Ryzen 7 3700X vs Ryzen 7 7840H

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 7 3700X

2019

Why buy it

✅+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

❌Worse for gaming: lower average FPS than Ryzen 7 7840H across 4 shared CPU benchmark tests.
❌Lower PassMark (22,430 vs 27,832).
❌Launch MSRP is still $329 MSRP, while Ryzen 7 7840H mostly shows up through inconsistent older-market listings.
❌85.7% higher power demand at 65W vs 35W.
❌Older platform position on AM4 with DDR4, while Ryzen 7 7840H moves to FP8 and DDR5.

Ryzen 7 7840H

2023

Why buy it

✅Better for gaming: +13.9% higher average FPS across 4 shared CPU benchmark tests.
✅Draws 35W instead of 65W, a 30W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Smaller total L3 cache (16 MB vs 32 MB).

Ryzen 7 3700X

2019

Ryzen 7 7840H

2023

Why buy it

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

Why buy it

✅Better for gaming: +13.9% higher average FPS across 4 shared CPU benchmark tests.
✅Draws 35W instead of 65W, a 30W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7840H across 4 shared CPU benchmark tests.
❌Lower PassMark (22,430 vs 27,832).
❌Launch MSRP is still $329 MSRP, while Ryzen 7 7840H mostly shows up through inconsistent older-market listings.
❌85.7% higher power demand at 65W vs 35W.
❌Older platform position on AM4 with DDR4, while Ryzen 7 7840H moves to FP8 and DDR5.

Trade-offs

❌Smaller total L3 cache (16 MB vs 32 MB).

Quick Answers

So, is Ryzen 7 7840H better than Ryzen 7 3700X?

Yes. Ryzen 7 7840H is the better overall CPU here. You are getting a 13.9% average FPS lead across 4 shared CPU game tests in our data, 24.1% better 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 7 7840H is the better pick here. According to our tests, it delivers 13.9% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7840H is the better fit. You are getting 24.1% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 7 7840H is still the faster CPU overall, but Ryzen 7 3700X makes more sense if price matters more than absolute performance. Ryzen 7 7840H is at an unclear MSRP at unclear MSRP versus $329 MSRP, and it gives you a 13.9% average FPS lead across 4 shared CPU game tests in our data. Ryzen 7 3700X is also 100.0% better value on MSRP (68.2 vs 0.0 PassMark/$), 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 7 7840H 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 8 cores / 16 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 7 3700X Benchmark Check

Ryzen 7 7840H Benchmark Check

Path of Exile 2

Preset	Ryzen 7 3700X	Ryzen 7 7840H
1080p
low	200 FPS	268 FPS
medium	163 FPS	241 FPS
high	137 FPS	206 FPS
ultra	110 FPS	176 FPS
1440p
low	156 FPS	234 FPS
medium	121 FPS	191 FPS
high	100 FPS	158 FPS
ultra	80 FPS	138 FPS
4K
low	84 FPS	160 FPS
medium	71 FPS	132 FPS
high	56 FPS	102 FPS
ultra	44 FPS	89 FPS

Open Ryzen 7 3700X Open Ryzen 7 7840H

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 7 3700X	Ryzen 7 7840H
1080p
low	561 FPS	499 FPS
medium	525 FPS	415 FPS
high	428 FPS	358 FPS
ultra	383 FPS	318 FPS
1440p
low	545 FPS	437 FPS
medium	471 FPS	383 FPS
high	394 FPS	331 FPS
ultra	337 FPS	280 FPS
4K
low	350 FPS	290 FPS
medium	304 FPS	265 FPS
high	274 FPS	250 FPS
ultra	242 FPS	215 FPS

Open Ryzen 7 3700X Open Ryzen 7 7840H

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 7 3700X	Ryzen 7 7840H
1080p
low	561 FPS	696 FPS
medium	561 FPS	696 FPS
high	561 FPS	696 FPS
ultra	561 FPS	650 FPS
1440p
low	561 FPS	696 FPS
medium	561 FPS	637 FPS
high	538 FPS	548 FPS
ultra	470 FPS	464 FPS
4K
low	499 FPS	534 FPS
medium	394 FPS	460 FPS
high	343 FPS	409 FPS
ultra	275 FPS	344 FPS

Open Ryzen 7 3700X Open Ryzen 7 7840H

League of Legends

League of Legends

Valorant

Preset	Ryzen 7 3700X	Ryzen 7 7840H
1080p
low	561 FPS	696 FPS
medium	561 FPS	696 FPS
high	561 FPS	696 FPS
ultra	561 FPS	696 FPS
1440p
low	561 FPS	696 FPS
medium	561 FPS	696 FPS
high	561 FPS	696 FPS
ultra	555 FPS	631 FPS
4K
low	561 FPS	619 FPS
medium	501 FPS	553 FPS
high	447 FPS	496 FPS
ultra	396 FPS	434 FPS

Open Ryzen 7 3700X Open Ryzen 7 7840H

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 7 3700X and Ryzen 7 7840H

Ryzen 7 3700X

The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. 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: 22,430 points. Launch price was $329.

Ryzen 7 7840H

The Ryzen 7 7840H is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5-5600. Passmark benchmark score: 27,832 points. Launch price was $299.

⚡

Processing Power

Both the Ryzen 7 3700X and Ryzen 7 7840H share an identical 8-core/16-thread configuration. Boost clocks reach 4.4 GHz on the Ryzen 7 3700X versus 5.1 GHz on the Ryzen 7 7840H — a 14.7% clock advantage for the Ryzen 7 7840H (base: 3.6 GHz vs 3.8 GHz). The Ryzen 7 3700X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Ryzen 7 7840H uses Phoenix (2023−2024) (4 nm). In PassMark, the Ryzen 7 3700X scores 22,430 against the Ryzen 7 7840H's 27,832 — a 21.5% lead for the Ryzen 7 7840H. L3 cache: 32 MB on the Ryzen 7 3700X vs 16 MB (total) on the Ryzen 7 7840H.

Feature	Ryzen 7 3700X	Ryzen 7 7840H
Cores / Threads	8 / 16	8 / 16
Boost Clock	4.4 GHz	5.1 GHz+16%
Base Clock	3.6 GHz	3.8 GHz+6%
L3 Cache	32 MB+100%	16 MB (total)
L2 Cache	512K (per core)	1 MB (per core)+100%
Process	7 nm, 12 nm	4 nm-43%
Architecture	Matisse (Zen 2) (2019−2020)	Phoenix (2023−2024)
PassMark	22,430	27,832+24%

🧠

Memory & Platform

The Ryzen 7 3700X uses the AM4 socket (PCIe 4.0), while the Ryzen 7 7840H uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.