Core i5-7300U vs i5-8250U
Description
Both models i5-7300U and i5-8250U are based on Kaby Lake architecture.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i5-7300U gets a score of 109.1 k points while the i5-8250U gets 161.3 k points.
Summarizing, the i5-8250U is 1.5 times faster than the i5-7300U. To get a proper comparison between both models, take a look to the data shown below.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i5-7300U gets a score of 109.1 k points while the i5-8250U gets 161.3 k points.
Summarizing, the i5-8250U is 1.5 times faster than the i5-7300U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806e9
806ea
Core
Kaby Lake-U
Kaby Lake-R
Base frecuency
2.6 GHz
1.6 GHz
Boost frecuency
3.5 GHz
3.4 GHz
Socket
BGA1356
BGA1356
Cores/Threads
2/4
4/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
January 2017
August 2017
Mean monothread perf.
48.25k points
54.31k points
Mean multithread perf.
109.1k 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
i5-7300U
i5-8250U
Test#1 (Integers)
3.11k
3.32k (x1.07)
Test#2 (FP)
12.24k
13.5k (x1.1)
Test#3 (Generic, ZIP)
4.1k
4.11k (x1)
Test#1 (Memory)
4.96k
7.42k (x1.5)
TOTAL
24.41k
28.34k (x1.16)
Multithread
i5-7300U
i5-8250U
Test#1 (Integers)
6.98k
13.97k (x2)
Test#2 (FP)
32.05k
50.8k (x1.59)
Test#3 (Generic, ZIP)
10.82k
14.71k (x1.36)
Test#1 (Memory)
5.52k
4.76k (x0.86)
TOTAL
55.36k
84.24k (x1.52)
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
i5-7300U
i5-8250U
Test#1 (Integers)
9.96k
12.41k (x1.25)
Test#2 (FP)
15.11k
18.11k (x1.2)
Test#3 (Generic, ZIP)
3.87k
4.79k (x1.24)
Test#1 (Memory)
4.54k
8.16k (x1.8)
TOTAL
33.47k
43.46k (x1.3)
Multithread
i5-7300U
i5-8250U
Test#1 (Integers)
25.26k
42.48k (x1.68)
Test#2 (FP)
40.6k
60.2k (x1.48)
Test#3 (Generic, ZIP)
11.24k
14.85k (x1.32)
Test#1 (Memory)
5.83k
4.77k (x0.82)
TOTAL
82.94k
122.3k (x1.47)
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
i5-7300U
i5-8250U
Test#1 (Integers)
9.85k
12.59k (x1.28)
Test#2 (FP)
17.37k
18.89k (x1.09)
Test#3 (Generic, ZIP)
3.98k
4.65k (x1.17)
Test#1 (Memory)
5.11k
8.2k (x1.6)
TOTAL
36.31k
44.32k (x1.22)
Multithread
i5-7300U
i5-8250U
Test#1 (Integers)
25.37k
45.91k (x1.81)
Test#2 (FP)
43.43k
69.55k (x1.6)
Test#3 (Generic, ZIP)
10.62k
16.79k (x1.58)
Test#1 (Memory)
5.4k
4.83k (x0.9)
TOTAL
84.82k
137.09k (x1.62)
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
i5-7300U
i5-8250U
Test#1 (Integers)
20.18k
22.11k (x1.1)
Test#2 (FP)
18.57k
19.64k (x1.06)
Test#3 (Generic, ZIP)
4.24k
4.54k (x1.07)
Test#1 (Memory)
5.25k
8.03k (x1.53)
TOTAL
48.25k
54.31k (x1.13)
Multithread
i5-7300U
i5-8250U
Test#1 (Integers)
47.75k
74.19k (x1.55)
Test#2 (FP)
44.82k
66.27k (x1.48)
Test#3 (Generic, ZIP)
10.82k
15.97k (x1.48)
Test#1 (Memory)
5.7k
4.83k (x0.85)
TOTAL
109.1k
161.26k (x1.48)
Performance/W
i5-7300U
i5-8250U
Test#1 (Integers)
3184 points/W
4946 points/W
Test#2 (FP)
2988 points/W
4418 points/W
Test#3 (Generic, ZIP)
721 points/W
1065 points/W
Test#1 (Memory)
380 points/W
322 points/W
TOTAL
7273 points/W
10751 points/W
Performance/GHz
i5-7300U
i5-8250U
Test#1 (Integers)
5766 points/GHz
6503 points/GHz
Test#2 (FP)
5306 points/GHz
5777 points/GHz
Test#3 (Generic, ZIP)
1213 points/GHz
1334 points/GHz
Test#1 (Memory)
1501 points/GHz
2361 points/GHz
TOTAL
13785 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4