Athlon X4 845 vs Pentium Gold G6405

Athlon X4 845 vs Pentium Gold G6405 Performance Spectrum

Athlon X4 845

4 / 4

3,768

0.0%

Ryzen Threadripper 3990X

Pentium Gold G6405

2 / 4

3,817

+1.3%

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.

Athlon X4 845 vs Pentium Gold G6405 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.

Athlon X4 845 vs Pentium Gold G6405: Pros, Cons & Final Verdict

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

Athlon X4 845

2016

Why buy it

✅Better for gaming: +5.1% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (8 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (3,768 vs 3,817).
❌Launch MSRP is still $70 MSRP, while Pentium Gold G6405 mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.

Pentium Gold G6405

2021

Why buy it

✅+1.3% higher PassMark.
✅Draws 15W instead of 65W, a 50W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Athlon X4 845 across 50 shared CPU benchmark tests.

Quick Answers

So, is Pentium Gold G6405 better than Athlon X4 845?

It depends on what you want from the system. For gaming, Athlon X4 845 is ahead with a 5.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium Gold G6405 pulls ahead with 1.3% better PassMark.

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

For streaming, content creation, and heavier multitasking, Pentium Gold G6405 is the stronger fit. You are getting 1.3% better PassMark, backed by 2 cores and 4 threads.

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

Pentium Gold G6405 is still the much better call for a fresh build. Pentium Gold G6405 comes in at an unclear MSRP at unclear MSRP versus $70 MSRP, and it still gives you 1.3% better PassMark. Athlon X4 845 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2016 platform. Even with 100.0% better value on paper (53.8 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on FM2+.

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

Pentium Gold G6405 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2016) and more multi-core headroom with 2 cores / 4 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon X4 845 vs Pentium Gold G6405 Technical Specifications

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

Athlon X4 845

The Athlon X4 845 is manufactured by AMD. It was released in 2009-01-01. It is based on the Carrizo (2015−2018) architecture. It features 4 cores and 4 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L2 cache: 2 MB. Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 Watt. Memory support: DDR3-2133. Passmark benchmark score: 3,768 points. Launch price was $149.

Pentium Gold G6405

The Pentium Gold G6405 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 2 cores and 4 threads. Base frequency is 4.1 GHz, with boost up to 4.1 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2666. Passmark benchmark score: 3,817 points. Launch price was $64.

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Processing Power

The Athlon X4 845 packs 4 cores / 4 threads, while the Pentium Gold G6405 offers 2 cores / 4 threads — the Athlon X4 845 has 2 more cores. Boost clocks reach 3.8 GHz on the Athlon X4 845 versus 4.1 GHz on the Pentium Gold G6405 — a 7.6% clock advantage for the Pentium Gold G6405 (base: 3.5 GHz vs 4.1 GHz). The Athlon X4 845 uses the Carrizo (2015−2018) architecture (28 nm), while the Pentium Gold G6405 uses Comet Lake-R (2021) (14 nm). In PassMark, the Athlon X4 845 scores 3,768 against the Pentium Gold G6405's 3,817 — a 1.3% lead for the Pentium Gold G6405.

Feature	Athlon X4 845	Pentium Gold G6405
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	3.8 GHz	4.1 GHz+8%
Base Clock	3.5 GHz	4.1 GHz+17%
L3 Cache	—	4 MB (total)
L2 Cache	2 MB+700%	256 kB (per core)
Process	28 nm	14 nm-50%
Architecture	Carrizo (2015−2018)	Comet Lake-R (2021)
PassMark	3,768	3,817+1%

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Memory & Platform

The Athlon X4 845 uses the FM2+ socket (PCIe 3.0), while the Pentium Gold G6405 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.