Core i9-11900F 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.

Core i9-11900F

2021

Why buy it

✅Draws 65W instead of 105W, a 40W reduction.

Trade-offs

❌Lower PassMark (22,052 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Ryzen 7 5800X

2020

Why buy it

✅+25.7% 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 Core i9-11900F mostly shows up through inconsistent older-market listings.
❌61.5% higher power demand at 105W vs 65W.

Core i9-11900F

2021

Ryzen 7 5800X

2020

Why buy it

✅Draws 65W instead of 105W, a 40W reduction.

Why buy it

✅+25.7% 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 (22,052 vs 27,712).
❌Smaller total L3 cache (16 MB vs 32 MB).

Trade-offs

❌Launch MSRP is still $449 MSRP, while Core i9-11900F mostly shows up through inconsistent older-market listings.
❌61.5% higher power demand at 105W vs 65W.

Quick Answers

So, is Core i9-11900F better than Ryzen 7 5800X?

It depends on what matters more to you. For gaming, Core i9-11900F is ahead with 8.5% higher max boost clock. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 5800X pulls ahead with 25.7% 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 25.7% 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?

Core i9-11900F is still the faster CPU overall, but Ryzen 7 5800X makes more sense if price matters more than absolute performance. Core i9-11900F is at an unclear MSRP at unclear MSRP versus $449 MSRP, and it gives you 8.5% higher max boost clock. The trade-off is that Ryzen 7 5800X is still stronger for heavier multi-core work with 25.7% better PassMark. Ryzen 7 5800X is also 100.0% better value on MSRP (61.7 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper. That said, if you already own a compatible AM4 + DDR4 setup, Ryzen 7 5800X can still make sense as a platform-matched option because it avoids a motherboard and RAM swap, but on MSRP alone you would want to find it meaningfully cheaper in real-world listings before that path becomes easy to justify.

Which one is more future-proof for 2026 and beyond?

Core i9-11900F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2020). 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 i9-11900F Benchmark Check

Ryzen 7 5800X Benchmark Check

Path of Exile 2

Preset	Core i9-11900F	Ryzen 7 5800X
1080p
low	286 FPS	206 FPS
medium	256 FPS	178 FPS
high	217 FPS	146 FPS
ultra	187 FPS	110 FPS
1440p
low	235 FPS	170 FPS
medium	189 FPS	142 FPS
high	155 FPS	115 FPS
ultra	137 FPS	88 FPS
4K
low	164 FPS	83 FPS
medium	133 FPS	74 FPS
high	103 FPS	59 FPS
ultra	91 FPS	46 FPS

Open Core i9-11900F Open Ryzen 7 5800X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i9-11900F	Ryzen 7 5800X
1080p
low	551 FPS	662 FPS
medium	507 FPS	558 FPS
high	442 FPS	466 FPS
ultra	390 FPS	417 FPS
1440p
low	551 FPS	563 FPS
medium	473 FPS	493 FPS
high	407 FPS	423 FPS
ultra	346 FPS	361 FPS
4K
low	386 FPS	350 FPS
medium	328 FPS	308 FPS
high	309 FPS	288 FPS
ultra	263 FPS	250 FPS

Open Core i9-11900F Open Ryzen 7 5800X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i9-11900F	Ryzen 7 5800X
1080p
low	551 FPS	693 FPS
medium	551 FPS	651 FPS
high	551 FPS	570 FPS
ultra	521 FPS	464 FPS
1440p
low	551 FPS	693 FPS
medium	551 FPS	573 FPS
high	504 FPS	498 FPS
ultra	433 FPS	413 FPS
4K
low	535 FPS	484 FPS
medium	445 FPS	410 FPS
high	396 FPS	363 FPS
ultra	332 FPS	302 FPS

Open Core i9-11900F Open Ryzen 7 5800X

League of Legends

League of Legends

Valorant

Preset	Core i9-11900F	Ryzen 7 5800X
1080p
low	551 FPS	693 FPS
medium	551 FPS	693 FPS
high	551 FPS	693 FPS
ultra	551 FPS	693 FPS
1440p
low	551 FPS	693 FPS
medium	551 FPS	693 FPS
high	551 FPS	672 FPS
ultra	551 FPS	593 FPS
4K
low	551 FPS	604 FPS
medium	551 FPS	550 FPS
high	503 FPS	495 FPS
ultra	435 FPS	436 FPS

Open Core i9-11900F Open Ryzen 7 5800X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i9-11900F and Ryzen 7 5800X

Core i9-11900F

The Core i9-11900F is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 8 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 22,052 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.

⚡

Processing Power

Both the Core i9-11900F and Ryzen 7 5800X share an identical 8-core/16-thread configuration. Boost clocks reach 5.1 GHz on the Core i9-11900F versus 4.7 GHz on the Ryzen 7 5800X — a 8.2% clock advantage for the Core i9-11900F (base: 2.5 GHz vs 3.8 GHz). The Core i9-11900F uses the Rocket Lake (2021) architecture (14 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core i9-11900F scores 22,052 against the Ryzen 7 5800X's 27,712 — a 22.7% lead for the Ryzen 7 5800X. L3 cache: 16 MB (total) on the Core i9-11900F vs 32 MB on the Ryzen 7 5800X.

Feature	Core i9-11900F	Ryzen 7 5800X
Cores / Threads	8 / 16	8 / 16
Boost Clock	5.1 GHz+9%	4.7 GHz
Base Clock	2.5 GHz	3.8 GHz+52%
L3 Cache	16 MB (total)	32 MB+100%
L2 Cache	256K (per core)	512K (per core)+100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Rocket Lake (2021)	Vermeer (Zen 3) (2020−2022)
PassMark	22,052	27,712+26%

🧠

Memory & Platform

The Core i9-11900F uses the LGA1200 socket (PCIe 4.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.