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Difference between revisions of "intel/core i7/i7-2840qm"
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(→‎Cache)
(→‎Memory controller)
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== Memory controller ==
 
== Memory controller ==
 +
{{memory controller
 +
|type=DDR3-1600
 +
|type 2=DDR3-1333
 +
|type 3=DDR3-1066
 +
|ecc=No
 +
|max mem=32 GiB
 +
|controllers=1
 +
|channels=2
 +
|max bandwidth=23.84 GiB/s
 +
|bandwidth schan=11.92 GiB/s
 +
|bandwidth dchan=23.84 GiB/s
 +
}}
  
 
== Expansions ==
 
== Expansions ==

Revision as of 21:42, 2 September 2017

Template:mpu

This specific model was only sold to a number of selected OEMs, featuring a 100 MHz speed bump over previous model.

Cache

Main article: Sandy Bridge § Cache

[Edit/Modify Cache Info]

hierarchy icon.svg
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.
L1$256 KiB
262,144 B
0.25 MiB
L1I$128 KiB
131,072 B
0.125 MiB
4x32 KiB8-way set associative 
L1D$128 KiB
131,072 B
0.125 MiB
4x32 KiB8-way set associativewrite-back
L2$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
  4x256 KiB8-way set associativewrite-back
L3$8 MiB
8,192 KiB
8,388,608 B
0.00781 GiB
  4x2 MiB16-way set associativewrite-back

Memory controller

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR3-1600, DDR3-1333, DDR3-1066
Supports ECCNo
Max Mem32 GiB
Controllers1
Channels2
Max Bandwidth23.84 GiB/s
24,412.16 MiB/s
25.598 GB/s
25,598.005 MB/s
0.0233 TiB/s
0.0256 TB/s
Bandwidth
Single 11.92 GiB/s
Double 23.84 GiB/s

Expansions

Graphics

Features

[Edit/Modify Supported Features]

Cog-icon-grey.svg
Supported x86 Extensions & Processor Features
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Facts about "Core i7-2840QM - Intel"
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l1$ size256 KiB (262,144 B, 0.25 MiB) +
l1d$ description8-way set associative +
l1d$ size128 KiB (131,072 B, 0.125 MiB) +
l1i$ description8-way set associative +
l1i$ size128 KiB (131,072 B, 0.125 MiB) +
l2$ description8-way set associative +
l2$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l3$ description16-way set associative +
l3$ size8 MiB (8,192 KiB, 8,388,608 B, 0.00781 GiB) +