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Xeon E5645 vs Core i5-7500


Description
The E5645 is based on Westmere architecture while the i5-7500 is based on Kaby Lake.

Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the i5-7500 gets 154.8 k points.

Summarizing, the i5-7500 is 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
Architecture
Base frecuency
2.4 GHz
3.4 GHz
Boost frecuency
2.8 GHz
3.8 GHz
Socket
LGA 1366
LGA 1151
Cores/Threads
6 /6
4/4
TDP
80 W
65 W
Cache L1 (d+i)
64 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
12288 kB
6144 kB
Date
March 2010
September 2016
Mean monothread perf.
15.64k points
61.51k points
Mean multithread perf.
76.96k points
191.71k 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
i5-7500
Test#1 (Integers)
1.78k
3.87k (x2.17)
Test#2 (FP)
3.91k
16.09k (x4.12)
Test#3 (Generic, ZIP)
2.52k
5.11k (x2.02)
Test#1 (Memory)
2.42k
7.97k (x3.29)
TOTAL
10.64k
33.04k (x3.11)

Multithread

E5645

i5-7500
Test#1 (Integers)
9.67k
14.81k (x1.53)
Test#2 (FP)
22.92k
61.51k (x2.68)
Test#3 (Generic, ZIP)
14.31k
19.59k (x1.37)
Test#1 (Memory)
3.81k
3.68k (x0.97)
TOTAL
50.7k
99.59k (x1.96)

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
i5-7500
Test#1 (Integers)
6.47k
14.09k (x2.18)
Test#2 (FP)
4.4k
19.8k (x4.5)
Test#3 (Generic, ZIP)
2.43k
5.34k (x2.2)
Test#1 (Memory)
2.33k
8.45k (x3.62)
TOTAL
15.64k
47.67k (x3.05)

Multithread

E5645

i5-7500
Test#1 (Integers)
34.43k
53.99k (x1.57)
Test#2 (FP)
24.23k
77.43k (x3.2)
Test#3 (Generic, ZIP)
14.48k
20.81k (x1.44)
Test#1 (Memory)
3.81k
2.53k (x0.66)
TOTAL
76.96k
154.77k (x2.01)

Performance/W
E5645
i5-7500
Test#1 (Integers)
430 points/W
831 points/W
Test#2 (FP)
303 points/W
1191 points/W
Test#3 (Generic, ZIP)
181 points/W
320 points/W
Test#1 (Memory)
48 points/W
39 points/W
TOTAL
962 points/W
2381 points/W

Performance/GHz
E5645
i5-7500
Test#1 (Integers)
2311 points/GHz
3707 points/GHz
Test#2 (FP)
1573 points/GHz
5210 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
1406 points/GHz
Test#1 (Memory)
833 points/GHz
2222 points/GHz
TOTAL
5584 points/GHz
12546 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