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Core i7-8750H vs Xeon E5645


Description
The i7-8750H is based on Coffee Lake architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the i7-8750H gets a score of 52.2 k points while the E5645 gets 50.7 k points.

Summarizing, the i7-8750H is 1 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
206c2
Core
Coffee Lake-H
Westmere-EP
Architecture
Base frecuency
2.2 GHz
2.4 GHz
Boost frecuency
4.1 GHz
2.8 GHz
Socket
BGA1440
LGA 1366
Cores/Threads
6/12
6 /6
TDP
45 W
80 W
Cache L1 (d+i)
6x32+6x32 kB
64 kB
Cache L2
6x256 kB
256 kB
Cache L3
9216 kB
12288 kB
Date
April 2018
March 2010
Mean monothread perf.
53.41k points
15.64k points
Mean multithread perf.
231.9k 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
i7-8750H
E5645
Test#1 (Integers)
3.01k
1.78k (x0.59)
Test#2 (FP)
11.68k
3.91k (x0.33)
Test#3 (Generic, ZIP)
3.78k
2.52k (x0.67)
Test#1 (Memory)
5.64k
2.42k (x0.43)
TOTAL
24.12k
10.64k (x0.44)

Multithread

i7-8750H

E5645
Test#1 (Integers)
7.4k
9.67k (x1.31)
Test#2 (FP)
29.99k
22.92k (x0.76)
Test#3 (Generic, ZIP)
9.66k
14.31k (x1.48)
Test#1 (Memory)
5.12k
3.81k (x0.74)
TOTAL
52.18k
50.7k (x0.97)

Performance/W
i7-8750H
E5645
Test#1 (Integers)
165 points/W
121 points/W
Test#2 (FP)
667 points/W
286 points/W
Test#3 (Generic, ZIP)
215 points/W
179 points/W
Test#1 (Memory)
114 points/W
48 points/W
TOTAL
1160 points/W
634 points/W

Performance/GHz
i7-8750H
E5645
Test#1 (Integers)
734 points/GHz
635 points/GHz
Test#2 (FP)
2850 points/GHz
1397 points/GHz
Test#3 (Generic, ZIP)
922 points/GHz
901 points/GHz
Test#1 (Memory)
1377 points/GHz
865 points/GHz
TOTAL
5883 points/GHz
3798 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