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Core i7-8650U vs i5-9500T


Description
The i7-8650U is based on Kaby Lake architecture while the i5-9500T is based on Coffee Lake.

Using the multithread performance as a reference, the i7-8650U gets a score of 173.5 k points while the i5-9500T gets 274 k points.

Summarizing, the i5-9500T is 1.6 times faster than the i7-8650U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
906ea
Core
Kaby Lake-R
Coffee Lake-S
Architecture
Base frecuency
1.9 GHz
2.2 GHz
Boost frecuency
4.2 GHz
3.7 GHz
Socket
BGA 1356
LGA 1151
Cores/Threads
4/8
6/6
TDP
15 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
August 2017
July 2019
Mean monothread perf.
55.86k points
61.46k points
Mean multithread perf.
173.49k points
274.02k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-8650U
i5-9500T
Test#1 (Integers)
21.61k
24.5k (x1.13)
Test#2 (FP)
19.69k
21.41k (x1.09)
Test#3 (Generic, ZIP)
4.61k
4.82k (x1.05)
Test#1 (Memory)
9.95k
10.73k (x1.08)
TOTAL
55.86k
61.46k (x1.1)

Multithread

i7-8650U

i5-9500T
Test#1 (Integers)
78.38k
134.63k (x1.72)
Test#2 (FP)
72.02k
113.61k (x1.58)
Test#3 (Generic, ZIP)
16.95k
21.71k (x1.28)
Test#1 (Memory)
6.15k
4.07k (x0.66)
TOTAL
173.49k
274.02k (x1.58)

Performance/W
i7-8650U
i5-9500T
Test#1 (Integers)
5225 points/W
3846 points/W
Test#2 (FP)
4802 points/W
3246 points/W
Test#3 (Generic, ZIP)
1130 points/W
620 points/W
Test#1 (Memory)
410 points/W
116 points/W
TOTAL
11566 points/W
7829 points/W

Performance/GHz
i7-8650U
i5-9500T
Test#1 (Integers)
5146 points/GHz
6621 points/GHz
Test#2 (FP)
4689 points/GHz
5786 points/GHz
Test#3 (Generic, ZIP)
1097 points/GHz
1302 points/GHz
Test#1 (Memory)
2368 points/GHz
2901 points/GHz
TOTAL
13300 points/GHz
16610 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