Core i7-640UM vs Xeon E3-1275 v3

Primary details

Comparing Xeon E3-1275 v3 and Core i7-640UM processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1221	2545
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.69	no data
Market segment	Server	Laptop
Series	no data	Intel Core i7
Architecture codename	Haswell-WS (2013)	Arrandale (2010−2011)
Release date	2 June 2013 (11 years ago)	4 January 2010 (14 years ago)
Launch price (MSRP)	$531	$305
Current price	$325 (0.6x MSRP)	$1359 (4.5x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E3-1275 v3 and Core i7-640UM 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)	2 (Dual-core)
Threads	8	4
Base clock speed	3.5 GHz	1.2 GHz
Boost clock speed	3.9 GHz	2.27 GHz
Bus support	no data	2500 MHz
L1 cache	64 KB (per core)	128 KB
L2 cache	256 KB (per core)	512 KB
L3 cache	8192 KB (shared)	4 MB
Chip lithography	22 nm	32 nm
Die size	160 mm2	81+114 mm2
Maximum core temperature	no data	105 °C
Number of transistors	1,400 million	382+177 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E3-1275 v3 and Core i7-640UM 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	FCLGA1150	BGA1288
Power consumption (TDP)	84 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1275 v3 and Core i7-640UM. 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
AES-NI	+	+
FMA	no data	+
AVX	+	no data
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	+
Hyper-Threading Technology	+	+
TSX	+	no data
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	+	no data
PAE	no data	36 Bit
FDI	+	+
Fast Memory Access	+	+
Status	Discontinued	Discontinued

Security technologies

Xeon E3-1275 v3 and Core i7-640UM technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1275 v3 and Core i7-640UM are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1275 v3 and Core i7-640UM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3-800
Maximum memory size	32 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	12.8 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD P4600	Intel® HD Graphics for Previous Generation Intel® Processors
Quick Sync Video	+	no data
Clear Video	no data	+
Clear Video HD	+	+
Graphics max frequency	1.25 GHz	500 MHz
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Xeon E3-1275 v3 and Core i7-640UM integrated GPUs.

Number of displays supported

3

2

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1275 v3 and Core i7-640UM.

PCIe version	3.0	2.0
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.

Xeon E3-1275 v3 outperforms Core i7-640UM by 513% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	4.66	0.76
Recency	2 June 2013	4 January 2010
Physical cores	4	2
Threads	8	4
Cost	$531	$305
Chip lithography	22 nm	32 nm
Power consumption (TDP)	84 Watt	18 Watt

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Should you still have questions on choice between Xeon E3-1275 v3 and Core i7-640UM, ask them in Comments section, and we shall answer.

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