Core i5-8250U vs i5-2400

Description

The i5-8250U is based on Kaby Lake architecture while the i5-2400 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 i5-2400 gets 84.4 k points.

Summarizing, the i5-8250U is 1.6 times faster than the i5-2400 . To get a proper comparison between both models, take a look to the data shown below.

Specs

i5-8250U

i5-2400

CPUID

806ea

206a7

Core

Kaby Lake-R

Sandy Bridge

Architecture

Kaby Lake

Sandy Bridge

Base frecuency

1.6 GHz

3.1 GHz

Boost frecuency

3.4 GHz

Socket

BGA1356

LGA 1155

Cores/Threads

4/8

4/4

TDP

15 W

95 W

Cache L1 (d+i)

4x32+4x32 kB

4x32+x4x32 kB

Cache L2

4x256 kB

Cache L3

6144 kB

Date

August 2017

January 2011

Mean monothread perf.

54.31k points

25.49k points

Mean multithread perf.

161.26k points

84.36k 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

i5-2400

Test#1 (Integers)

3.32k

2.72k (x0.82)

Test#2 (FP)

13.5k

7.6k (x0.56)

Test#3 (Generic, ZIP)

4.11k

3.98k (x0.97)

Test#1 (Memory)

7.42k

4.47k (x0.6)

TOTAL

28.34k

18.78k (x0.66)

Multithread

i5-8250U

i5-2400

Test#1 (Integers)

13.97k

10.37k (x0.74)

Test#2 (FP)

50.8k

28.84k (x0.57)

Test#3 (Generic, ZIP)

14.71k

15.08k (x1.02)

Test#1 (Memory)

4.76k

4.67k (x0.98)

TOTAL

84.24k

58.95k (x0.7)

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

i5-2400

Test#1 (Integers)

12.59k

9.16k (x0.73)

Test#2 (FP)

18.89k

8.2k (x0.43)

Test#3 (Generic, ZIP)

4.65k

3.95k (x0.85)

Test#1 (Memory)

8.2k

4.17k (x0.51)

TOTAL

44.32k

25.49k (x0.58)

Multithread

i5-8250U

i5-2400

Test#1 (Integers)

45.91k

34.74k (x0.76)

Test#2 (FP)

69.55k

31.07k (x0.45)

Test#3 (Generic, ZIP)

16.79k

14.86k (x0.88)

Test#1 (Memory)

4.83k

3.69k (x0.76)

TOTAL

137.09k

84.36k (x0.62)

Performance/W

i5-8250U

i5-2400

Test#1 (Integers)

3061 points/W

366 points/W

Test#2 (FP)

4637 points/W

327 points/W

Test#3 (Generic, ZIP)

1120 points/W

156 points/W

Test#1 (Memory)

322 points/W

39 points/W

TOTAL

9139 points/W

888 points/W

Performance/GHz

i5-8250U

i5-2400

Test#1 (Integers)

3702 points/GHz

2695 points/GHz

Test#2 (FP)

5556 points/GHz

2411 points/GHz

Test#3 (Generic, ZIP)

1367 points/GHz

1163 points/GHz

Test#1 (Memory)

2411 points/GHz

1228 points/GHz

TOTAL

13036 points/GHz

7497 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]

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.

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