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Xeon E5-2667 v3 vs Core i7-1255U


Description
The E5-2667 v3 is based on Haswell architecture while the i7-1255U is based on Alder Lake.

Using the multithread performance as a reference, the E5-2667 v3 gets a score of 343.6 k points while the i7-1255U gets 258.3 k points.

Summarizing, the E5-2667 v3 is 1.3 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
906a4
Core
Haswell-EP
Alder Lake-U
Architecture
Base frecuency
3.2 GHz
1.7 GHz
Boost frecuency
3.6 GHz
4.7 GHz
Socket
LGA 2011-3
BGA 1744
Cores/Threads
8/16
10/12
TDP
135 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
8x256 kB
2x1280+2x2048 kB
Cache L3
20480 kB
12288 kB
Date
September 2014
February 2022
Mean monothread perf.
41.36k points
81.73k points
Mean multithread perf.
343.64k points
258.31k 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
E5-2667 v3
i7-1255U
Test#1 (Integers)
20.99k
38.32k (x1.83)
Test#2 (FP)
11.9k
21.35k (x1.79)
Test#3 (Generic, ZIP)
4.72k
11.2k (x2.37)
Test#1 (Memory)
3.75k
10.86k (x2.89)
TOTAL
41.36k
81.73k (x1.98)

Multithread

E5-2667 v3

i7-1255U
Test#1 (Integers)
172.62k
105.48k (x0.61)
Test#2 (FP)
110.03k
100.18k (x0.91)
Test#3 (Generic, ZIP)
44.06k
43.39k (x0.98)
Test#1 (Memory)
16.93k
9.26k (x0.55)
TOTAL
343.64k
258.31k (x0.75)

Performance/W
E5-2667 v3
i7-1255U
Test#1 (Integers)
1279 points/W
7032 points/W
Test#2 (FP)
815 points/W
6678 points/W
Test#3 (Generic, ZIP)
326 points/W
2893 points/W
Test#1 (Memory)
125 points/W
617 points/W
TOTAL
2545 points/W
17221 points/W

Performance/GHz
E5-2667 v3
i7-1255U
Test#1 (Integers)
5830 points/GHz
8154 points/GHz
Test#2 (FP)
3305 points/GHz
4543 points/GHz
Test#3 (Generic, ZIP)
1311 points/GHz
2382 points/GHz
Test#1 (Memory)
1043 points/GHz
2311 points/GHz
TOTAL
11489 points/GHz
17390 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4