Core i7-4790 vs Core 2 Duo E8400
Description
The i7-4790 is based on Haswell architecture while the E8400 is based on Core.
Using the multithread performance as a reference, the i7-4790 gets a score of 138.4 k points while the E8400 gets 27.1 k points.
Summarizing, the i7-4790 is 5.1 times faster than the E8400 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-4790 gets a score of 138.4 k points while the E8400 gets 27.1 k points.
Summarizing, the i7-4790 is 5.1 times faster than the E8400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306c3
1067a
Core
Haswell
Wolfdale
Base frecuency
3.6 GHz
3 GHz
Boost frecuency
4 GHz
3 GHz
Socket
LGA 1150
LGA 775
Cores/Threads
4/8
2/2
TDP
84 W
65 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
6144 kB
Cache L3
8192 kB
0 kB
Date
May 2014
January 2008
Mean monothread perf.
44.73k points
17.28k points
Mean multithread perf.
173.89k points
27.11k 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
E8400
Test#1 (Integers)
4.51k
2.47k (x0.55)
Test#2 (FP)
11.24k
6.74k (x0.6)
Test#3 (Generic, ZIP)
5.03k
2.87k (x0.57)
Test#1 (Memory)
5.02k
4.47k (x0.89)
TOTAL
25.8k
16.55k (x0.64)
Multithread
i7-4790
E8400
Test#1 (Integers)
15.72k
4.64k (x0.3)
Test#2 (FP)
54.99k
12.36k (x0.22)
Test#3 (Generic, ZIP)
23.87k
4.86k (x0.2)
Test#1 (Memory)
5.48k
1.96k (x0.36)
TOTAL
100.06k
23.82k (x0.24)
SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-4790
E8400
Test#1 (Integers)
13.52k
3.3k (x0.24)
Test#2 (FP)
11.94k
7.28k (x0.61)
Test#3 (Generic, ZIP)
4.96k
2.88k (x0.58)
Test#1 (Memory)
4.84k
3.83k (x0.79)
TOTAL
35.25k
17.28k (x0.49)
Multithread
i7-4790
E8400
Test#1 (Integers)
54.7k
6.3k (x0.12)
Test#2 (FP)
52.41k
13.71k (x0.26)
Test#3 (Generic, ZIP)
24.5k
5.32k (x0.22)
Test#1 (Memory)
6.77k
1.78k (x0.26)
TOTAL
138.37k
27.11k (x0.2)
Performance/W
i7-4790
E8400
Test#1 (Integers)
651 points/W
97 points/W
Test#2 (FP)
624 points/W
211 points/W
Test#3 (Generic, ZIP)
292 points/W
82 points/W
Test#1 (Memory)
81 points/W
27 points/W
TOTAL
1647 points/W
417 points/W
Performance/GHz
i7-4790
E8400
Test#1 (Integers)
3380 points/GHz
1099 points/GHz
Test#2 (FP)
2986 points/GHz
2426 points/GHz
Test#3 (Generic, ZIP)
1239 points/GHz
959 points/GHz
Test#1 (Memory)
1209 points/GHz
1278 points/GHz
TOTAL
8813 points/GHz
5762 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.
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.
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