| | | | | | |

Core i5-8265U vs i5-2400


Description
The i5-8265U is based on Whiskey Lake architecture while the i5-2400 is based on Sandy Bridge.

Using the multithread performance as a reference, the i5-8265U gets a score of 151.4 k points while the i5-2400 gets 84.4 k points.

Summarizing, the i5-8265U is 1.8 times faster than the i5-2400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ec
206a7
Core
Whiskey Lake-U
Sandy Bridge
Architecture
Base frecuency
1.6 GHz
3.1 GHz
Boost frecuency
3.9 GHz
3.4 GHz
Socket
BGA1528
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
4x256 kB
Cache L3
6144 kB
6144 kB
Date
August 2018
January 2011
Mean monothread perf.
46.67k points
25.49k points
Mean multithread perf.
143.23k 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
i5-8265U
i5-2400
Test#1 (Integers)
3.68k
2.72k (x0.74)
Test#2 (FP)
16.08k
7.6k (x0.47)
Test#3 (Generic, ZIP)
4.99k
3.98k (x0.8)
Test#1 (Memory)
7.95k
4.47k (x0.56)
TOTAL
32.69k
18.78k (x0.57)

Multithread

i5-8265U

i5-2400
Test#1 (Integers)
14.29k
10.37k (x0.73)
Test#2 (FP)
61.15k
28.84k (x0.47)
Test#3 (Generic, ZIP)
16.53k
15.08k (x0.91)
Test#1 (Memory)
3.72k
4.67k (x1.25)
TOTAL
95.69k
58.95k (x0.62)

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
i5-8265U
i5-2400
Test#1 (Integers)
13.66k
9.16k (x0.67)
Test#2 (FP)
21.17k
8.2k (x0.39)
Test#3 (Generic, ZIP)
5k
3.95k (x0.79)
Test#1 (Memory)
8.11k
4.17k (x0.51)
TOTAL
47.94k
25.49k (x0.53)

Multithread

i5-8265U

i5-2400
Test#1 (Integers)
51.36k
34.74k (x0.68)
Test#2 (FP)
79.72k
31.07k (x0.39)
Test#3 (Generic, ZIP)
16.61k
14.86k (x0.89)
Test#1 (Memory)
3.75k
3.69k (x0.98)
TOTAL
151.44k
84.36k (x0.56)

Performance/W
i5-8265U
i5-2400
Test#1 (Integers)
3424 points/W
366 points/W
Test#2 (FP)
5314 points/W
327 points/W
Test#3 (Generic, ZIP)
1108 points/W
156 points/W
Test#1 (Memory)
250 points/W
39 points/W
TOTAL
10096 points/W
888 points/W

Performance/GHz
i5-8265U
i5-2400
Test#1 (Integers)
3502 points/GHz
2695 points/GHz
Test#2 (FP)
5429 points/GHz
2411 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1163 points/GHz
Test#1 (Memory)
2081 points/GHz
1228 points/GHz
TOTAL
12293 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]

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