Ryzen 5 8400F vs Ryzen 7 PRO 7840U

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 8400F

2024

Why buy it

✅+0.1% higher PassMark.

Trade-offs

❌Launch MSRP is still $303 MSRP, while Ryzen 7 PRO 7840U mostly shows up through inconsistent older-market listings.
❌712.5% higher power demand at 65W vs 8W.

Ryzen 7 PRO 7840U

2023

Why buy it

✅Draws 8W instead of 65W, a 57W reduction.

Trade-offs

❌Lower PassMark (24,531 vs 24,554).

Ryzen 5 8400F

2024

Ryzen 7 PRO 7840U

2023

Why buy it

✅+0.1% higher PassMark.

Why buy it

✅Draws 8W instead of 65W, a 57W reduction.

Trade-offs

❌Launch MSRP is still $303 MSRP, while Ryzen 7 PRO 7840U mostly shows up through inconsistent older-market listings.
❌712.5% higher power demand at 65W vs 8W.

Trade-offs

❌Lower PassMark (24,531 vs 24,554).

Quick Answers

So, is Ryzen 5 8400F better than Ryzen 7 PRO 7840U?

It depends on what matters more to you. For gaming, Ryzen 7 PRO 7840U is ahead with a 1.7% average FPS lead across 3 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 5 8400F pulls ahead with 0.1% better PassMark.

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

For streaming, content creation, and heavier multitasking, Ryzen 5 8400F is the better fit. You are getting 0.1% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 8400F is the smarter buy today. Ryzen 5 8400F is at an unclear MSRP at $303 MSRP versus unclear MSRP, and it gives you 0.1% better PassMark. The trade-off is that Ryzen 7 PRO 7840U is still the better pure gaming CPU with a 1.7% average FPS lead across 3 shared CPU game tests in our data. It is also 100.0% better value on MSRP (81.0 vs 0.0 PassMark/$), 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 5 8400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023) and more multi-core headroom with 6 cores / 12 threads instead of 8/16. 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 8400F Benchmark Check

Ryzen 7 PRO 7840U Benchmark Check

Path of Exile 2

Preset	Ryzen 5 8400F	Ryzen 7 PRO 7840U
1080p
low	178 FPS	259 FPS
medium	151 FPS	238 FPS
high	123 FPS	201 FPS
ultra	102 FPS	173 FPS
1440p
low	151 FPS	229 FPS
medium	124 FPS	191 FPS
high	101 FPS	155 FPS
ultra	84 FPS	137 FPS
4K
low	81 FPS	159 FPS
medium	72 FPS	134 FPS
high	58 FPS	104 FPS
ultra	45 FPS	92 FPS

Open Ryzen 5 8400F Open Ryzen 7 PRO 7840U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 8400F	Ryzen 7 PRO 7840U
1080p
low	374 FPS	491 FPS
medium	316 FPS	408 FPS
high	278 FPS	356 FPS
ultra	238 FPS	319 FPS
1440p
low	326 FPS	429 FPS
medium	282 FPS	376 FPS
high	255 FPS	328 FPS
ultra	214 FPS	281 FPS
4K
low	243 FPS	283 FPS
medium	215 FPS	259 FPS
high	198 FPS	248 FPS
ultra	165 FPS	214 FPS

Open Ryzen 5 8400F Open Ryzen 7 PRO 7840U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 8400F	Ryzen 7 PRO 7840U
1080p
low	614 FPS	613 FPS
medium	614 FPS	613 FPS
high	614 FPS	613 FPS
ultra	614 FPS	522 FPS
1440p
low	614 FPS	613 FPS
medium	603 FPS	613 FPS
high	522 FPS	523 FPS
ultra	446 FPS	449 FPS
4K
low	492 FPS	523 FPS
medium	431 FPS	457 FPS
high	369 FPS	405 FPS
ultra	303 FPS	343 FPS

Open Ryzen 5 8400F Open Ryzen 7 PRO 7840U

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 8400F	Ryzen 7 PRO 7840U
1080p
low	614 FPS	613 FPS
medium	614 FPS	613 FPS
high	614 FPS	613 FPS
ultra	614 FPS	613 FPS
1440p
low	614 FPS	613 FPS
medium	614 FPS	613 FPS
high	614 FPS	613 FPS
ultra	601 FPS	549 FPS
4K
low	610 FPS	558 FPS
medium	548 FPS	502 FPS
high	490 FPS	449 FPS
ultra	426 FPS	385 FPS

Open Ryzen 5 8400F Open Ryzen 7 PRO 7840U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 8400F and Ryzen 7 PRO 7840U

Ryzen 5 8400F

The Ryzen 5 8400F is manufactured by AMD. It was released in 1 April 2024 (1 year ago). It is based on the Phoenix (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 4.2 GHz, with boost up to 4.7 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 24,554 points. Launch price was $170.

Ryzen 7 PRO 7840U

The Ryzen 7 PRO 7840U is manufactured by AMD. It was released in 3 May 2023 (2 years ago). It is based on the Phoenix (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP8. Thermal design power (TDP): 28 Watt. Memory support: LPDDR5x, DDR5. Passmark benchmark score: 24,531 points. Launch price was $299.

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Processing Power

The Ryzen 5 8400F packs 6 cores / 12 threads, while the Ryzen 7 PRO 7840U offers 8 cores / 16 threads — the Ryzen 7 PRO 7840U has 2 more cores. Boost clocks reach 4.7 GHz on the Ryzen 5 8400F versus 5.1 GHz on the Ryzen 7 PRO 7840U — a 8.2% clock advantage for the Ryzen 7 PRO 7840U (base: 4.2 GHz vs 3.3 GHz). The Ryzen 5 8400F uses the Phoenix (2023−2024) architecture (4 nm), while the Ryzen 7 PRO 7840U uses Phoenix (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 5 8400F scores 24,554 against the Ryzen 7 PRO 7840U's 24,531 — a 0.1% lead for the Ryzen 5 8400F. L3 cache: 16 MB (total) on the Ryzen 5 8400F vs 16 MB on the Ryzen 7 PRO 7840U.

Feature	Ryzen 5 8400F	Ryzen 7 PRO 7840U
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.7 GHz	5.1 GHz+9%
Base Clock	4.2 GHz+27%	3.3 GHz
L3 Cache	16 MB (total)	16 MB
L2 Cache	1 MB (per core)	8 MB+700%
Process	4 nm	4 nm
Architecture	Phoenix (2023−2024)	Phoenix (Zen 4) (2023)
PassMark	24,554	24,531

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Memory & Platform

The Ryzen 5 8400F uses the AM5 socket (PCIe 4.0), while the Ryzen 7 PRO 7840U uses FP7/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.