Xeon E5645 vs Core i3-7100
Description
The E5645 is based on Westmere architecture while the i3-7100 is based on Kaby Lake.
Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the i3-7100 gets 94.6 k points.
Summarizing, the i3-7100 is 1.2 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the i3-7100 gets 94.6 k points.
Summarizing, the i3-7100 is 1.2 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206c2
906e9
Core
Westmere-EP
Kaby Lake-S
Base frecuency
2.4 GHz
3.9 GHz
Boost frecuency
2.8 GHz
3.9 GHz
Socket
LGA 1366
LGA 1151
Cores/Threads
6 /6
2/4
TDP
80 W
51 W
Cache L1 (d+i)
64 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
12288 kB
3072 kB
Date
March 2010
January 2017
Mean monothread perf.
15.64k points
58.55k points
Mean multithread perf.
76.96k points
126.47k 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
E5645
i3-7100
Test#1 (Integers)
1.78k
4.01k (x2.25)
Test#2 (FP)
3.91k
16.38k (x4.19)
Test#3 (Generic, ZIP)
2.52k
5.31k (x2.1)
Test#1 (Memory)
2.42k
3.98k (x1.64)
TOTAL
10.64k
29.69k (x2.79)
Multithread
E5645
i3-7100
Test#1 (Integers)
9.67k
8.1k (x0.84)
Test#2 (FP)
22.92k
38.7k (x1.69)
Test#3 (Generic, ZIP)
14.31k
12.69k (x0.89)
Test#1 (Memory)
3.81k
3.76k (x0.99)
TOTAL
50.7k
63.24k (x1.25)
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
E5645
i3-7100
Test#1 (Integers)
6.47k
14.04k (x2.17)
Test#2 (FP)
4.4k
20.55k (x4.67)
Test#3 (Generic, ZIP)
2.43k
5.41k (x2.23)
Test#1 (Memory)
2.33k
3.99k (x1.71)
TOTAL
15.64k
43.99k (x2.81)
Multithread
E5645
i3-7100
Test#1 (Integers)
34.43k
30.09k (x0.87)
Test#2 (FP)
24.23k
47.84k (x1.97)
Test#3 (Generic, ZIP)
14.48k
13.13k (x0.91)
Test#1 (Memory)
3.81k
3.52k (x0.92)
TOTAL
76.96k
94.59k (x1.23)
Performance/W
E5645
i3-7100
Test#1 (Integers)
430 points/W
590 points/W
Test#2 (FP)
303 points/W
938 points/W
Test#3 (Generic, ZIP)
181 points/W
258 points/W
Test#1 (Memory)
48 points/W
69 points/W
TOTAL
962 points/W
1855 points/W
Performance/GHz
E5645
i3-7100
Test#1 (Integers)
2311 points/GHz
3601 points/GHz
Test#2 (FP)
1573 points/GHz
5268 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
1386 points/GHz
Test#1 (Memory)
833 points/GHz
1024 points/GHz
TOTAL
5584 points/GHz
11279 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