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Core i7-1255U vs Engineering Sample 506E8


Description
The i7-1255U is based on Alder Lake architecture while the 506E8 is based on Kaby Lake.

Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the 506E8 gets 211.6 k points.

Summarizing, the i7-1255U is 1.2 times faster than the 506E8. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
506e8
Core
Alder Lake-U
Kaby Lake
Architecture
Base frecuency
1.7 GHz
2.4 GHz
Boost frecuency
4.7 GHz
3.7 GHz
Socket
BGA 1744
LGA 1151
Cores/Threads
10/12
4/8
TDP
15 W
- W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
4x32+4x32 kB
Cache L2
2x1280+2x2048 kB
4x256 kB
Cache L3
12288 kB
8192 kB
Date
February 2022
June 2016
Mean monothread perf.
81.73k points
56.39k points
Mean multithread perf.
258.31k points
211.6k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-1255U
506E8
Test#1 (Integers)
38.32k
23.91k (x0.62)
Test#2 (FP)
21.35k
21.03k (x0.98)
Test#3 (Generic, ZIP)
11.2k
5.05k (x0.45)
Test#1 (Memory)
10.86k
6.4k (x0.59)
TOTAL
81.73k
56.39k (x0.69)

Multithread

i7-1255U

506E8
Test#1 (Integers)
105.48k
95.3k (x0.9)
Test#2 (FP)
100.18k
91.94k (x0.92)
Test#3 (Generic, ZIP)
43.39k
22.06k (x0.51)
Test#1 (Memory)
9.26k
2.3k (x0.25)
TOTAL
258.31k
211.6k (x0.82)

Performance/W
i7-1255U
506E8
Test#1 (Integers)
7032 points/W