Core i7-4790T vs Xeon E5-2640

Primary details

Comparing Xeon E5-2640 and Core i7-4790T processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1314	1311
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.96	1.44
Market segment	Server	Desktop processor
Series	no data	Intel Core i7 (Desktop)
Architecture codename	Sandy Bridge-EP (2012)	Haswell (2013−2015)
Release date	6 March 2012 (12 years ago)	1 May 2014 (10 years ago)
Launch price (MSRP)	$162	$303
Current price	$43 (0.3x MSRP)	$150 (0.5x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-4790T has 50% better value for money than Xeon E5-2640.

Detailed specifications

Xeon E5-2640 and Core i7-4790T 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	6 (Hexa-Core)	4 (Quad-Core)
Threads	12	8
Base clock speed	2.5 GHz	2.7 GHz
Boost clock speed	3 GHz	3.9 GHz
L1 cache	64 KB (per core)	256 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	15360 KB (shared)	8 MB
Chip lithography	32 nm	22 nm
Die size	435 mm2	177 mm2
Maximum core temperature	73 °C	71 °C
Number of transistors	2,270 million	1400 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-2640 and Core i7-4790T 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	2	1
Socket	FCLGA2011	FCLGA1150
Power consumption (TDP)	95 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2640 and Core i7-4790T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	no data	+
Turbo Boost Technology	1.0	2.0
Hyper-Threading Technology	+	+
TSX	no data	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	no data
SIPP	no data	+
Demand Based Switching	+	no data
FDI	no data	+
Status	Discontinued	Discontinued

Security technologies

Xeon E5-2640 and Core i7-4790T technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2640 and Core i7-4790T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2640 and Core i7-4790T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	384 GB	32 GB
Max memory channels	4	2
Maximum memory bandwidth	42.6 GB/s	25.6 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics 4600
Max video memory	no data	2 GB
Quick Sync Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.2 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Xeon E5-2640 and Core i7-4790T integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E5-2640 and Core i7-4790T 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 Xeon E5-2640 and Core i7-4790T 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 Xeon E5-2640 and Core i7-4790T.

PCIe version	3.0	Up to 3.0
PCI Express lanes	40	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.

Pros & cons summary

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Performance score	4.09	4.10
Recency	6 March 2012	1 May 2014
Physical cores	6	4
Threads	12	8
Cost	$162	$303
Chip lithography	32 nm	22 nm
Power consumption (TDP)	95 Watt	45 Watt

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Should you still have questions on choice between Xeon E5-2640 and Core i7-4790T, ask them in Comments section, and we shall answer.

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