i7-4785T vs i7-4940MX

Primary details

Comparing Core i7-4940MX and Core i7-4785T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1352	1530
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	7.13	9.41
Architecture codename	Haswell (2013−2015)	Haswell (2013−2015)
Release date	20 January 2014 (10 years ago)	2 June 2013 (11 years ago)
Launch price (MSRP)	$1,096	no data

Detailed specifications

Core i7-4940MX and Core i7-4785T 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	8
Base clock speed	3.1 GHz	2.2 GHz
Boost clock speed	4 GHz	3.2 GHz
Bus rate	5 GT/s	5 GT/s
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	8 MB (shared)	8 MB (shared)
Chip lithography	22 nm	22 nm
Die size	177 mm2	177 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	100 °C	66 °C
Number of transistors	1,400 million	1,400 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-4940MX and Core i7-4785T 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	FCLGA1150
Power consumption (TDP)	57 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4940MX and Core i7-4785T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
SIPP	-	+
FDI	+	+

Security technologies

Core i7-4940MX and Core i7-4785T technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4940MX and Core i7-4785T are enumerated here.

AMD-V	+	-
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4940MX and Core i7-4785T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3-1333/1600, DDR3L-1333/1600
Maximum memory size	32 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 4600	Intel HD Graphics 4600
Max video memory	1.7 GB	2 GB
Quick Sync Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.35 GHz	1.2 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i7-4940MX and Core i7-4785T integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-4940MX and Core i7-4785T integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096x2304@24Hz
Max resolution over eDP	no data	3840x2160@60Hz
Max resolution over DisplayPort	no data	3840x2160@60Hz
Max resolution over VGA	no data	1920x1200@60Hz

Graphics API support

APIs supported by Core i7-4940MX and Core i7-4785T integrated GPUs, sometimes API versions are included.

DirectX	no data	11.2/12
OpenGL	no data	4.3

Peripherals

Specifications and connection of peripherals supported by Core i7-4940MX and Core i7-4785T.

PCIe version	3	Up to 3.0
PCI Express lanes	16	16

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	4.46	3.61
Recency	20 January 2014	2 June 2013
Power consumption (TDP)	57 Watt	35 Watt

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Should you still have questions on choice between Core i7-4940MX and Core i7-4785T, ask them in Comments section, and we shall answer.

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