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Core i7-4790 vs i5-2400


Description
The i7-4790 is based on Haswell architecture while the i5-2400 is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-4790 gets a score of 150.1 k points while the i5-2400 gets 84.4 k points.

Summarizing, the i7-4790 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
306c3
206a7
Core
Haswell
Sandy Bridge
Architecture
Base frecuency
3.6 GHz
3.1 GHz
Boost frecuency
4 GHz
3.4 GHz
Socket
LGA 1150
LGA 1155
Cores/Threads
4/8
4/4
TDP
84 W
95 W
Cache L1 (d+i)
32+32 kB
4x32+x4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
May 2014
January 2011
Mean monothread perf.
44.73k points
25.49k points
Mean multithread perf.
173.89k 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
i7-4790
i5-2400
Test#1 (Integers)
4.51k
2.72k (x0.6)
Test#2 (FP)
11.24k
7.6k (x0.68)
Test#3 (Generic, ZIP)
5.03k
3.98k (x0.79)
Test#1 (Memory)
5.02k
4.47k (x0.89)
TOTAL
25.8k
18.78k (x0.73)

Multithread

i7-4790

i5-2400
Test#1 (Integers)
15.72k
10.37k (x0.66)
Test#2 (FP)
54.99k
28.84k (x0.52)
Test#3 (Generic, ZIP)
23.87k
15.08k (x0.63)
Test#1 (Memory)
5.48k
4.67k (x0.85)
TOTAL
100.06k
58.95k (x0.59)

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
i7-4790
i5-2400
Test#1 (Integers)
14.07k
9.16k (x0.65)
Test#2 (FP)
12.63k
8.2k (x0.65)
Test#3 (Generic, ZIP)
5.35k
3.95k (x0.74)
Test#1 (Memory)
4.98k
4.17k (x0.84)
TOTAL
37.03k
25.49k (x0.69)

Multithread

i7-4790

i5-2400
Test#1 (Integers)
57.88k
34.74k (x0.6)
Test#2 (FP)
60.83k
31.07k (x0.51)
Test#3 (Generic, ZIP)
24.4k
14.86k (x0.61)
Test#1 (Memory)
6.95k
3.69k (x0.53)
TOTAL
150.07k
84.36k (x0.56)

Performance/W
i7-4790
i5-2400
Test#1 (Integers)
689 points/W
366 points/W
Test#2 (FP)
724 points/W
327 points/W
Test#3 (Generic, ZIP)
291 points/W
156 points/W
Test#1 (Memory)
83 points/W
39 points/W
TOTAL
1786 points/W
888 points/W

Performance/GHz
i7-4790
i5-2400
Test#1 (Integers)
3518 points/GHz
2695 points/GHz
Test#2 (FP)
3157 points/GHz
2411 points/GHz
Test#3 (Generic, ZIP)
1338 points/GHz
1163 points/GHz
Test#1 (Memory)
1245 points/GHz
1228 points/GHz
TOTAL
9258 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