A6-6400B vs Core i5-3339Y

A6-6400B vs Core i5-3339Y Performance Spectrum

A6-6400B

2 / 2

1,573

0.0%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i5-3339Y

2 / 4

1,589

+1.0%

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.

A6-6400B vs Core i5-3339Y 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.

A6-6400B vs Core i5-3339Y: Pros, Cons & Final Verdict

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

A6-6400B

2013

Why buy it

✅Draws 65W instead of 512W, a 447W reduction.
✅Includes a boxed cooler (true), unlike Core i5-3339Y.

Trade-offs

❌Lower PassMark (1,573 vs 1,589).

Core i5-3339Y

2013

Why buy it

✅+1% higher PassMark.

Trade-offs

❌687.7% higher power demand at 512W vs 65W.
❌No boxed cooler included, unlike A6-6400B.

Quick Answers

So, is Core i5-3339Y better than A6-6400B?

It depends on what you want from the system. For gaming, A6-6400B is ahead with a 0.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-3339Y pulls ahead with 1% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core i5-3339Y is the stronger fit. You are getting 1% better PassMark, backed by 2 cores and 4 threads.

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

Core i5-3339Y still makes the most sense overall. Core i5-3339Y comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1% better PassMark.

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

Core i5-3339Y makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 2 cores / 4 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A6-6400B vs Core i5-3339Y Technical Specifications

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

A6-6400B

The A6-6400B 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. L2 cache: 1 MB (total). Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,573 points. Launch price was $70.

Core i5-3339Y

The Core i5-3339Y is manufactured by Intel. It was released in 8 January 2013 (12 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 4 threads. Base frequency is 1.5 GHz, with boost up to 2 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 13 Watt. Memory support: DDR3. Passmark benchmark score: 1,589 points. Launch price was $250.

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Processing Power

The A6-6400B packs 2 cores / 2 threads, matching the Core i5-3339Y's 2 cores. Boost clocks reach 4.1 GHz on the A6-6400B versus 2 GHz on the Core i5-3339Y — a 68.9% clock advantage for the A6-6400B (base: 3.9 GHz vs 1.5 GHz). The A6-6400B uses the Richland (2013−2014) architecture (32 nm), while the Core i5-3339Y uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the A6-6400B scores 1,573 against the Core i5-3339Y's 1,589 — a 1% lead for the Core i5-3339Y.

Feature	A6-6400B	Core i5-3339Y
Cores / Threads	2 / 2	2 / 4
Boost Clock	4.1 GHz+105%	2 GHz
Base Clock	3.9 GHz+160%	1.5 GHz
L3 Cache	—	3 MB (total)
L2 Cache	1 MB (total)	256K (per core)+25500%
Process	32 nm	22 nm-31%
Architecture	Richland (2013−2014)	Ivy Bridge (2012−2013)
PassMark	1,573	1,589+1%
Geekbench 6 Single	—	368
Geekbench 6 Multi	—	707

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Memory & Platform

The A6-6400B uses the FM2 socket (PCIe 3.0), while the Core i5-3339Y uses BGA1023 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1866 on the A6-6400B versus 1600 on the Core i5-3339Y — the A6-6400B supports 16.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 32 of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: FM2 (A6-6400B) and HM76,UM77,QM77,QS77 (Core i5-3339Y).

Feature	A6-6400B	Core i5-3339Y
Socket	FM2	BGA1023
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	1866+17%	1600
Max RAM Capacity	32	32
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Neither processor supports overclocking. Both support true virtualization. Both include integrated graphics — Radeon HD 8470D (A6-6400B) and Intel HD Graphics 4000 (Core i5-3339Y) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: A6-6400B rivals Pentium G3220; Core i5-3339Y rivals AMD A8-4555M.