Phenom II X4 925 vs A6-6400K

Primary details

Comparing A6-6400K and Phenom II X4 925 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2375	2060
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.12	4.81
Market segment	Desktop processor	Desktop processor
Series	AMD A-Series (Desktop)	no data
Architecture codename	Richland (2013−2014)	Deneb (2009−2011)
Release date	1 June 2013 (10 years ago)	May 2009 (15 years ago)
Launch price (MSRP)	no data	$160
Current price	$80	$25 (0.2x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Phenom II X4 925 has 3908% better value for money than A6-6400K.

Detailed specifications

A6-6400K and Phenom II X4 925 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 cores	2 (Dual-core)	4 (Quad-Core)
Threads	2	4
Base clock speed	3.9 GHz	no data
Boost clock speed	4.1 GHz	2.8 GHz
L1 cache	96 KB	128 KB (per core)
L2 cache	1024 KB	512 KB (per core)
L3 cache	0 KB	6 MB (shared)
Chip lithography	32 nm	45 nm
Die size	246 mm2	258 mm2
Maximum core temperature	70 °C	no data
Maximum case temperature (TCase)	70 °C	no data
Number of transistors	1,178 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on A6-6400K and Phenom II X4 925 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 configuration	1	1
Socket	FM2	AM3
Power consumption (TDP)	65 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A6-6400K and Phenom II X4 925. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0	no data
AES-NI	+	no data
FMA	FMA4	no data
AVX	+	no data
PowerTune	-	no data
TrueAudio	-	no data
PowerNow	+	no data
PowerGating	+	no data
Out-of-band client management	-	no data
VirusProtect	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by A6-6400K and Phenom II X4 925 are enumerated here.

AMD-V	+	no data
IOMMU 2.0	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6-6400K and Phenom II X4 925. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR3
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon HD 8470D	no data
Number of pipelines	192	no data
Enduro	+	no data
Switchable graphics	1	no data
UVD	+	no data
VCE	+	no data

Graphics interfaces

Available interfaces and connections of A6-6400K and Phenom II X4 925 integrated GPUs.

DisplayPort	+	no data
HDMI	+	no data

Graphics API support

APIs supported by A6-6400K and Phenom II X4 925 integrated GPUs, sometimes API versions are included.

DirectX

DirectX® 11

no data

Peripherals

Specifications and connection of peripherals supported by A6-6400K and Phenom II X4 925.

PCIe version

2.0

no data

Synthetic benchmark performance

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

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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.

Phenom II X4 925 outperforms A6-6400K by 52% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	0.97	1.47
Physical cores	2	4
Threads	2	4
Chip lithography	32 nm	45 nm
Power consumption (TDP)	65 Watt	95 Watt

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Should you still have questions on choice between A6-6400K and Phenom II X4 925, ask them in Comments section, and we shall answer.

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