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Core i5-8250U vs i5-2300


Description
The i5-8250U is based on Kaby Lake architecture while the i5-2300 is based on Sandy Bridge.

Using the multithread performance as a reference, the i5-8250U gets a score of 137.1 k points while the i5-2300 gets 79.5 k points.

Summarizing, the i5-8250U is 1.7 times faster than the i5-2300 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
206a7
Core
Kaby Lake-R
Sandy Bridge
Architecture
Base frecuency
1.6 GHz
2.8 GHz
Boost frecuency
3.4 GHz
3.1 GHz
Socket
BGA1356
LGA 1155
Cores/Threads
4/8
4/4
TDP
15 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
August 2017
May 2011
Mean monothread perf.
54.31k points
24.53k points
Mean multithread perf.
161.26k points
79.46k 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
i5-8250U
i5-2300
Test#1 (Integers)
3.32k
2.52k (x0.76)
Test#2 (FP)
13.5k
7.01k (x0.52)
Test#3 (Generic, ZIP)
4.11k
3.77k (x0.92)
Test#1 (Memory)
7.42k
4.22k (x0.57)
TOTAL
28.34k
17.53k (x0.62)

Multithread

i5-8250U

i5-2300
Test#1 (Integers)
13.97k
9.46k (x0.68)
Test#2 (FP)
50.8k
26.25k (x0.52)
Test#3 (Generic, ZIP)
14.71k
14.1k (x0.96)
Test#1 (Memory)
4.76k
3.13k (x0.66)
TOTAL
84.24k
52.93k (x0.63)

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
i5-8250U
i5-2300
Test#1 (Integers)
12.59k
8.65k (x0.69)
Test#2 (FP)
18.89k
7.8k (x0.41)
Test#3 (Generic, ZIP)
4.65k
3.92k (x0.84)
Test#1 (Memory)
8.2k
4.16k (x0.51)
TOTAL
44.32k
24.53k (x0.55)

Multithread

i5-8250U

i5-2300
Test#1 (Integers)
45.91k
32.45k (x0.71)
Test#2 (FP)
69.55k
29.25k (x0.42)
Test#3 (Generic, ZIP)
16.79k
14.64k (x0.87)
Test#1 (Memory)
4.83k
3.12k (x0.65)
TOTAL
137.09k
79.46k (x0.58)

Performance/W
i5-8250U
i5-2300
Test#1 (Integers)
3061 points/W
342 points/W
Test#2 (FP)
4637 points/W
308 points/W
Test#3 (Generic, ZIP)
1120 points/W
154 points/W
Test#1 (Memory)
322 points/W
33 points/W
TOTAL
9139 points/W
836 points/W

Performance/GHz
i5-8250U
i5-2300
Test#1 (Integers)
3702 points/GHz
2791 points/GHz
Test#2 (FP)
5556 points/GHz
2516 points/GHz
Test#3 (Generic, ZIP)
1367 points/GHz
1263 points/GHz
Test#1 (Memory)
2411 points/GHz
1343 points/GHz
TOTAL
13036 points/GHz
7912 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