Core i5-8265U vs Xeon E5645
Description
The i5-8265U is based on Whiskey Lake architecture while the E5645 is based on Westmere.
Using the multithread performance as a reference, the i5-8265U gets a score of 149.2 k points while the E5645 gets 77 k points.
Summarizing, the i5-8265U is 1.9 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 i5-8265U gets a score of 149.2 k points while the E5645 gets 77 k points.
Summarizing, the i5-8265U is 1.9 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ec
206c2
Core
Whiskey Lake-U
Westmere-EP
Base frecuency
1.6 GHz
2.4 GHz
Boost frecuency
3.9 GHz
2.8 GHz
Socket
BGA1528
LGA 1366
Cores/Threads
4/8
6 /6
TDP
15 W
80 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
12288 kB
Date
August 2018
March 2010
Mean monothread perf.
46.67k points
15.64k points
Mean multithread perf.
143.23k 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
i5-8265U
E5645
Test#1 (Integers)
3.68k
1.78k (x0.48)
Test#2 (FP)
16.08k
3.91k (x0.24)
Test#3 (Generic, ZIP)
4.99k
2.52k (x0.51)
Test#1 (Memory)
7.95k
2.42k (x0.3)
TOTAL
32.69k
10.64k (x0.33)
Multithread
i5-8265U
E5645
Test#1 (Integers)
14.29k
9.67k (x0.68)
Test#2 (FP)
61.15k
22.92k (x0.37)
Test#3 (Generic, ZIP)
16.53k
14.31k (x0.87)
Test#1 (Memory)
3.72k
3.81k (x1.02)
TOTAL
95.69k
50.7k (x0.53)
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
i5-8265U
E5645
Test#1 (Integers)
13.6k
6.47k (x0.48)
Test#2 (FP)
20.03k
4.4k (x0.22)
Test#3 (Generic, ZIP)
5.19k
2.43k (x0.47)
Test#1 (Memory)
7.05k
2.33k (x0.33)
TOTAL
45.87k
15.64k (x0.34)
Multithread
i5-8265U
E5645
Test#1 (Integers)
51.42k
34.43k (x0.67)
Test#2 (FP)
77.48k
24.23k (x0.31)
Test#3 (Generic, ZIP)
16.65k
14.48k (x0.87)
Test#1 (Memory)
3.69k
3.81k (x1.03)
TOTAL
149.24k
76.96k (x0.52)
Performance/W
i5-8265U
E5645
Test#1 (Integers)
3428 points/W
430 points/W
Test#2 (FP)
5165 points/W
303 points/W
Test#3 (Generic, ZIP)
1110 points/W
181 points/W
Test#1 (Memory)
246 points/W
48 points/W
TOTAL
9949 points/W
962 points/W
Performance/GHz
i5-8265U
E5645
Test#1 (Integers)
3487 points/GHz
2311 points/GHz
Test#2 (FP)
5135 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1332 points/GHz
867 points/GHz
Test#1 (Memory)
1808 points/GHz
833 points/GHz
TOTAL
11762 points/GHz
5584 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