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Core 2 Duo E7400 vs Core i7-950


Description
The E7400 is based on Core architecture while the i7-950 is based on Westmere.

Using the multithread performance as a reference, the E7400 gets a score of 25.7 k points while the i7-950 gets 76.3 k points.

Summarizing, the i7-950 is 3 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
Architecture
Base frecuency
2.8 GHz
3.066 GHz
Boost frecuency
2.8 GHz
3.333 GHz
Socket
LGA 775
LGA 1366
Cores/Threads
2/2
4/4
TDP
65 W
130 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
3072 kB
256 kB
Cache L3
0 kB
8192 kB
Date
October 2008
June 2009
Mean monothread perf.
14.31k points
19.46k points
Mean multithread perf.
25.71k points
76.29k points

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
i7-950
Test#1 (Integers)
3.19k
8.01k (x2.51)
Test#2 (FP)
7.02k
5.38k (x0.77)
Test#3 (Generic, ZIP)
2.71k
3.11k (x1.15)
Test#1 (Memory)
1.39k
2.96k (x2.13)
TOTAL
14.31k
19.46k (x1.36)

Multithread

E7400

i7-950
Test#1 (Integers)
6.02k
31.53k (x5.24)
Test#2 (FP)
13.23k
24.16k (x1.83)
Test#3 (Generic, ZIP)
5.12k
15.84k (x3.09)
Test#1 (Memory)
1.34k
4.75k (x3.54)
TOTAL
25.71k
76.29k (x2.97)

Performance/W
E7400
i7-950
Test#1 (Integers)
93 points/W
243 points/W
Test#2 (FP)
204 points/W
186 points/W
Test#3 (Generic, ZIP)
79 points/W
122 points/W
Test#1 (Memory)
21 points/W
37 points/W
TOTAL
396 points/W
587 points/W

Performance/GHz
E7400
i7-950
Test#1 (Integers)
1139 points/GHz
2403 points/GHz
Test#2 (FP)
2507 points/GHz
1614 points/GHz
Test#3 (Generic, ZIP)
969 points/GHz
934 points/GHz
Test#1 (Memory)
496 points/GHz
888 points/GHz
TOTAL
5111 points/GHz
5839 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