Intel Core i7 640M 

Released September, 2010
  • 2.8 GHz
  • Dual core
7.3 Out of 10

Moving to a 14nm process technology should give the GPU more thermal headroom and result in higher maximum clock speeds.
by Ryan-Shrout (Aug, 2014)
So some of the key aspects of the Broadwell microarchitecture would be to be suitable for fanless devices, deliver on core performance improvements and feature enhanced graphics, media, display capabilities.
by hassan-mujtaba (Sep, 2014)

CPUBoss Review Our evaluation of the Intel Core i7 640M among laptop CPUs (over 15W)

Performance

Benchmark performance using all cores

Core i7 640M
6.2
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Core i7 640M
7.2
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Core i7 640M
n.d.
Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Core i7 640M
n.d.
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Core i7 640M
5.9
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Core i7 640M
8.0
Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

7.3

CPUBoss Score

Combination of all six facets

Core i7 640M
7.3

Benchmarks Real world tests of the Intel Core i7 640M

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 640M
4,385
Core i5 560M
4,086
Core i5 580M
4,170

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i7 640M
2,187
Core i5 560M
1,961
Core i5 580M
2,093

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 640M
1,570,000 MB/s
Core i5 560M
1,410,000 MB/s
Core i5 580M
1,470,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 640M
4,158
Core i5 560M
3,916
Core i5 580M
3,974

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 640M
4,694
Core i5 560M
4,456
Core i5 580M
4,612

GeekBench

Core i7 640M
6,359
Core i5 560M
6,037
Core i5 580M
6,091

PassMark Data courtesy Passmark

Core i7 640M
2,871
Core i5 560M
2,662
Core i5 580M
2,738

PassMark (Single Core)

Core i7 640M
1,298
Core i5 560M
1,217
Core i5 580M
1,276

In The News From around the web

3
Nov

More Intel Core M Coming Q4

by Ian Cutress |
www.anandtech.com
All new CPUs are slated for a Q4 launch, which would mean that they might become available for end users in products on the shelf sometime in Q1 2015.
These initial CPUs should be properly available to the public in Q4 in devices such as the Lenovo Yoga 3 Pro using the Core M-5Y70.
One of the main graphs Intel was pushing in their briefing was this one, indicating what power is required for a fanless tablet.
With the 12.5-inch size and 7.3mm width, it sounds like the T300 Chi will be modifying the Core M CPU to be around 4W in order to keep the 41C skin temperature as a maximum.
The majority of the die is dedicated to the graphics core while there are two CPU cores and right below is a shared 4 MB L3 cache which is shared across the graphics and processor cores.
Since Core M is the first 14nm device, it will meet the demands of next iteration of mobility devices boasting better performance and efficiency.
12
Aug

Short Bytes: Intel's Core M and Broadwell-Y SoC

by Jarred Walton |
www.anandtech.com
Where previous Intel processors targeted laptops and desktops as the primary use case and then refined and adjusted the designs to get into lower power envelopes, with Broadwell Intel is putting the Y-series requirements center stage.
Shrinking the process technology from 22nm to 14nm can mean a lot of things, but the primary benefit this time appears to be smaller chip sizes and lower power requirements.

Specifications Full list of technical specs

summary

Clock speed 2.8 GHz
Turbo clock speed 3.46 GHz
Cores Dual core
Socket type
  1. BGA 1288
  2. rPGA 988A
Is unlocked No

features

Has a NX bit Yes
Supports trusted computing Yes
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. AES
  3. SSE
  4. SSE2
  5. SSE4.1
  6. SSE3
  7. Supplemental SSE3
  8. SSE4.2
  9. SSE4
Supports dynamic frequency scaling Yes

power consumption

TDP 35W
Annual home energy cost 8.43 $/year
Performance per watt 18.51 pt/W
Typical power consumption 28.44W

bus

Architecture DMI
Transfer rate 2,500 MT/s

details

Architecture x86-64
Threads 4 threads
L2 cache 1 MB
L2 cache per core 0.5 MB/core
L3 cache 4 MB
L3 cache per core 2 MB/core
Manufacture process 32 nm
Transistor count 382,000,000
Max CPUs 1
Clock multiplier 21

overclocking

Overclocked clock speed 3.42 GHz
Overclocked clock speed (Water) 2.8 GHz
Overclocked clock speed (Air) 3.42 GHz

integrated graphics

GPU GPU
Label Intel® HD Graphics
Number of displays supported 2
GPU clock speed 500 MHz
Turbo clock speed 766 MHz

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1066
  2. DDR3-800
  3. DDR3
Channels Dual Channel
Supports ECC No
Maximum bandwidth 17,066.66 MB/s
Maximum memory size 8,192 MB
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