Core i3-6100U vs Xeon E5645
Description
The i3-6100U is based on Skylake architecture while the E5645 is based on Westmere.
Using the multithread performance as a reference, the i3-6100U gets a score of 50.2 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.5 times faster than the i3-6100U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i3-6100U gets a score of 50.2 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.5 times faster than the i3-6100U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
406e3
206c2
Core
Skylake-U
Westmere-EP
Base frecuency
2.3 GHz
2.4 GHz
Boost frecuency
2.3 GHz
2.8 GHz
Socket
BGA1356
LGA 1366
Cores/Threads
2/4
6 /6
TDP
15 W
80 W
Cache L1 (d+i)
2x32+2x32 kB
64 kB
Cache L2
2x256 kB
256 kB
Cache L3
3072 kB
12288 kB
Date
September 2015
March 2010
Mean monothread perf.
30.73k points
15.64k points
Mean multithread perf.
69.94k points
76.96k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i3-6100U
E5645
Test#1 (Integers)
2.27k
1.78k (x0.78)
Test#2 (FP)
9.18k
3.91k (x0.43)
Test#3 (Generic, ZIP)
2.97k
2.52k (x0.85)
Test#1 (Memory)
3.79k
2.42k (x0.64)
TOTAL
18.21k
10.64k (x0.58)
Multithread
i3-6100U
E5645
Test#1 (Integers)
4.79k
9.67k (x2.02)
Test#2 (FP)
23.04k
22.92k (x0.99)
Test#3 (Generic, ZIP)
7.55k
14.31k (x1.9)
Test#1 (Memory)
3.86k
3.81k (x0.99)
TOTAL
39.24k
50.7k (x1.29)
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
i3-6100U
E5645
Test#1 (Integers)
7.99k
6.47k (x0.81)
Test#2 (FP)
11.82k
4.4k (x0.37)
Test#3 (Generic, ZIP)
2.97k
2.43k (x0.82)
Test#1 (Memory)
3.75k
2.33k (x0.62)
TOTAL
26.52k
15.64k (x0.59)
Multithread
i3-6100U
E5645
Test#1 (Integers)
15.44k
34.43k (x2.23)
Test#2 (FP)
23.79k
24.23k (x1.02)
Test#3 (Generic, ZIP)
6.93k
14.48k (x2.09)
Test#1 (Memory)
4.03k
3.81k (x0.95)
TOTAL
50.19k
76.96k (x1.53)
Performance/W
i3-6100U
E5645
Test#1 (Integers)
1029 points/W
430 points/W
Test#2 (FP)
1586 points/W
303 points/W
Test#3 (Generic, ZIP)
462 points/W
181 points/W
Test#1 (Memory)
269 points/W
48 points/W
TOTAL
3346 points/W
962 points/W
Performance/GHz
i3-6100U
E5645
Test#1 (Integers)
3474 points/GHz
2311 points/GHz
Test#2 (FP)
5137 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1290 points/GHz
867 points/GHz
Test#1 (Memory)
1631 points/GHz
833 points/GHz
TOTAL
11532 points/GHz
5584 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