A8-5600K vs Core i5-5257U

A8-5600K vs Core i5-5257U Performance Spectrum

A8-5600K

4 / 4

2,860

+0.8%

Ryzen Threadripper 3990X

Core i5-5257U

2 / 4

2,837

0.0%

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.

A8-5600K vs Core i5-5257U 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.

A8-5600K vs Core i5-5257U: Pros, Cons & Final Verdict

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

A8-5600K

2012

Why buy it

✅Better for gaming: +5.6% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 100W instead of 512W, a 412W reduction.
✅33.3% more PCIe lanes (16 vs 12) for storage and expansion-heavy builds.
✅Includes a boxed cooler (true), unlike Core i5-5257U.

Trade-offs

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

Core i5-5257U

2015

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than A8-5600K across 50 shared CPU benchmark tests.
❌Lower PassMark (2,837 vs 2,860).
❌412% higher power demand at 512W vs 100W.
❌No boxed cooler included, unlike A8-5600K.

Quick Answers

So, is A8-5600K better than Core i5-5257U?

Yes. A8-5600K is the better all-around CPU here. It gives you a 5.6% average FPS lead across 50 shared CPU game tests in our data and 0.8% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, A8-5600K is the better pick. According to our tests, it delivers 5.6% 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, A8-5600K is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 4 threads.

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

A8-5600K still makes the most sense overall. A8-5600K comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 5.6% average FPS lead across 50 shared CPU game tests in our data.

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

Core i5-5257U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2012). That makes it the safer long-term bet.

A8-5600K vs Core i5-5257U Technical Specifications

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

A8-5600K

The A8-5600K is manufactured by AMD. It was released in 2014-01-01. It is based on the Trinity (2012−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.6 GHz, with boost up to 3.9 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 100 Watt. Memory support: DDR3. Passmark benchmark score: 2,860 points. Launch price was $90.

Core i5-5257U

The Core i5-5257U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 4 threads. Base frequency is 2.7 GHz, with boost up to 3.1 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 28 Watt. Memory support: DDR3. Passmark benchmark score: 2,837 points. Launch price was $315.

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Processing Power

The A8-5600K packs 4 cores / 4 threads, while the Core i5-5257U offers 2 cores / 4 threads — the A8-5600K has 2 more cores. Boost clocks reach 3.9 GHz on the A8-5600K versus 3.1 GHz on the Core i5-5257U — a 22.9% clock advantage for the A8-5600K (base: 3.6 GHz vs 2.7 GHz). The A8-5600K uses the Trinity (2012−2013) architecture (32 nm), while the Core i5-5257U uses Broadwell-U (2015) (14 nm). In PassMark, the A8-5600K scores 2,860 against the Core i5-5257U's 2,837 — a 0.8% lead for the A8-5600K. L3 cache: 0 kB on the A8-5600K vs 3 MB (total) on the Core i5-5257U.

Feature	A8-5600K	Core i5-5257U
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	3.9 GHz+26%	3.1 GHz
Base Clock	3.6 GHz+33%	2.7 GHz
L3 Cache	0 kB	3 MB (total)
L2 Cache	1 MB (per core)	256K (per core)+25500%
Process	32 nm	14 nm-56%
Architecture	Trinity (2012−2013)	Broadwell-U (2015)
PassMark	2,860	2,837
Geekbench 6 Single	—	950
Geekbench 6 Multi	—	1,900

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Memory & Platform

The A8-5600K uses the FM2 socket (PCIe 2.0), while the Core i5-5257U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to 1866 memory speed. The A8-5600K supports up to 64 GB of RAM compared to 16 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (A8-5600K) vs 12 (Core i5-5257U) — the A8-5600K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FM2 (A8-5600K) and Broadwell-U (Core i5-5257U).

Feature	A8-5600K	Core i5-5257U
Socket	FM2	FCBGA1168
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	1866	LPDDR3 1866 MHz
Max RAM Capacity	64 GB+300%	16 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16+33%	12

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Advanced Features

Only the A8-5600K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support true virtualization. Both include integrated graphics — Radeon HD 7560D (A8-5600K) and Intel Iris Graphics 6100 (Core i5-5257U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-5257U targets Mobile. Direct competitor: A8-5600K rivals Core i3-3220.