3% 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 PRO 8645HS is still the faster CPU overall, but Ryzen 7 5800X makes more sense if price matters more than absolute performance. Ryzen 5 PRO 8645HS is at an unclear MSRP at unclear MSRP versus $449 MSRP, and it gives you a 0.0% average FPS lead across 48 shared CPU game tests in our data. The trade-off is that Ryzen 7 5800X is still stronger for heavier multi-core work with 19.3% better PassMark. Ryzen 7 5800X is also 100.0% better value on MSRP (61.7 vs 0.0 PassMark/$), 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 PRO 8645HS is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2020) and a healthier platform with FP7 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 PRO 8645HS Benchmark Check

Ryzen 7 5800X Benchmark Check

Path of Exile 2

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 5800X
1080p
low	265 FPS	206 FPS
medium	239 FPS	178 FPS
high	204 FPS	146 FPS
ultra	174 FPS	110 FPS
1440p
low	232 FPS	170 FPS
medium	190 FPS	142 FPS
high	157 FPS	115 FPS
ultra	137 FPS	88 FPS
4K
low	158 FPS	83 FPS
medium	130 FPS	74 FPS
high	102 FPS	59 FPS
ultra	88 FPS	46 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 5800X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 5800X
1080p
low	426 FPS	662 FPS
medium	358 FPS	558 FPS
high	314 FPS	466 FPS
ultra	275 FPS	417 FPS
1440p
low	371 FPS	563 FPS
medium	325 FPS	493 FPS
high	288 FPS	423 FPS
ultra	244 FPS	361 FPS
4K
low	268 FPS	350 FPS
medium	240 FPS	308 FPS
high	224 FPS	288 FPS
ultra	187 FPS	250 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 5800X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 5800X
1080p
low	581 FPS	693 FPS
medium	581 FPS	651 FPS
high	581 FPS	570 FPS
ultra	581 FPS	464 FPS
1440p
low	581 FPS	693 FPS
medium	581 FPS	573 FPS
high	522 FPS	498 FPS
ultra	446 FPS	413 FPS
4K
low	492 FPS	484 FPS
medium	431 FPS	410 FPS
high	369 FPS	363 FPS
ultra	303 FPS	302 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 5800X

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 PRO 8645HS	Ryzen 7 5800X
1080p
low	581 FPS	693 FPS
medium	581 FPS	693 FPS
high	581 FPS	693 FPS
ultra	581 FPS	693 FPS
1440p
low	581 FPS	693 FPS
medium	581 FPS	693 FPS
high	581 FPS	672 FPS
ultra	581 FPS	593 FPS
4K
low	581 FPS	604 FPS
medium	548 FPS	550 FPS
high	490 FPS	495 FPS
ultra	426 FPS	436 FPS

Open Ryzen 5 PRO 8645HS Open Ryzen 7 5800X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

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

Ryzen 5 PRO 8645HS

The Ryzen 5 PRO 8645HS is manufactured by AMD. It was released in 16 April 2024 (1 year ago). It is based on the Hawk Point (2024−2025) 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: FP7. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 23,227 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 PRO 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 PRO 8645HS versus 4.7 GHz on the Ryzen 7 5800X — a 6.2% clock advantage for the Ryzen 5 PRO 8645HS (base: 4.3 GHz vs 3.8 GHz). The Ryzen 5 PRO 8645HS uses the Hawk Point (2024−2025) architecture (4 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 5 PRO 8645HS scores 23,227 against the Ryzen 7 5800X's 27,712 — a 17.6% lead for the Ryzen 7 5800X. L3 cache: 16 MB (total) on the Ryzen 5 PRO 8645HS vs 32 MB on the Ryzen 7 5800X.

Feature	Ryzen 5 PRO 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 (2024−2025)	Vermeer (Zen 3) (2020−2022)
PassMark	23,227	27,712+19%

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Memory & Platform

The Ryzen 5 PRO 8645HS uses the FP7 socket (PCIe 4.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.