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Core i5-1235U vs Xeon E5-2651 v2


Description
The i5-1235U is based on Alder Lake architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i5-1235U gets a score of 301.6 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the E5-2651 v2 is 1.4 times faster than the i5-1235U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
306e4
Core
Alder Lake-U
Ivy Bridge-EP
Architecture
Base frecuency
3.3 GHz
1.8 GHz
Boost frecuency
4.4 GHz
2.2 GHz
Socket
BGA 1700
LGA 2011
Cores/Threads
10/12
12/24
TDP
15 W
W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
12x32+12x32 kB
Cache L2
1x1280+4x2048 kB
12x256 kB
Cache L3
12288 kB
30720 kB
Date
April 2022
October 2013
Mean monothread perf.
81.64k points
17.75k points
Mean multithread perf.
297.46k points
426.18k points

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i5-1235U
E5-2651 v2
Test#1 (Integers)
23.53k
6.75k (x0.29)
Test#2 (FP)
23.51k
6.05k (x0.26)
Test#3 (Generic, ZIP)
14.71k
2.61k (x0.18)
Test#1 (Memory)
13.24k
2.26k (x0.17)
TOTAL
74.99k
17.68k (x0.24)

Multithread

i5-1235U

E5-2651 v2
Test#1 (Integers)
106.07k
168.18k (x1.59)
Test#2 (FP)
115.88k
159.6k (x1.38)
Test#3 (Generic, ZIP)
60.53k
77.04k (x1.27)
Test#1 (Memory)
5.88k
10.19k (x1.73)
TOTAL
288.36k
415.01k (x1.44)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i5-1235U
E5-2651 v2
Test#1 (Integers)
23.03k
6.69k (x0.29)
Test#2 (FP)
24.11k
6.35k (x0.26)
Test#3 (Generic, ZIP)
13.9k
2.54k (x0.18)
Test#1 (Memory)
12.11k
2.17k (x0.18)
TOTAL
73.15k
17.75k (x0.24)

Multithread

i5-1235U

E5-2651 v2
Test#1 (Integers)
111.78k
165.17k (x1.48)
Test#2 (FP)
124.18k
176.85k (x1.42)
Test#3 (Generic, ZIP)
59.87k
73.91k (x1.23)
Test#1 (Memory)
5.76k
10.25k (x1.78)
TOTAL
301.58k
426.18k (x1.41)

Performance/W
i5-1235U
E5-2651 v2
Test#1 (Integers)
7452 points/W