i7-990X Extreme Edition vs i7-4940MX

Primary details

Comparing Core i7-4940MX and Core i7-990X Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1355	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	Intel Core i7EE
Power efficiency	7.14	no data
Architecture codename	Haswell (2013−2015)	Westmere (2010−2011)
Release date	20 January 2014 (10 years ago)	13 February 2011 (13 years ago)
Launch price (MSRP)	$1,096	no data

Detailed specifications

Core i7-4940MX and Core i7-990X Extreme Edition 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)	6 (Hexa-Core)
Threads	8	12
Base clock speed	3.1 GHz	no data
Boost clock speed	4 GHz	3.46 GHz
Bus type	no data	QPI
Bus rate	5 GT/s	6.4 GT/s
Multiplier	no data	26
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	1.5 MB
L3 cache	8 MB (shared)	12 MB
Chip lithography	22 nm	32 nm
Die size	177 mm2	239 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	100 °C	no data
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Core i7-4940MX and Core i7-990X Extreme Edition 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 (Uniprocessor)
Socket	FCPGA946	no data
Power consumption (TDP)	57 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4940MX and Core i7-990X Extreme Edition. 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	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
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 Core i7-990X Extreme Edition 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 Core i7-990X Extreme Edition are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4940MX and Core i7-990X Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	32 GB	24 GB
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 4600	no data
Max video memory	1.7 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.35 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i7-4940MX and Core i7-990X Extreme Edition integrated GPUs.

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

Peripherals

Specifications and connection of peripherals supported by Core i7-4940MX and Core i7-990X Extreme Edition.

PCIe version	3	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	20 January 2014	13 February 2011
Physical cores	4	6
Threads	8	12
Chip lithography	22 nm	32 nm
Power consumption (TDP)	57 Watt	130 Watt

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