i7-640M vs i7-6600U

VS

Aggregate performance score

Core i7-6600U
2015
2 cores / 4 threads, 15 Watt
2.16
+64.9%
Core i7-640M
2010
2 cores / 4 threads, 35 Watt
1.31

Core i7-6600U outperforms Core i7-640M by an impressive 65% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6600U and Core i7-640M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking18622277
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Core i7
Power efficiency13.633.54
Architecture codenameSkylake (2015−2016)Arrandale (2010−2011)
Release date1 September 2015 (9 years ago)13 September 2010 (14 years ago)
Launch price (MSRP)$393$346

Detailed specifications

Core i7-6600U and Core i7-640M 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 cores2 (Dual-core)2 (Dual-core)
Threads44
Base clock speed2.6 GHz2.8 GHz
Boost clock speed3.4 GHz3.46 GHz
Bus typeOPIDMI 1.0
Bus rate4 GT/s1 × 2.5 GT/s
Multiplier2621
L1 cache128 KB128 KB
L2 cache512 KB512 KB
L3 cache4 MB4 MB (shared)
Chip lithography14 nm32 nm
Die size98.57 mm281+114 mm2
Maximum core temperature100 °C105 °C
Number of transistors1750 Million382 Million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i7-6600U and Core i7-640M 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCBGA1356BGA1288, PGA988
Power consumption (TDP)15 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6600U and Core i7-640M. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2
AES-NI++
FMA-+
AVX+-
vPro++
Enhanced SpeedStep (EIST)++
My WiFi+no data
Turbo Boost Technology2.0+
Hyper-Threading Technology++
TSX+-
Idle States++
Thermal Monitoring++
Flex Memory Access++
SIPP+-
Smart Response+no data
PAEno data36 Bit
FDIno data+
Fast Memory Accessno data+

Security technologies

Core i7-6600U and Core i7-640M technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key+no data
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6600U and Core i7-640M are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6600U and Core i7-640M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3, DDR4DDR3
Maximum memory size32 GB8 GB
Max memory channels22
Maximum memory bandwidth34.134 GB/s17.051 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 520Intel HD Graphics for Previous Generation Intel Processors
Max video memory32 GBno data
Quick Sync Video+-
Clear Video++
Clear Video HD++
Graphics max frequency1.05 GHz766 MHz
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-6600U and Core i7-640M integrated GPUs.

Number of displays supported32
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i7-6600U and Core i7-640M integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Core i7-6600U and Core i7-640M integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i7-6600U and Core i7-640M.

PCIe version3.02.0
PCI Express lanes1216

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


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.

i7-6600U 2.16
+64.9%
i7-640M 1.31

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-6600U 3425
+65.2%
i7-640M 2073

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-6600U 5298
+42.9%
i7-640M 3708

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-6600U 11320
+43.2%
i7-640M 7906

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-6600U 4334
+31%
i7-640M 3307

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-6600U 14.73
+19.6%
i7-640M 17.62

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-6600U 4
+42.6%
i7-640M 3

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-6600U 1.61
+51.9%
i7-640M 1.06

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-6600U 1.9
+46.2%
i7-640M 1.3

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-6600U 2450
+38.9%
i7-640M 1763

Gaming performance

Pros & cons summary


Performance score 2.16 1.31
Integrated graphics card 2.16 0.77
Recency 1 September 2015 13 September 2010
Chip lithography 14 nm 32 nm
Power consumption (TDP) 15 Watt 35 Watt

i7-6600U has a 64.9% higher aggregate performance score, 180.5% faster integrated GPU, an age advantage of 4 years, a 128.6% more advanced lithography process, and 133.3% lower power consumption.

The Core i7-6600U is our recommended choice as it beats the Core i7-640M in performance tests.


Should you still have questions on choice between Core i7-6600U and Core i7-640M, ask them in Comments section, and we shall answer.

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Intel Core i7-6600U
Core i7-6600U
Intel Core i7-640M
Core i7-640M

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Community ratings

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