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Core 2 Duo E8400 vs Pentium Dual-Core E5400


Description
Both models E8400 and E5400 are based on Core architecture.



Using the multithread performance as a reference, the E8400 gets a score of 27.1 k points while the E5400 gets 26.8 k points.

Summarizing, the E8400 is 1 times faster than the E5400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
1067a
Core
Wolfdale
Wolfdale
Architecture
Base frecuency
3 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
6144 kB
2048 kB
Date
January 2008
January 2009
Mean monothread perf.
17.28k points
14.01k points
Mean multithread perf.
27.11k 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
E8400
E5400
Test#1 (Integers)
2.47k
2.47k (x1)
Test#2 (FP)
6.74k
6.37k (x0.94)
Test#3 (Generic, ZIP)
2.87k
2.66k (x0.93)
Test#1 (Memory)
4.47k
1.24k (x0.28)
TOTAL
16.55k
12.75k (x0.77)

Multithread

E8400

E5400
Test#1 (Integers)
4.64k
4.95k (x1.07)
Test#2 (FP)
12.36k
12.7k (x1.03)
Test#3 (Generic, ZIP)
4.86k
5.34k (x1.1)
Test#1 (Memory)
1.96k
1.21k (x0.62)
TOTAL
23.82k
24.2k (x1.02)

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
E8400
E5400
Test#1 (Integers)
3.3k
3.09k (x0.94)
Test#2 (FP)
7.28k
6.94k (x0.95)
Test#3 (Generic, ZIP)
2.88k
2.77k (x0.96)
Test#1 (Memory)
3.83k
1.22k (x0.32)
TOTAL
17.28k
14.01k (x0.81)

Multithread

E8400

E5400
Test#1 (Integers)
6.3k
6.18k (x0.98)
Test#2 (FP)
13.71k
13.82k (x1.01)
Test#3 (Generic, ZIP)
5.32k
5.57k (x1.05)
Test#1 (Memory)
1.78k
1.21k (x0.68)
TOTAL
27.11k
26.78k (x0.99)

Performance/W
E8400
E5400
Test#1 (Integers)
97 points/W
95 points/W
Test#2 (FP)
211 points/W
213 points/W
Test#3 (Generic, ZIP)
82 points/W
86 points/W
Test#1 (Memory)
27 points/W
19 points/W
TOTAL
417 points/W
412 points/W

Performance/GHz
E8400
E5400
Test#1 (Integers)
1099 points/GHz
1143 points/GHz
Test#2 (FP)
2426 points/GHz
2570 points/GHz
Test#3 (Generic, ZIP)
959 points/GHz
1024 points/GHz
Test#1 (Memory)
1278 points/GHz
450 points/GHz
TOTAL
5762 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