Core 2 Duo E7400 vs Core i7-920
Description
The E7400 is based on Core architecture while the i7-920 is based on Nehalem Westmere.
Using the multithread performance as a reference, the E7400 gets a score of 25.7 k points while the i7-920 gets 47.2 k points.
Summarizing, the i7-920 is 1.8 times faster than the E7400 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the E7400 gets a score of 25.7 k points while the i7-920 gets 47.2 k points.
Summarizing, the i7-920 is 1.8 times faster than the E7400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
1067a
106a5
Core
Wolfdale
Bloomfield
Base frecuency
2.8 GHz
2.667 GHz
Boost frecuency
2.8 GHz
2.993 GHz
Socket
LGA 775
LGA 1366
Cores/Threads
2/2
4/8
TDP
65 W
130 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
3072 kB
256 kB
Cache L3
0 kB
8192 kB
Date
October 2008
November 2008
Mean monothread perf.
14.31k points
16.33k points
Mean multithread perf.
25.71k points
47.2k 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
E7400
i7-920
Test#1 (Integers)
2.54k
1.97k (x0.78)
Test#2 (FP)
6.56k
4.43k (x0.68)
Test#3 (Generic, ZIP)
2.73k
2.75k (x1.01)
Test#1 (Memory)
1.83k
2.53k (x1.38)
TOTAL
13.66k
11.68k (x0.86)
Multithread
E7400
i7-920
Test#1 (Integers)
5.08k
7.71k (x1.52)
Test#2 (FP)
13.07k
18.81k (x1.44)
Test#3 (Generic, ZIP)
5.52k
13.76k (x2.49)
Test#1 (Memory)
1.62k
5.07k (x3.12)
TOTAL
25.29k
45.34k (x1.79)
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
E7400
i7-920
Test#1 (Integers)
3.19k
6.12k (x1.92)
Test#2 (FP)
7.02k
4.76k (x0.68)
Test#3 (Generic, ZIP)
2.71k
2.78k (x1.03)
Test#1 (Memory)
1.39k
2.67k (x1.92)
TOTAL
14.31k
16.33k (x1.14)
Multithread
E7400
i7-920
Test#1 (Integers)
6.02k
19.26k (x3.2)
Test#2 (FP)
13.23k
14.96k (x1.13)
Test#3 (Generic, ZIP)
5.12k
8.05k (x1.57)
Test#1 (Memory)
1.34k
4.92k (x3.67)
TOTAL
25.71k
47.2k (x1.84)
Performance/W
E7400
i7-920
Test#1 (Integers)
93 points/W
148 points/W
Test#2 (FP)
204 points/W
115 points/W
Test#3 (Generic, ZIP)
79 points/W
62 points/W
Test#1 (Memory)
21 points/W
38 points/W
TOTAL
396 points/W
363 points/W
Performance/GHz
E7400
i7-920
Test#1 (Integers)
1139 points/GHz
2044 points/GHz
Test#2 (FP)
2507 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
969 points/GHz
930 points/GHz
Test#1 (Memory)
496 points/GHz
891 points/GHz
TOTAL
5111 points/GHz
5457 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