Xeon E5645 vs Core i7-6500U
Description
The E5645 is based on Westmere architecture while the i7-6500U is based on Skylake.
Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the i7-6500U gets 76.8 k points.
Summarizing, the E5645 is 1 times faster than the i7-6500U. 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 i7-6500U gets 76.8 k points.
Summarizing, the E5645 is 1 times faster than the i7-6500U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206c2
406e3
Core
Westmere-EP
Skylake-U
Base frecuency
2.4 GHz
2.5 GHz
Boost frecuency
2.8 GHz
3.1 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
4096 kB
Cache L3
12288 kB
kB
Date
March 2010
September 2015
Mean monothread perf.
15.64k points
46.25k points
Mean multithread perf.
76.96k points
97.52k 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
i7-6500U
Test#1 (Integers)
1.78k
2.98k (x1.67)
Test#2 (FP)
3.91k
12.19k (x3.12)
Test#3 (Generic, ZIP)
2.52k
3.91k (x1.55)
Test#1 (Memory)
2.42k
5.3k (x2.19)
TOTAL
10.64k
24.37k (x2.29)
Multithread
E5645
i7-6500U
Test#1 (Integers)
9.67k
6.1k (x0.63)
Test#2 (FP)
22.92k
28.73k (x1.25)
Test#3 (Generic, ZIP)
14.31k
9.56k (x0.67)
Test#1 (Memory)
3.81k
6.71k (x1.76)
TOTAL
50.7k
51.09k (x1.01)
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
i7-6500U
Test#1 (Integers)
6.47k
11.11k (x1.72)
Test#2 (FP)
4.4k
15.97k (x3.63)
Test#3 (Generic, ZIP)
2.43k
4.25k (x1.75)
Test#1 (Memory)
2.33k
5.66k (x2.43)
TOTAL
15.64k
36.99k (x2.37)
Multithread
E5645
i7-6500U
Test#1 (Integers)
34.43k
23.1k (x0.67)
Test#2 (FP)
24.23k
36.73k (x1.52)
Test#3 (Generic, ZIP)
14.48k
9.99k (x0.69)
Test#1 (Memory)
3.81k
7k (x1.84)
TOTAL
76.96k
76.82k (x1)
Performance/W
E5645
i7-6500U
Test#1 (Integers)
430 points/W
1540 points/W
Test#2 (FP)
303 points/W
2449 points/W
Test#3 (Generic, ZIP)
181 points/W
666 points/W
Test#1 (Memory)
48 points/W
467 points/W
TOTAL
962 points/W
5121 points/W
Performance/GHz
E5645
i7-6500U
Test#1 (Integers)
2311 points/GHz
3582 points/GHz
Test#2 (FP)
1573 points/GHz
5152 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
1370 points/GHz
Test#1 (Memory)
833 points/GHz
1827 points/GHz
TOTAL
5584 points/GHz
11932 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