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Core i5-8250U vs i5-8259U


Description
The i5-8250U is based on Kaby Lake architecture while the i5-8259U 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 i5-8259U gets 229 k points.

Summarizing, the i5-8259U is 1.4 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
806ea
Core
Kaby Lake-R
Coffee Lake-U
Architecture
Base frecuency
1.6 GHz
2.3 GHz
Boost frecuency
3.4 GHz
3.8 GHz
Socket
BGA1356
BGA 1528
Cores/Threads
4/8
4/8
TDP
15 W
28 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+x4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
August 2017
March 2018
Mean monothread perf.
54.31k points
54.55k points
Mean multithread perf.
161.26k points
229k 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
i5-8250U
i5-8259U
Test#1 (Integers)
22.11k
21.06k (x0.95)
Test#2 (FP)
19.64k
19.79k (x1.01)
Test#3 (Generic, ZIP)
4.54k
4.72k (x1.04)
Test#1 (Memory)
8.03k
8.98k (x1.12)
TOTAL
54.31k
54.55k (x1)

Multithread

i5-8250U

i5-8259U
Test#1 (Integers)
74.19k
96.43k (x1.3)
Test#2 (FP)
66.27k
85.46k (x1.29)
Test#3 (Generic, ZIP)
15.97k
22.31k (x1.4)
Test#1 (Memory)
4.83k
24.81k (x5.13)
TOTAL
161.26k
229k (x1.42)

Performance/W
i5-8250U
i5-8259U
Test#1 (Integers)
4946 points/W
3444 points/W
Test#2 (FP)
4418 points/W
3052 points/W
Test#3 (Generic, ZIP)
1065 points/W
797 points/W
Test#1 (Memory)
322 points/W
886 points/W
TOTAL
10751 points/W
8179 points/W

Performance/GHz
i5-8250U
i5-8259U
Test#1 (Integers)
6503 points/GHz
5543 points/GHz
Test#2 (FP)
5777 points/GHz
5208 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
1241 points/GHz
Test#1 (Memory)
2361 points/GHz
2363 points/GHz
TOTAL
15975 points/GHz
14355 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