A6-7400K vs Athlon II X4 640

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Aggregate performance score

Athlon II X4 640
2010
4 cores / 4 threads, 95 Watt
1.47
+37.4%

Athlon II X4 640 outperforms A6-7400K by a substantial 37% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X4 640 and A6-7400K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking21922435
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.92no data
Market segmentDesktop processorDesktop processor
Power efficiency1.411.50
Architecture codenamePropus (2009−2011)Kaveri (2014−2015)
Release date11 May 2010 (14 years ago)31 July 2014 (10 years ago)
Launch price (MSRP)$80no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X4 640 and A6-7400K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)2 (Dual-core)
Threads42
Base clock speed3 GHz3.5 GHz
Boost clock speed3 GHz3.9 GHz
L1 cache128 KB (per core)128 KB
L2 cache512 KB (per core)1024 KB
L3 cache0 KBno data
Chip lithography45 nm28 nm
Die size169 mm2245 mm2
Maximum core temperatureno data70 °C
Maximum case temperature (TCase)no data72 °C
Number of transistors300 million2,411 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier-+

Compatibility

Information on Athlon II X4 640 and A6-7400K compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketAM3FM2+
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X4 640 and A6-7400K. You'll probably need this information if you require some particular technology.

AES-NI-+
FMA-+
AVX-+
FRTC-+
FreeSync-+
TrueAudio-+
PowerNow-+
PowerGating-+
Out-of-band client management-+
VirusProtect-+
HSA-+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 640 and A6-7400K are enumerated here.

AMD-V-+
IOMMU 2.0-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 640 and A6-7400K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3-1866
Max memory channelsno data2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon R5 Graphics
iGPU core countno data4
Number of pipelinesno data256
Enduro-+
Switchable graphics-+
UVD-+
VCE-+

Graphics interfaces

Available interfaces and connections of Athlon II X4 640 and A6-7400K integrated GPUs.

DisplayPort-+
HDMI-+

Graphics API support

APIs supported by Athlon II X4 640 and A6-7400K integrated GPUs, sometimes API versions are included.

DirectXno dataDirectX® 12
Vulkan-+

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 640 and A6-7400K.

PCIe version2.03.0
PCI Express lanesno data16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Athlon II X4 640 1.47
+37.4%
A6-7400K 1.07

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Athlon II X4 640 2245
+37.6%
A6-7400K 1631

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Athlon II X4 640 313
A6-7400K 415
+32.6%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Athlon II X4 640 951
+62.6%
A6-7400K 585

Gaming performance

Pros & cons summary


Performance score 1.47 1.07
Recency 11 May 2010 31 July 2014
Physical cores 4 2
Threads 4 2
Chip lithography 45 nm 28 nm
Power consumption (TDP) 95 Watt 65 Watt

Athlon II X4 640 has a 37.4% higher aggregate performance score, and 100% more physical cores and 100% more threads.

A6-7400K, on the other hand, has an age advantage of 4 years, a 60.7% more advanced lithography process, and 46.2% lower power consumption.

The Athlon II X4 640 is our recommended choice as it beats the A6-7400K in performance tests.


Should you still have questions on choice between Athlon II X4 640 and A6-7400K, ask them in Comments section, and we shall answer.

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AMD Athlon II X4 640
Athlon II X4 640
AMD A6-7400K
A6-7400K

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Community ratings

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Questions & comments

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