Intel Corp (INTC)

[alexander-dumbass]

Geekbench3 86% 32kb L1 Reads hit and 94% Writes hit. I downloaded and ran the standard PINTOOL dcache tool and ran on my Linux i7-4700.

The AES "integer benchmark" on my i7-4700, is executed with the AESENC instruction which comprises 0.06% of the instructions but is given 10% to 15% weight in the "integer" metric.

The A7 includes has added not only the AES instructions but all the SHA instructions. They not only break the AES benchmark but also the SHA benchmarks. Breaking two benchmarks with new instructions impacts 25% of the "integer" metric portion.

It looks like the A7 is the first Apple design that uses a 64-bit bus to memory. That is likely the source of most of the performance increase AND the power consumption bump. That is when the process and leakage and .... gain importance.

Disclaimer: I think Geekbench is unrepresentative of anything.


PIN:MEMLATENCIES 1.0. 0x0
#
# DCACHE stats
#
# L1 Data Cache:
# Load-Hits: 218373856747 86.17%
# Load-Misses: 35057173434 13.83%
# Load-Accesses: 253431030181 100.00%
#
# Store-Hits: 86846876370 94.45%
# Store-Misses: 5102192868 5.55%
# Store-Accesses: 91949069238 100.00%
#
# Total-Hits: 305220733117 88.37%
# Total-Misses: 40159366302 11.63%
# Total-Accesses: 345380099419 100.00%


Processor Name: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
L1 Instruction Cache: 4 x 32 KB
L1 Data Cache: 4 x 32 KB
L2 Cache: 4 x 256 KB
L3 Cache: 8 MB