A6-5400K vs Athlon X2 450

A6-5400K vs Athlon X2 450 Performance Spectrum

A6-5400K

2 / 2

1,279

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Athlon X2 450

2 / 2

1,295

+1.3%

Ryzen Threadripper PRO 3955WX

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.

A6-5400K vs Athlon X2 450 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.

A6-5400K vs Athlon X2 450: Pros, Cons & Final Verdict

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

A6-5400K

2012

Why buy it

✅Integrated graphics onboard with Radeon HD 7540D, while Athlon X2 450 needs a discrete GPU.

Trade-offs

❌Lower Geekbench single-core performance for gaming (390 vs 450).
❌Lower PassMark (1,279 vs 1,295).

Athlon X2 450

2014

Why buy it

✅+15.4% higher Geekbench single-core performance for gaming and desktop responsiveness.

Trade-offs

❌Launch MSRP is still $60 MSRP, while A6-5400K mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while A6-5400K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Athlon X2 450 better than A6-5400K?

Yes. Athlon X2 450 is the better all-around CPU here. It gives you a 0.1% average FPS lead across 49 shared CPU game tests in our data, 1.3% 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, Athlon X2 450 is the better pick. According to our tests, it delivers 0.1% more average FPS across 49 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Athlon X2 450 is the stronger fit. You are getting 1.3% better PassMark, backed by 2 cores and 2 threads.

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

Athlon X2 450 is the better buy right now. Athlon X2 450 comes in at an unclear MSRP at $60 MSRP versus unclear MSRP, and it still gives you a 0.1% average FPS lead across 49 shared CPU game tests in our data. It is also 100.0% better value on MSRP (21.6 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Athlon X2 450 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2012) 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.

A6-5400K vs Athlon X2 450 Technical Specifications

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

A6-5400K

The A6-5400K is manufactured by AMD. It was released in 2014-01-01. It is based on the Trinity (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 3.6 GHz, with boost up to 3.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,279 points. Launch price was $70.

Athlon X2 450

The Athlon X2 450 is manufactured by AMD. It was released in 2009-01-01. It is based on the Kaveri (2014−2015) architecture. It features 2 cores and 2 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L2 cache: 1 MB (total). Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,295 points. Launch price was $149.

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Processing Power

Both the A6-5400K and Athlon X2 450 share an identical 2-core/2-thread configuration. Boost clocks reach 3.8 GHz on the A6-5400K versus 3.9 GHz on the Athlon X2 450 — a 2.6% clock advantage for the Athlon X2 450 (base: 3.6 GHz vs 3.5 GHz). The A6-5400K uses the Trinity (2012−2013) architecture (32 nm), while the Athlon X2 450 uses Kaveri (2014−2015) (28 nm). In PassMark, the A6-5400K scores 1,279 against the Athlon X2 450's 1,295 — a 1.2% lead for the Athlon X2 450. Geekbench 6 single-core — the metric most relevant to gaming — records 390 vs 450, a 14.3% lead for the Athlon X2 450 that directly translates to higher frame rates.

Feature	A6-5400K	Athlon X2 450
Cores / Threads	2 / 2	2 / 2
Boost Clock	3.8 GHz	3.9 GHz+3%
Base Clock	3.6 GHz+3%	3.5 GHz
L3 Cache	0 kB	—
L2 Cache	1 MB (per core)	1 MB (total)
Process	32 nm	28 nm-13%
Architecture	Trinity (2012−2013)	Kaveri (2014−2015)
PassMark	1,279	1,295+1%
Cinebench R23 Multi	—	1,500
Geekbench 6 Single	390	450+15%
Geekbench 6 Multi	—	800

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Memory & Platform

The A6-5400K uses the FM2 socket (PCIe 2.0), while the Athlon X2 450 uses FM2+ (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR3-1866 memory speed. The A6-5400K 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. Both provide 16 PCIe lanes. Chipset compatibility: A55,A75,A85X,A88X (A6-5400K) and A88X,A78,A68H (Athlon X2 450).

Feature	A6-5400K	Athlon X2 450
Socket	FM2	FM2+
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1866	DDR3-1866
Max RAM Capacity	32 GB+100%	16 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Only the A6-5400K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AMD-V virtualization. The A6-5400K includes integrated graphics (Radeon HD 7540D), while the Athlon X2 450 requires a dedicated GPU. Primary use case: A6-5400K targets Budget Desktop, Athlon X2 450 targets Basic Desktop. Direct competitor: A6-5400K rivals Pentium G2120; Athlon X2 450 rivals Core i3-3220.