Pentium Gold 6405U vs Ryzen 7 3700X

Pentium Gold 6405U vs Ryzen 7 3700X Performance Spectrum

Pentium Gold 6405U

2 / 4

1,320

0.0%

Celeron N3010

Pentium D 940

Core 2 Duo E6750

Celeron Dual-Core T3100

22,430

+1599.2%

Ryzen Threadripper PRO 3955WX

Ryzen 9 9900X3D

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

About PassMark

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.

Pentium Gold 6405U vs Ryzen 7 3700X FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Pentium Gold 6405U vs Ryzen 7 3700X: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Pentium Gold 6405U

2019

Why buy it

✅Draws 1W instead of 65W, a 64W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 3700X across 46 shared CPU benchmark tests.
❌Lower PassMark (1,320 vs 22,430).
❌Smaller total L3 cache (2 MB vs 32 MB).

Ryzen 7 3700X

2019

Why buy it

✅Better for gaming: +694.3% higher average FPS across 46 shared CPU benchmark tests.
✅+1500% larger total L3 cache (32 MB vs 2 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $329 MSRP, while Pentium Gold 6405U mostly shows up through inconsistent older-market listings.
❌6400% higher power demand at 65W vs 1W.

Quick Answers

So, is Ryzen 7 3700X better than Pentium Gold 6405U?

Yes. Ryzen 7 3700X is the better all-around CPU here. It gives you a 694.3% average FPS lead across 46 shared CPU game tests in our data, 1599.2% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 3700X is the better pick. According to our tests, it delivers 694.3% more average FPS across 46 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 3700X is the stronger fit. You are getting 1599.2% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 1500% larger total L3 cache (32 MB vs 2 MB).

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

Ryzen 7 3700X is the better buy right now. Ryzen 7 3700X comes in at an unclear MSRP at $329 MSRP versus unclear MSRP, and it still gives you a 694.3% average FPS lead across 46 shared CPU game tests in our data. It is also 100.0% better value on MSRP (68.2 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 3700X makes more sense long term for 2026 and beyond. You are getting 1500% larger total L3 cache (32 MB vs 2 MB) and more multi-core headroom with 8 cores / 16 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium Gold 6405U vs Ryzen 7 3700X Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Pentium Gold 6405U

The Pentium Gold 6405U is manufactured by Intel. It was released in 31 October 2019 (6 years ago). It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 2 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,320 points. Launch price was $161.

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.

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Processing Power

The Pentium Gold 6405U packs 2 cores / 4 threads, while the Ryzen 7 3700X offers 8 cores / 16 threads — the Ryzen 7 3700X has 6 more cores. Boost clocks reach 2.4 GHz on the Pentium Gold 6405U versus 4.4 GHz on the Ryzen 7 3700X — a 58.8% clock advantage for the Ryzen 7 3700X (base: 2.4 GHz vs 3.6 GHz). The Pentium Gold 6405U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Ryzen 7 3700X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Pentium Gold 6405U scores 1,320 against the Ryzen 7 3700X's 22,430 — a 177.8% lead for the Ryzen 7 3700X. L3 cache: 2 MB on the Pentium Gold 6405U vs 32 MB on the Ryzen 7 3700X.

Feature	Pentium Gold 6405U	Ryzen 7 3700X
Cores / Threads	2 / 4	8 / 16+300%
Boost Clock	2.4 GHz	4.4 GHz+83%
Base Clock	2.4 GHz	3.6 GHz+50%
L3 Cache	2 MB	32 MB+1500%
L2 Cache	1 MB	512K (per core)+51100%
Process	14 nm	7 nm, 12 nm-50%
Architecture	Comet Lake-U (2019−2020)	Matisse (Zen 2) (2019−2020)
PassMark	1,320	22,430+1599%

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Memory & Platform

The Pentium Gold 6405U uses the FCBGA1528 socket (PCIe 3.0), while the Ryzen 7 3700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Pentium Gold 6405U	Ryzen 7 3700X
Socket	FCBGA1528	AM4
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	—	DDR4-3200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	24