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Core 2 Duo E6550 vs Pentium Dual-Core E5400


Description
Both models E6550 and E5400 are based on Core architecture.



Using the multithread performance as a reference, the E6550 gets a score of 16.4 k points while the E5400 gets 26.8 k points.

Summarizing, the E5400 is 1.6 times faster than the E6550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fb
1067a
Core
Conroe
Wolfdale
Architecture
Base frecuency
2.333 GHz
2.7 GHz
Socket
LGA 775
LGA 775
Cores/Threads
2/2
2/2
TDP
65 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
4096 kB
2048 kB
Date
July 2007
January 2009
Mean monothread perf.
10.31k points
14.01k points
Mean multithread perf.
16.38k points
26.78k 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
E5400
Test#1 (Integers)
2.34k
2.47k (x1.06)
Test#2 (FP)
2.34k
6.37k (x2.72)
Test#3 (Generic, ZIP)
2.35k
2.66k (x1.13)
Test#1 (Memory)
2.72k
1.24k (x0.46)
TOTAL
9.75k
12.75k (x1.31)

Multithread

E6550

E5400
Test#1 (Integers)
4.67k
4.95k (x1.06)
Test#2 (FP)
4.68k
12.7k (x2.71)
Test#3 (Generic, ZIP)
4.71k
5.34k (x1.14)
Test#1 (Memory)
1.26k
1.21k (x0.96)
TOTAL
15.32k
24.2k (x1.58)

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
E5400
Test#1 (Integers)
2.7k
3.09k (x1.14)
Test#2 (FP)
2.43k
6.94k (x2.86)
Test#3 (Generic, ZIP)
2.44k
2.77k (x1.13)
Test#1 (Memory)
2.74k
1.22k (x0.44)
TOTAL
10.31k
14.01k (x1.36)

Multithread

E6550

E5400
Test#1 (Integers)
5.39k
6.18k (x1.15)
Test#2 (FP)
4.85k
13.82k (x2.85)
Test#3 (Generic, ZIP)
4.89k
5.57k (x1.14)
Test#1 (Memory)
1.26k
1.21k (x0.96)
TOTAL
16.38k
26.78k (x1.63)

Performance/W
E6550
E5400
Test#1 (Integers)
83 points/W
95 points/W
Test#2 (FP)
75 points/W
213 points/W
Test#3 (Generic, ZIP)
75 points/W
86 points/W
Test#1 (Memory)
19 points/W
19 points/W
TOTAL
252 points/W
412 points/W

Performance/GHz
E6550
E5400
Test#1 (Integers)
1156 points/GHz
1143 points/GHz
Test#2 (FP)
1041 points/GHz
2570 points/GHz
Test#3 (Generic, ZIP)
1047 points/GHz
1024 points/GHz
Test#1 (Memory)
1173 points/GHz
450 points/GHz
TOTAL
4417 points/GHz
5187 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