A6-6400K vs Athlon 64 X2 5200+

A6-6400K vs Athlon 64 X2 5200+ Performance Spectrum

A6-6400K

2 / 2

1,511

+0.4%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Athlon 64 X2 5200+

2 / 2

1,505

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

A6-6400K vs Athlon 64 X2 5200+ 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.

A6-6400K vs Athlon 64 X2 5200+: Pros, Cons & Final Verdict

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

A6-6400K

2013

Why buy it

✅Draws 65W instead of 89W, a 24W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon HD 8470D, while Athlon 64 X2 5200+ needs a discrete GPU.
✅Includes a boxed cooler (true), unlike Athlon 64 X2 5200+.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Athlon 64 X2 5200+

2006

Why buy it

Trade-offs

❌Lower PassMark (1,505 vs 1,511).
❌Launch MSRP is still $420 MSRP, while A6-6400K mostly shows up through inconsistent older-market listings.
❌36.9% higher power demand at 89W vs 65W.
❌No integrated graphics, while A6-6400K can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike A6-6400K.

Quick Answers

So, is A6-6400K better than Athlon 64 X2 5200+?

Yes. A6-6400K is the better all-around CPU here. It gives you a 0.7% average FPS lead across 50 shared CPU game tests in our data, 0.4% 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, A6-6400K is the better pick. According to our tests, it delivers 0.7% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, A6-6400K is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 2 threads.

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

A6-6400K is still the much better call for a fresh build. A6-6400K comes in at an unclear MSRP at unclear MSRP versus $420 MSRP, and it still gives you a 0.7% average FPS lead across 50 shared CPU game tests in our data. Athlon 64 X2 5200+ only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2006 platform. Even with 100.0% better value on paper (3.6 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM2.

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

A6-6400K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2006) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A6-6400K vs Athlon 64 X2 5200+ Technical Specifications

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

A6-6400K

The A6-6400K is manufactured by AMD. It was released in 2014-01-01. It is based on the Richland (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 3.9 GHz, with boost up to 4.1 GHz. L3 cache: 0 kB. L2 cache: 1024 kB. Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,511 points. Launch price was $70.

Athlon 64 X2 5200+

The Athlon 64 X2 5200+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Windsor (2006−2007) architecture. It features 2 cores and 2 threads. Max frequency: 2.7 GHz. L3 cache: 0 kB. L2 cache: 512K. Built on 90 nm process technology. Socket: AM2. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 1,505 points. Launch price was $149.

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Processing Power

Both the A6-6400K and Athlon 64 X2 5200+ share an identical 2-core/2-thread configuration. Boost clocks reach 4.1 GHz on the A6-6400K versus 2.7 GHz on the Athlon 64 X2 5200+ — a 41.2% clock advantage for the A6-6400K. The A6-6400K uses the Richland (2013−2014) architecture (32 nm), while the Athlon 64 X2 5200+ uses Windsor (2006−2007) (90 nm). In PassMark, the A6-6400K scores 1,511 against the Athlon 64 X2 5200+'s 1,505 — a 0.4% lead for the A6-6400K. Both processors carry 0 kB of L3 cache.

Feature	A6-6400K	Athlon 64 X2 5200+
Cores / Threads	2 / 2	2 / 2
Boost Clock	4.1 GHz+52%	2.7 GHz
Base Clock	3.9 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	1024 kB+100%	512K
Process	32 nm-64%	90 nm
Architecture	Richland (2013−2014)	Windsor (2006−2007)
PassMark	1,511	1,505

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Memory & Platform

The A6-6400K uses the FM2 socket (PCIe 3.0), while the Athlon 64 X2 5200+ uses AM2 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 1866 on the A6-6400K versus DDR2-800 on the Athlon 64 X2 5200+ — the A6-6400K supports 133.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A6-6400K supports up to 32 GB of RAM compared to 16 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (A6-6400K) vs 0 (Athlon 64 X2 5200+) — the A6-6400K offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FM2 (A6-6400K) and AMD AM2 (Athlon 64 X2 5200+).

Feature	A6-6400K	Athlon 64 X2 5200+
Socket	FM2	AM2
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	1866+133%	DDR2-800
Max RAM Capacity	32 GB+100%	16 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

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Advanced Features

Virtualization: true (A6-6400K) / not specified (Athlon 64 X2 5200+). The A6-6400K includes integrated graphics (Radeon HD 8470D), while the Athlon 64 X2 5200+ requires a dedicated GPU. Direct competitor: A6-6400K rivals Pentium G3258.