| | | | | | |

Core i5-10400F vs i5-8250U


Description
The i5-10400F is based on Comet Lake architecture while the i5-8250U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-10400F gets a score of 370 k points while the i5-8250U gets 161.3 k points.

Summarizing, the i5-10400F is 2.3 times faster than the i5-8250U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
806ea
Core
Comet Lake-S
Kaby Lake-R
Architecture
Base frecuency
2.9 GHz
1.6 GHz
Boost frecuency
4.3 GHz
3.4 GHz
Socket
LGA 1200
BGA1356
Cores/Threads
6/12
4/8
TDP
65 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
April 2020
August 2017
Mean monothread perf.
68.14k points
54.31k points
Mean multithread perf.
369.97k points
161.26k 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
i5-10400F
i5-8250U
Test#1 (Integers)
4.3k
3.32k (x0.77)
Test#2 (FP)
16.56k
13.5k (x0.81)
Test#3 (Generic, ZIP)
5.25k
4.11k (x0.78)
Test#1 (Memory)
12.61k
7.42k (x0.59)
TOTAL
38.72k
28.34k (x0.73)

Multithread

i5-10400F

i5-8250U
Test#1 (Integers)
18.1k
13.97k (x0.77)
Test#2 (FP)
79.16k
50.8k (x0.64)
Test#3 (Generic, ZIP)
26.75k
14.71k (x0.55)
Test#1 (Memory)
13.81k
4.76k (x0.34)
TOTAL
137.82k
84.24k (x0.61)

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
i5-10400F
i5-8250U
Test#1 (Integers)
26.28k
22.11k (x0.84)
Test#2 (FP)
23.38k
19.64k (x0.84)
Test#3 (Generic, ZIP)
5.52k
4.54k (x0.82)
Test#1 (Memory)
12.96k
8.03k (x0.62)
TOTAL
68.14k
54.31k (x0.8)

Multithread

i5-10400F

i5-8250U
Test#1 (Integers)
163.67k
74.19k (x0.45)
Test#2 (FP)
159.74k
66.27k (x0.41)
Test#3 (Generic, ZIP)
39k
15.97k (x0.41)
Test#1 (Memory)
7.56k
4.83k (x0.64)
TOTAL
369.97k
161.26k (x0.44)

Performance/W
i5-10400F
i5-8250U
Test#1 (Integers)
2518 points/W
4946 points/W
Test#2 (FP)
2457 points/W
4418 points/W
Test#3 (Generic, ZIP)
600 points/W
1065 points/W
Test#1 (Memory)
116 points/W
322 points/W
TOTAL
5692 points/W
10751 points/W

Performance/GHz
i5-10400F
i5-8250U
Test#1 (Integers)
6112 points/GHz
6503 points/GHz
Test#2 (FP)
5438 points/GHz
5777 points/GHz
Test#3 (Generic, ZIP)
1283 points/GHz
1334 points/GHz
Test#1 (Memory)
3014 points/GHz
2361 points/GHz
TOTAL
15847 points/GHz
15975 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