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Core i5-2300 vs i7-8550U


Description
The i5-2300 is based on Sandy Bridge architecture while the i7-8550U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-2300 gets a score of 79.5 k points while the i7-8550U gets 105.9 k points.

Summarizing, the i7-8550U is 1.3 times faster than the i5-2300 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
806ea
Core
Sandy Bridge
Kaby Lake-R
Architecture
Base frecuency
2.8 GHz
1.8 GHz
Boost frecuency
3.1 GHz
4 GHz
Socket
LGA 1155
BGA1356
Cores/Threads
4/4
4/8
TDP
95 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
May 2011
August 2017
Mean monothread perf.
24.53k points
64.2k points
Mean multithread perf.
79.46k points
166.12k 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
i5-2300
i7-8550U
Test#1 (Integers)
2.52k
3.91k (x1.55)
Test#2 (FP)
7.01k
15.98k (x2.28)
Test#3 (Generic, ZIP)
3.77k
5.11k (x1.35)
Test#1 (Memory)
4.22k
11.05k (x2.62)
TOTAL
17.53k
36.05k (x2.06)

Multithread

i5-2300

i7-8550U
Test#1 (Integers)
9.46k
11.76k (x1.24)
Test#2 (FP)
26.25k
50.15k (x1.91)
Test#3 (Generic, ZIP)
14.1k
16.76k (x1.19)
Test#1 (Memory)
3.13k
4.17k (x1.33)
TOTAL
52.93k
82.84k (x1.56)

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
i5-2300
i7-8550U
Test#1 (Integers)
8.65k
13.15k (x1.52)
Test#2 (FP)
7.8k
19.7k (x2.53)
Test#3 (Generic, ZIP)
3.92k
5.1k (x1.3)
Test#1 (Memory)
4.16k
9.21k (x2.21)
TOTAL
24.53k
47.16k (x1.92)

Multithread

i5-2300

i7-8550U
Test#1 (Integers)
32.45k
34.13k (x1.05)
Test#2 (FP)
29.25k
53.79k (x1.84)
Test#3 (Generic, ZIP)
14.64k
13.91k (x0.95)
Test#1 (Memory)
3.12k
4.12k (x1.32)
TOTAL
79.46k
105.95k (x1.33)

Performance/W
i5-2300
i7-8550U
Test#1 (Integers)
342 points/W
2275 points/W
Test#2 (FP)
308 points/W
3586 points/W
Test#3 (Generic, ZIP)
154 points/W
927 points/W
Test#1 (Memory)
33 points/W
275 points/W
TOTAL
836 points/W
7063 points/W

Performance/GHz
i5-2300
i7-8550U
Test#1 (Integers)
2791 points/GHz
3288 points/GHz
Test#2 (FP)
2516 points/GHz
4924 points/GHz
Test#3 (Generic, ZIP)
1263 points/GHz
1275 points/GHz
Test#1 (Memory)
1343 points/GHz
2303 points/GHz
TOTAL
7912 points/GHz
11791 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