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Core 2 Duo E6550 vs E4400


Description
Both models E6550 and E4400 are based on Core architecture.



Using the multithread performance as a reference, the E6550 gets a score of 16.4 k points while the E4400 gets 14.2 k points.

Summarizing, the E6550 is 1.2 times faster than the E4400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fb
6fd
Core
Conroe
Allendale
Architecture
Base frecuency
2.333 GHz
2 GHz
Socket
LGA 775
LGA 775
Cores/Threads
2/2
2/2
TDP
65 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
4096 kB
2048 kB
Date
July 2007
July 2007
Mean monothread perf.
10.31k points
7.67k points
Mean multithread perf.
16.38k points
14.17k 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
E6550
E4400
Test#1 (Integers)
2.34k
2.01k (x0.86)
Test#2 (FP)
2.34k
2.01k (x0.86)
Test#3 (Generic, ZIP)
2.35k
2.02k (x0.86)
Test#1 (Memory)
2.72k
1.19k (x0.44)
TOTAL
9.75k
7.24k (x0.74)

Multithread

E6550

E4400
Test#1 (Integers)
4.67k
4k (x0.86)
Test#2 (FP)
4.68k
4.02k (x0.86)
Test#3 (Generic, ZIP)
4.71k
4.04k (x0.86)
Test#1 (Memory)
1.26k
1.2k (x0.95)
TOTAL
15.32k
13.26k (x0.87)

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
E6550
E4400
Test#1 (Integers)
2.7k
2.3k (x0.85)
Test#2 (FP)
2.43k
2.09k (x0.86)
Test#3 (Generic, ZIP)
2.44k
2.1k (x0.86)
Test#1 (Memory)
2.74k
1.18k (x0.43)
TOTAL
10.31k
7.67k (x0.74)

Multithread

E6550

E4400
Test#1 (Integers)
5.39k
4.61k (x0.85)
Test#2 (FP)
4.85k
4.17k (x0.86)
Test#3 (Generic, ZIP)
4.89k
4.2k (x0.86)
Test#1 (Memory)
1.26k
1.2k (x0.95)
TOTAL
16.38k
14.17k (x0.87)

Performance/W
E6550
E4400
Test#1 (Integers)
83 points/W
71 points/W
Test#2 (FP)
75 points/W
64 points/W
Test#3 (Generic, ZIP)
75 points/W
65 points/W
Test#1 (Memory)
19 points/W
18 points/W
TOTAL
252 points/W
218 points/W

Performance/GHz
E6550
E4400
Test#1 (Integers)
1156 points/GHz
1151 points/GHz
Test#2 (FP)
1041 points/GHz
1044 points/GHz
Test#3 (Generic, ZIP)
1047 points/GHz
1048 points/GHz
Test#1 (Memory)
1173 points/GHz
591 points/GHz
TOTAL
4417 points/GHz
3834 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