Core i7-1255U vs Xeon E5-1660 v3
Description
The i7-1255U is based on Alder Lake architecture while the E5-1660 v3 is based on Haswell.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the E5-1660 v3 gets 353 k points.
Summarizing, the E5-1660 v3 is 1.4 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the E5-1660 v3 gets 353 k points.
Summarizing, the E5-1660 v3 is 1.4 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906a4
306f2
Core
Alder Lake-U
Haswell-EP
Base frecuency
1.7 GHz
3 GHz
Boost frecuency
4.7 GHz
3.5 GHz
Socket
BGA 1744
LGA 2011-3
Cores/Threads
10/12
8/16
TDP
15 W
140 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
8x32+8x32 kB
Cache L2
2x1280+2x2048 kB
8x256 kB
Cache L3
12288 kB
20480 kB
Date
February 2022
September 2014
Mean monothread perf.
81.73k points
41.31k points
Mean multithread perf.
258.31k points
352.96k 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
E5-1660 v3
Test#1 (Integers)
38.32k
20.92k (x0.55)
Test#2 (FP)
21.35k
11.87k (x0.56)
Test#3 (Generic, ZIP)
11.2k
4.67k (x0.42)
Test#1 (Memory)
10.86k
3.85k (x0.35)
TOTAL
81.73k
41.31k (x0.51)
Multithread
i7-1255U
E5-1660 v3
Test#1 (Integers)
105.48k
174.59k (x1.66)
Test#2 (FP)
100.18k
116.47k (x1.16)
Test#3 (Generic, ZIP)
43.39k
44.79k (x1.03)
Test#1 (Memory)
9.26k
17.1k (x1.85)
TOTAL
258.31k
352.96k (x1.37)
Performance/W
i7-1255U
E5-1660 v3
Test#1 (Integers)
7032 points/W
1247 points/W
Test#2 (FP)
6678 points/W
832 points/W
Test#3 (Generic, ZIP)
2893 points/W
320 points/W
Test#1 (Memory)
617 points/W
122 points/W
TOTAL
17221 points/W
2521 points/W
Performance/GHz
i7-1255U
E5-1660 v3
Test#1 (Integers)
8154 points/GHz
5977 points/GHz
Test#2 (FP)
4543 points/GHz
3391 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
1333 points/GHz
Test#1 (Memory)
2311 points/GHz
1101 points/GHz
TOTAL
17390 points/GHz
11802 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4