Core i7-8700K vs Ryzen 9 5900H

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.

Core i7-8700K

2017

Why buy it

✅Better for gaming: +6.0% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 630, while Ryzen 9 5900H needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (12 MB vs 16 MB).
❌Launch MSRP is still $359 MSRP, while Ryzen 9 5900H mostly shows up through inconsistent older-market listings.
❌111.1% higher power demand at 95W vs 45W.

Ryzen 9 5900H

2021

Why buy it

✅+33.3% larger total L3 cache (16 MB vs 12 MB).
✅Draws 45W instead of 95W, a 50W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-8700K across 50 shared CPU benchmark tests.
❌Lower PassMark (13,510 vs 13,572).
❌No integrated graphics, while Core i7-8700K can still boot and troubleshoot without a discrete GPU.

Core i7-8700K

2017

Ryzen 9 5900H

2021

Why buy it

✅Better for gaming: +6.0% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 630, while Ryzen 9 5900H needs a discrete GPU.

Why buy it

✅+33.3% larger total L3 cache (16 MB vs 12 MB).
✅Draws 45W instead of 95W, a 50W reduction.

Trade-offs

❌Smaller total L3 cache (12 MB vs 16 MB).
❌Launch MSRP is still $359 MSRP, while Ryzen 9 5900H mostly shows up through inconsistent older-market listings.
❌111.1% higher power demand at 95W vs 45W.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-8700K across 50 shared CPU benchmark tests.
❌Lower PassMark (13,510 vs 13,572).
❌No integrated graphics, while Core i7-8700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-8700K better than Ryzen 9 5900H?

Yes. Core i7-8700K is the better overall CPU here. You are getting a 6.0% average FPS lead across 50 shared CPU game tests in our data and 0.5% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i7-8700K is the better pick here. According to our tests, it delivers 6.0% 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, Core i7-8700K is the better fit. You are getting 0.5% better PassMark, backed by 6 cores and 12 threads.

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

Core i7-8700K is the smarter buy today. Core i7-8700K is at an unclear MSRP at $359 MSRP versus unclear MSRP, and it gives you a 6.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (37.8 vs 0.0 PassMark/$), 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 9 5900H is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2017) and 33.3% larger total L3 cache (16 MB vs 12 MB). That makes it the safer long-term pick.

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.

Core i7-8700K Benchmark Check

Ryzen 9 5900H Benchmark Check

Path of Exile 2

Preset	Core i7-8700K	Ryzen 9 5900H
1080p
low	214 FPS	181 FPS
medium	173 FPS	147 FPS
high	140 FPS	122 FPS
ultra	103 FPS	99 FPS
1440p
low	181 FPS	147 FPS
medium	145 FPS	116 FPS
high	116 FPS	95 FPS
ultra	86 FPS	78 FPS
4K
low	92 FPS	81 FPS
medium	79 FPS	69 FPS
high	62 FPS	55 FPS
ultra	48 FPS	43 FPS

Open Core i7-8700K Open Ryzen 9 5900H

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-8700K	Ryzen 9 5900H
1080p
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	321 FPS	327 FPS
ultra	275 FPS	288 FPS
1440p
low	339 FPS	338 FPS
medium	326 FPS	338 FPS
high	292 FPS	300 FPS
ultra	250 FPS	256 FPS
4K
low	334 FPS	278 FPS
medium	276 FPS	246 FPS
high	248 FPS	227 FPS
ultra	204 FPS	197 FPS

Open Core i7-8700K Open Ryzen 9 5900H

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-8700K	Ryzen 9 5900H
1080p
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	339 FPS	338 FPS
ultra	339 FPS	338 FPS
1440p
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	339 FPS	338 FPS
ultra	339 FPS	338 FPS
4K
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	339 FPS	326 FPS
ultra	303 FPS	259 FPS

Open Core i7-8700K Open Ryzen 9 5900H

League of Legends

League of Legends

Valorant

Preset	Core i7-8700K	Ryzen 9 5900H
1080p
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	339 FPS	338 FPS
ultra	339 FPS	338 FPS
1440p
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	339 FPS	338 FPS
ultra	339 FPS	338 FPS
4K
low	339 FPS	338 FPS
medium	339 FPS	338 FPS
high	339 FPS	338 FPS
ultra	339 FPS	338 FPS

Open Core i7-8700K Open Ryzen 9 5900H

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-8700K and Ryzen 9 5900H

Core i7-8700K

The Core i7-8700K is manufactured by Intel. It was released in 5 October 2017 (8 years ago). It is based on the Coffee Lake-S (2017−2018) architecture. It features 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.7 GHz. L3 cache: 12288 kB. L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 13,572 points. Launch price was $359.

Ryzen 9 5900H

The Ryzen 9 5900H is manufactured by AMD. It was released in 7 January 2021 (4 years ago). It is based on the Cezanne U (Zen 3) (2021−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.6 GHz. L3 cache: 16 MB. L2 cache: 4 MB. Built on 7 nm process technology. Socket: FP6. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 13,510 points. Launch price was $149.

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Processing Power

The Core i7-8700K packs 6 cores / 12 threads, while the Ryzen 9 5900H offers 8 cores / 16 threads — the Ryzen 9 5900H has 2 more cores. Boost clocks reach 4.7 GHz on the Core i7-8700K versus 4.6 GHz on the Ryzen 9 5900H — a 2.2% clock advantage for the Core i7-8700K (base: 3.7 GHz vs 3.3 GHz). The Core i7-8700K uses the Coffee Lake-S (2017−2018) architecture (14 nm), while the Ryzen 9 5900H uses Cezanne U (Zen 3) (2021−2022) (7 nm). In PassMark, the Core i7-8700K scores 13,572 against the Ryzen 9 5900H's 13,510 — a 0.5% lead for the Core i7-8700K. L3 cache: 12288 kB on the Core i7-8700K vs 16 MB on the Ryzen 9 5900H.

Feature	Core i7-8700K	Ryzen 9 5900H
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.7 GHz+2%	4.6 GHz
Base Clock	3.7 GHz+12%	3.3 GHz
L3 Cache	12288 kB	16 MB+33%
L2 Cache	256K (per core)	4 MB+1500%
Process	14 nm	7 nm-50%
Architecture	Coffee Lake-S (2017−2018)	Cezanne U (Zen 3) (2021−2022)
PassMark	13,572	13,510

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Memory & Platform

The Core i7-8700K uses the LGA1151 socket (PCIe 3.0), while the Ryzen 9 5900H uses FP6 (PCIe 4.0) — making them incompatible on the same motherboard.