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Core i5-9300H vs i5-8250U


Description
The i5-9300H is based on Coffee Lake architecture while the i5-8250U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-9300H gets a score of 244.1 k points while the i5-8250U gets 153.5 k points.

Summarizing, the i5-9300H is 1.6 times faster than the i5-8250U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
806ea
Core
Coffee Lake-H
Kaby Lake-R
Architecture
Base frecuency
2.4 GHz
1.6 GHz
Boost frecuency
4.1 GHz
3.4 GHz
Socket
FCBGA1440
BGA1356
Cores/Threads
4/8
4/8
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
April 2019
August 2017
Mean monothread perf.
67.57k points
53.8k points
Mean multithread perf.
244.1k points
153.5k 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
i5-9300H
i5-8250U
Test#1 (Integers)
3.38k
3.32k (x0.98)
Test#2 (FP)
12.84k
13.5k (x1.05)
Test#3 (Generic, ZIP)
4.6k
4.11k (x0.89)
Test#1 (Memory)
6.23k
7.42k (x1.19)
TOTAL
27.05k
28.34k (x1.05)

Multithread

i5-9300H

i5-8250U
Test#1 (Integers)
11.6k
13.97k (x1.2)
Test#2 (FP)
48.01k
50.8k (x1.06)
Test#3 (Generic, ZIP)
17.05k
14.71k (x0.86)
Test#1 (Memory)
3.88k
4.76k (x1.23)
TOTAL
80.54k
84.24k (x1.05)

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
i5-9300H
i5-8250U
Test#1 (Integers)
26.62k
22k (x0.83)
Test#2 (FP)
23.38k
19.55k (x0.84)
Test#3 (Generic, ZIP)
5.52k
4.41k (x0.8)
Test#1 (Memory)
12.05k
7.83k (x0.65)
TOTAL
67.57k
53.8k (x0.8)

Multithread

i5-9300H

i5-8250U
Test#1 (Integers)
107.95k
70.15k (x0.65)
Test#2 (FP)
104.02k
63.27k (x0.61)
Test#3 (Generic, ZIP)
24.4k
15.29k (x0.63)
Test#1 (Memory)
7.74k
4.8k (x0.62)
TOTAL
244.1k
153.5k (x0.63)

Performance/W
i5-9300H
i5-8250U
Test#1 (Integers)
2399 points/W
4676 points/W
Test#2 (FP)
2312 points/W
4218 points/W
Test#3 (Generic, ZIP)
542 points/W
1019 points/W
Test#1 (Memory)
172 points/W
320 points/W
TOTAL
5424 points/W
10233 points/W

Performance/GHz
i5-9300H
i5-8250U
Test#1 (Integers)
6493 points/GHz
6471 points/GHz
Test#2 (FP)
5703 points/GHz
5750 points/GHz
Test#3 (Generic, ZIP)
1346 points/GHz
1298 points/GHz
Test#1 (Memory)
2938 points/GHz
2304 points/GHz
TOTAL
16480 points/GHz
15823 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