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Difference between revisions of "intel/core i7/i7-2640m"
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(→‎Cache)
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== Cache ==
 
== Cache ==
 +
{{main|intel/microarchitectures/sandy_bridge#Memory_Hierarchy|l1=Sandy Bridge § Cache}}
 +
{{cache size
 +
|l1 cache=128 KiB
 +
|l1i cache=64 KiB
 +
|l1i break=2x32 KiB
 +
|l1i desc=8-way set associative
 +
|l1d cache=64 KiB
 +
|l1d break=2x32 KiB
 +
|l1d desc=8-way set associative
 +
|l1d policy=write-back
 +
|l2 cache=512 KiB
 +
|l2 break=2x256 KiB
 +
|l2 desc=8-way set associative
 +
|l2 policy=write-back
 +
|l3 cache=4 MiB
 +
|l3 break=2x2 MiB
 +
|l3 desc=16-way set associative
 +
|l3 policy=write-back
 +
}}
  
 
== Memory controller ==
 
== Memory controller ==

Revision as of 20:07, 2 September 2017

Template:mpu

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$128 KiB
131,072 B
0.125 MiB
L1I$64 KiB
65,536 B
0.0625 MiB
2x32 KiB8-way set associative 
L1D$64 KiB
65,536 B
0.0625 MiB
2x32 KiB8-way set associativewrite-back
L2$512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
  2x256 KiB8-way set associativewrite-back
L3$4 MiB
4,096 KiB
4,194,304 B
0.00391 GiB
  2x2 MiB16-way set associativewrite-back

Memory controller

Expansions

Graphics

Features

[Edit/Modify Supported Features]

Cog-icon-grey.svg
Supported x86 Extensions & Processor Features
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Facts about "Core i7-2640M - Intel"
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l1$ size128 KiB (131,072 B, 0.125 MiB) +
l1d$ description8-way set associative +
l1d$ size64 KiB (65,536 B, 0.0625 MiB) +
l1i$ description8-way set associative +
l1i$ size64 KiB (65,536 B, 0.0625 MiB) +
l2$ description8-way set associative +
l2$ size0.5 MiB (512 KiB, 524,288 B, 4.882812e-4 GiB) +
l3$ description16-way set associative +
l3$ size4 MiB (4,096 KiB, 4,194,304 B, 0.00391 GiB) +