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Core i7-7820HQ - Intel
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Revision as of 22:53, 6 January 2017 by David (talk | contribs) (+cache info)

Template:mpu Core i7-7820HQ is a 64-bit quad-core high-end performance x86 mobile microprocessor introduced by Intel in early 2017. This processor, which is based on the Kaby Lake microarchitecture, is manufactured on Intel's improved 14nm+ process. The i7-7820HQ operates at 2.9 GHz with a TDP of 45 W and with a Turbo Boost frequency of 3.9 GHz for a single active core. This MPU supports up to 64 GiB of dual-channel non-ECC DDR4-2400 memory and incorporates Intel's HD Graphics 630 IGP operating at 350 MHz with a burst frequency of 1.1 GHz.

Cache

Main article: Kaby Lake § Cache

[Edit/Modify Cache Info]

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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
0.25 MiB
262,144 B
2.441406e-4 GiB
L1I$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB8-way set associativewrite-back
L1D$128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4x32 KiB8-way set associativewrite-back

L2$1 MiB
1,024 KiB
1,048,576 B
9.765625e-4 GiB
  4x256 KiB4-way set associativewrite-back

L3$8 MiB
8,192 KiB
8,388,608 B
0.00781 GiB
  4x2 MiB12-way set associativewrite-back
l1$ size0.25 MiB (256 KiB, 262,144 B, 2.441406e-4 GiB) +
l1d$ description8-way set associative +
l1d$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l1i$ description8-way set associative +
l1i$ size0.125 MiB (128 KiB, 131,072 B, 1.220703e-4 GiB) +
l2$ description4-way set associative +
l2$ size1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) +
l3$ description12-way set associative +
l3$ size8 MiB (8,192 KiB, 8,388,608 B, 0.00781 GiB) +