Intel Core i7 2649M 

Released February, 2011
  • 2.3 GHz
  • Dual core

The T300 Chi was specified as a 12.5-inch fanless tablet in a 7.3mm thickness design, with LTE support and a 2560x1600 display.
by Ian-Cutress (Sep, 2014)
The design of each transistor fin is now more denser and compared to the 22nm node, 14nm is much smaller and efficient.
by hassan-mujtaba (Sep, 2014)

Features Key features of the Intel Core i7 2649M

clock speed

Core i7 2649M
2.3 GHz
Core i7 640M
2.8 GHz
Core i7 2620M
2.7 GHz

turbo clock speed

Core i7 2649M
3.2 GHz
Core i7 640M
3.46 GHz
Core i7 2620M
3.4 GHz

L2 cache

Core i7 2649M
1 MB

gpu clock speed

Core i7 2649M
500 MHz
Core i7 2620M
650 MHz
Core i7 640M
500 MHz

overclocked clock speed (air)

Core i7 2649M
2.3 GHz
Core i7 640M
3.42 GHz
Core i7 2620M
3.22 GHz

overclocked clock speed (water)

Core i7 2649M
2.3 GHz
Core i7 640M
2.8 GHz
Core i7 2620M
2.7 GHz

In The News From around the web

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.

Intel Announces Core M Processor Lineup Using Broadwell-Y

by Ryan Shrout |
The Core M 5Y70 is the highest performance part with a base clock speed of 1.10 GHz that can scale up to 2.6 GHz with one or both cores active.
At least one partner has already announced a Core M product: the Lenovo ThinkPad Helix.
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.
The delays and fab cancellations that followed took a great deal of wind out of its sails, leaving us to wonder if the 14nm delays would push back the entire product stack.
This wouldn’t be the first time that Intel unleashed a vastly improved product that failed to grab much market attention.

Specifications Full list of technical specs


Clock speed 2.3 GHz
Turbo clock speed 3.2 GHz
Cores Dual core
Socket type BGA 1023
Is unlocked No


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. AVX
Supports dynamic frequency scaling Yes

power consumption

Annual home energy cost 6.02 $/year
Typical power consumption 20.31W


Architecture DMI
Transfer rate 5,000 MT/s


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
Max CPUs 1
Clock multiplier 23
Operating temperature Unknown - 100°C


Overclocked clock speed 2.3 GHz
Overclocked clock speed (Water) 2.3 GHz
Overclocked clock speed (Air) 2.3 GHz

integrated graphics

Label Intel® HD Graphics 3000
Number of displays supported 2
GPU clock speed 500 MHz
Turbo clock speed 1,100 MHz

memory controller

Memory controller Built-in
Memory type
  1. DDR3-1333
  2. DDR3-1066
  3. DDR3
Channels Dual Channel
Supports ECC No
Maximum bandwidth 21,333.32 MB/s
Maximum memory size 8,202.24 MB
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