Xeon E5645 vs Core i7-7500U
Description
The E5645 is based on Westmere architecture while the i7-7500U is based on Kaby Lake.
Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the i7-7500U gets 87 k points.
Summarizing, the i7-7500U is 1.1 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 i7-7500U gets 87 k points.
Summarizing, the i7-7500U is 1.1 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206c2
806e9
Core
Westmere-EP
Kaby Lake-U
Base frecuency
2.4 GHz
2.7 GHz
Boost frecuency
2.8 GHz
3.5 GHz
Socket
LGA 1366
BGA1356
Cores/Threads
6 /6
2/4
TDP
80 W
15 W
Cache L1 (d+i)
64 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
12288 kB
4096 kB
Date
March 2010
August 2016
Mean monothread perf.
15.64k points
48.67k points
Mean multithread perf.
76.96k points
86.94k 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
i7-7500U
Test#1 (Integers)
1.78k
3.53k (x1.98)
Test#2 (FP)
3.91k
14.67k (x3.75)
Test#3 (Generic, ZIP)
2.52k
4.84k (x1.92)
Test#1 (Memory)
2.42k
6.26k (x2.58)
TOTAL
10.64k
29.29k (x2.75)
Multithread
E5645
i7-7500U
Test#1 (Integers)
9.67k
7.26k (x0.75)
Test#2 (FP)
22.92k
35.04k (x1.53)
Test#3 (Generic, ZIP)
14.31k
11.28k (x0.79)
Test#1 (Memory)
3.81k
5.69k (x1.5)
TOTAL
50.7k
59.27k (x1.17)
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
i7-7500U
Test#1 (Integers)
6.47k
12.93k (x2)
Test#2 (FP)
4.4k
18.63k (x4.23)
Test#3 (Generic, ZIP)
2.43k
5.03k (x2.07)
Test#1 (Memory)
2.33k
6.16k (x2.64)
TOTAL
15.64k
42.75k (x2.73)
Multithread
E5645
i7-7500U
Test#1 (Integers)
34.43k
27.13k (x0.79)
Test#2 (FP)
24.23k
43.19k (x1.78)
Test#3 (Generic, ZIP)
14.48k
11.7k (x0.81)
Test#1 (Memory)
3.81k
4.99k (x1.31)
TOTAL
76.96k
87.02k (x1.13)
Performance/W
E5645
i7-7500U
Test#1 (Integers)
430 points/W
1809 points/W
Test#2 (FP)
303 points/W
2880 points/W
Test#3 (Generic, ZIP)
181 points/W
780 points/W
Test#1 (Memory)
48 points/W
333 points/W
TOTAL
962 points/W
5801 points/W
Performance/GHz
E5645
i7-7500U
Test#1 (Integers)
2311 points/GHz
3695 points/GHz
Test#2 (FP)
1573 points/GHz
5322 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
1437 points/GHz
Test#1 (Memory)
833 points/GHz
1761 points/GHz
TOTAL
5584 points/GHz
12215 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