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Core i5-8250U vs i5-9500T


Description
The i5-8250U is based on Kaby Lake architecture while the i5-9500T is based on Coffee Lake.

Using the multithread performance as a reference, the i5-8250U gets a score of 161.3 k points while the i5-9500T gets 274 k points.

Summarizing, the i5-9500T is 1.7 times faster than the i5-8250U. 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
1.6 GHz
2.2 GHz
Boost frecuency
3.4 GHz
3.7 GHz
Socket
BGA1356
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
6144 kB
9216 kB
Date
August 2017
July 2019
Mean monothread perf.
54.31k points
61.46k points
Mean multithread perf.
161.26k points
274.02k 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
i5-8250U
i5-9500T
Test#1 (Integers)
3.32k
3.73k (x1.12)
Test#2 (FP)
13.5k
15.41k (x1.14)
Test#3 (Generic, ZIP)
4.11k
4.62k (x1.13)
Test#1 (Memory)
7.42k
10.59k (x1.43)
TOTAL
28.34k
34.35k (x1.21)

Multithread

i5-8250U

i5-9500T
Test#1 (Integers)
13.97k
20.82k (x1.49)
Test#2 (FP)
50.8k
85.48k (x1.68)
Test#3 (Generic, ZIP)
14.71k
23.21k (x1.58)
Test#1 (Memory)
4.76k
4.11k (x0.86)
TOTAL
84.24k
133.63k (x1.59)

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
i5-8250U
i5-9500T
Test#1 (Integers)
12.41k
12.4k (x1)
Test#2 (FP)
18.11k
18.41k (x1.02)
Test#3 (Generic, ZIP)
4.79k
4.69k (x0.98)
Test#1 (Memory)
8.16k
10.48k (x1.29)
TOTAL
43.46k
45.98k (x1.06)

Multithread

i5-8250U

i5-9500T
Test#1 (Integers)
42.48k
74.86k (x1.76)
Test#2 (FP)
60.2k
105.88k (x1.76)
Test#3 (Generic, ZIP)
14.85k
22.34k (x1.5)
Test#1 (Memory)
4.77k
4.01k (x0.84)
TOTAL
122.3k
207.08k (x1.69)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i5-8250U
i5-9500T
Test#1 (Integers)
12.59k
13.46k (x1.07)
Test#2 (FP)
18.89k
20.21k (x1.07)
Test#3 (Generic, ZIP)
4.65k
4.72k (x1.01)
Test#1 (Memory)
8.2k
10.25k (x1.25)
TOTAL
44.32k
48.64k (x1.1)

Multithread

i5-8250U

i5-9500T
Test#1 (Integers)
45.91k
74.65k (x1.63)
Test#2 (FP)
69.55k
110.86k (x1.59)
Test#3 (Generic, ZIP)
16.79k
22.08k (x1.31)
Test#1 (Memory)
4.83k
4.12k (x0.85)
TOTAL
137.09k
211.7k (x1.54)

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
i5-8250U
i5-9500T
Test#1 (Integers)
22.11k
24.5k (x1.11)
Test#2 (FP)
19.64k
21.41k (x1.09)
Test#3 (Generic, ZIP)
4.54k
4.82k (x1.06)
Test#1 (Memory)
8.03k
10.73k (x1.34)
TOTAL
54.31k
61.46k (x1.13)

Multithread

i5-8250U

i5-9500T
Test#1 (Integers)
74.19k
134.63k (x1.81)
Test#2 (FP)
66.27k
113.61k (x1.71)
Test#3 (Generic, ZIP)
15.97k
21.71k (x1.36)
Test#1 (Memory)
4.83k
4.07k (x0.84)
TOTAL
161.26k
274.02k (x1.7)

Performance/W
i5-8250U
i5-9500T
Test#1 (Integers)
4946 points/W
3846 points/W
Test#2 (FP)
4418 points/W
3246 points/W
Test#3 (Generic, ZIP)
1065 points/W
620 points/W
Test#1 (Memory)
322 points/W
116 points/W
TOTAL
10751 points/W
7829 points/W

Performance/GHz
i5-8250U
i5-9500T
Test#1 (Integers)
6503 points/GHz
6621 points/GHz
Test#2 (FP)
5777 points/GHz
5786 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
1302 points/GHz
Test#1 (Memory)
2361 points/GHz
2901 points/GHz
TOTAL
15975 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