Athlon X4 840 vs Core i5-6267U

Athlon X4 840 vs Core i5-6267U Performance Spectrum

Athlon X4 840

4 / 4

3,331

0.0%

Ryzen Threadripper 3990X

Core i5-6267U

2 / 4

3,360

+0.9%

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 840 vs Core i5-6267U 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 840 vs Core i5-6267U: 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 840

2014

Why buy it

✅Better for gaming: +8.2% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 65W instead of 512W, a 447W reduction.
✅33.3% more PCIe lanes (16 vs 12) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (3,331 vs 3,360).
❌Launch MSRP is still $102 MSRP, while Core i5-6267U mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Core i5-6267U can still boot and troubleshoot without a discrete GPU.

Core i5-6267U

2015

Why buy it

✅+0.9% higher PassMark.
✅Integrated graphics onboard with Iris Graphics 550, while Athlon X4 840 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Athlon X4 840 across 50 shared CPU benchmark tests.
❌687.7% higher power demand at 512W vs 65W.

Quick Answers

So, is Athlon X4 840 better than Core i5-6267U?

It depends on what you want from the system. For gaming, Athlon X4 840 is ahead with a 8.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-6267U pulls ahead with 0.9% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core i5-6267U is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 4 threads.

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

Athlon X4 840 is the better buy right now. Athlon X4 840 comes in at an unclear MSRP at $102 MSRP versus unclear MSRP, and it still gives you a 8.2% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i5-6267U is still stronger for heavier multi-core work with 0.9% better PassMark. It is also 100.0% better value on MSRP (32.7 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i5-6267U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2014) 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 840 vs Core i5-6267U Technical Specifications

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

Athlon X4 840

The Athlon X4 840 is manufactured by AMD. It was released in 2009-01-01. It is based on the Kaveri (2014−2015) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.8 GHz. L2 cache: 4 MB. Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 watt. Memory support: DDR3. Passmark benchmark score: 3,331 points. Launch price was $149.

Core i5-6267U

The Core i5-6267U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 2.9 GHz, with boost up to 3.3 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 28 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 3,360 points. Launch price was $304.

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Processing Power

The Athlon X4 840 packs 4 cores / 4 threads, while the Core i5-6267U offers 2 cores / 4 threads — the Athlon X4 840 has 2 more cores. Boost clocks reach 3.8 GHz on the Athlon X4 840 versus 3.3 GHz on the Core i5-6267U — a 14.1% clock advantage for the Athlon X4 840 (base: 3.1 GHz vs 2.9 GHz). The Athlon X4 840 uses the Kaveri (2014−2015) architecture (28 nm), while the Core i5-6267U uses Skylake (2015−2016) (14 nm). In PassMark, the Athlon X4 840 scores 3,331 against the Core i5-6267U's 3,360 — a 0.9% lead for the Core i5-6267U.

Feature	Athlon X4 840	Core i5-6267U
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	3.8 GHz+15%	3.3 GHz
Base Clock	3.1 GHz+7%	2.9 GHz
L3 Cache	—	4 MB
L2 Cache	4 MB+700%	512 kB
Process	28 nm	14 nm-50%
Architecture	Kaveri (2014−2015)	Skylake (2015−2016)
PassMark	3,331	3,360

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Memory & Platform

The Athlon X4 840 uses the FM2+ socket (PCIe 3.0), while the Core i5-6267U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR3-2133 memory speed. The Athlon X4 840 supports up to 64 GB of RAM compared to 32 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Athlon X4 840) vs 12 (Core i5-6267U) — the Athlon X4 840 offers 4 more lanes for additional GPUs or NVMe drives.

Feature	Athlon X4 840	Core i5-6267U
Socket	FM2+	BGA1356
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR3-2133	DDR4-2133
Max RAM Capacity	64 GB+100%	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16+33%	12

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Advanced Features

Virtualization: not specified (Athlon X4 840) / VT-x, VT-d (Core i5-6267U). The Core i5-6267U includes integrated graphics (Iris Graphics 550), while the Athlon X4 840 requires a dedicated GPU. Primary use case: Core i5-6267U targets Mobile.