A10-7870K vs i7-4940MX

Primary details

Comparing Core i7-4940MX and A10-7870K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1368	1852
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.49
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	7.14	2.18
Architecture codename	Haswell (2013−2015)	Godaveri (2014−2016)
Release date	20 January 2014 (10 years ago)	28 May 2015 (9 years ago)
Launch price (MSRP)	$1,096	$120

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-4940MX and A10-7870K 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	8	4
Base clock speed	3.1 GHz	3.9 GHz
Boost clock speed	4 GHz	4.1 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	256 KB
L2 cache	256K (per core)	4096 KB
L3 cache	8 MB (shared)	0 KB
Chip lithography	22 nm	28 nm
Die size	177 mm2	246 mm2
Maximum core temperature	100 °C	72 °C
Maximum case temperature (TCase)	100 °C	74 °C
Number of transistors	1,400 million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	+

Compatibility

Information on Core i7-4940MX and A10-7870K 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	FCPGA946	FM2+
Power consumption (TDP)	57 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4940MX and A10-7870K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
FMA	-	FMA4
AVX	+	AVX
FRTC	-	+
FreeSync	-	+
PowerTune	-	+
DualGraphics	-	+
TrueAudio	-	+
PowerNow	-	+
PowerGating	-	+
Out-of-band client management	-	+
VirusProtect	-	+
HSA	-	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
FDI	+	no data

Security technologies

Core i7-4940MX and A10-7870K technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
Identity Protection	+	-
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4940MX and A10-7870K are enumerated here.

AMD-V	+	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data
IOMMU 2.0	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4940MX and A10-7870K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-2133
Maximum memory size	32 GB	no data
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 4600	AMD Radeon R7 Graphics
iGPU core count	no data	8
จำนวนพาธไลน์	no data	512
Max video memory	1.7 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
VCE	-	+
Graphics max frequency	1.35 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-4940MX and A10-7870K integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	+
HDMI	+	+
VGA	+	no data

Graphics API support

APIs supported by Core i7-4940MX and A10-7870K integrated GPUs, sometimes API versions are included.

DirectX	no data	DirectX® 12
Vulkan	-	+

Peripherals

Specifications and connection of peripherals supported by Core i7-4940MX and A10-7870K.

PCIe version	3	3.0
PCI Express lanes	16	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.

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Pros & cons summary

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Performance score	4.30	2.19
Recency	20 January 2014	28 May 2015
Threads	8	4
Chip lithography	22 nm	28 nm
Power consumption (TDP)	57 Watt	95 Watt

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Should you still have questions on choice between Core i7-4940MX and A10-7870K, ask them in Comments section, and we shall answer.

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