Phenom II X4 840T vs A10-7700K

Primary details

Comparing A10-7700K and Phenom II X4 840T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1913	2148
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.25	2.28
Market segment	Desktop processor	Desktop processor
Series	AMD A-Series (Desktop)	no data
Power efficiency	2.01	1.48
Architecture codename	Godaveri (2014−2016)	Zosma (2010−2011)
Release date	14 January 2014 (10 years ago)	1 September 2010 (14 years ago)
Launch price (MSRP)	$152	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Phenom II X4 840T has 812% better value for money than A10-7700K.

Detailed specifications

A10-7700K and Phenom II X4 840T 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	4 (Quad-Core)	4 (Quad-Core)
Threads	4	4
Base clock speed	3.5 GHz	2.9 GHz
Boost clock speed	3.8 GHz	3.2 GHz
L1 cache	256 KB	128 KB (per core)
L2 cache	4096 KB	512 KB (per core)
L3 cache	0 KB	6 MB (shared)
Chip lithography	28 nm	45 nm
Die size	246 mm2	346 mm2
Maximum core temperature	72 °C	no data
Maximum case temperature (TCase)	74 °C	no data
Number of transistors	1,178 million	904 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on A10-7700K and Phenom II X4 840T 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)	95 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A10-7700K and Phenom II X4 840T. You'll probably need this information if you require some particular technology.

Instruction set extensions	SSE1-4a, AVX, AES, FMA4, VT	no data
AES-NI	+	-
FMA	+	-
AVX	+	-
FRTC	+	-
FreeSync	+	-
DualGraphics	+	-
TrueAudio	+	-
PowerNow	+	-
PowerGating	+	-
Out-of-band client management	+	-
VirusProtect	+	-
HSA	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by A10-7700K and Phenom II X4 840T are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A10-7700K and Phenom II X4 840T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-2133	DDR3
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R7 Graphics	no data
iGPU core count	6	no data
Number of pipelines	384	no data
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A10-7700K and Phenom II X4 840T integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A10-7700K and Phenom II X4 840T integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	+	-

Peripherals

Specifications and connection of peripherals supported by A10-7700K and Phenom II X4 840T.

PCIe version

3.0

2.0

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.

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Pros & cons summary

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Performance score	2.02	1.49
Recency	14 January 2014	1 September 2010
Chip lithography	28 nm	45 nm

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Should you still have questions on choice between A10-7700K and Phenom II X4 840T, ask them in Comments section, and we shall answer.

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