| | | | | | |

Core 2 Duo E6600 vs E8400


Description
Both models E6600 and E8400 are based on Core architecture.



Using the multithread performance as a reference, the E6600 gets a score of 16.1 k points while the E8400 gets 27.1 k points.

Summarizing, the E8400 is 1.7 times faster than the E6600 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6f6
1067a
Core
Conroe
Wolfdale
Architecture
Base frecuency
2.4 GHz
3 GHz
Socket
LGA 775
LGA 775
Cores/Threads
2/2
2/2
TDP
65 W
65 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
4096 kB
6144 kB
Date
July 2006
January 2008
Mean monothread perf.
9.99k points
17.28k points
Mean multithread perf.
16.12k points
27.11k 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
E6600
E8400
Test#1 (Integers)
2.38k
2.47k (x1.04)
Test#2 (FP)
2.39k
6.74k (x2.83)
Test#3 (Generic, ZIP)
2.39k
2.87k (x1.2)
Test#1 (Memory)
2.79k
4.47k (x1.6)
TOTAL
9.95k
16.55k (x1.66)

Multithread

E6600

E8400
Test#1 (Integers)
4.68k
4.64k (x0.99)
Test#2 (FP)
4.68k
12.36k (x2.64)
Test#3 (Generic, ZIP)
4.69k
4.86k (x1.04)
Test#1 (Memory)
1.8k
1.96k (x1.09)
TOTAL
15.86k
23.82k (x1.5)

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
E6600
E8400
Test#1 (Integers)
2.7k
3.3k (x1.22)
Test#2 (FP)
2.42k
7.28k (x3.01)
Test#3 (Generic, ZIP)
2.41k
2.88k (x1.19)
Test#1 (Memory)
2.46k
3.83k (x1.56)
TOTAL
9.99k
17.28k (x1.73)

Multithread

E6600

E8400
Test#1 (Integers)
5.19k
6.3k (x1.22)
Test#2 (FP)
4.55k
13.71k (x3.01)
Test#3 (Generic, ZIP)
4.6k
5.32k (x1.16)
Test#1 (Memory)
1.78k
1.78k (x1)
TOTAL
16.12k
27.11k (x1.68)

Performance/W
E6600
E8400
Test#1 (Integers)
80 points/W
97 points/W
Test#2 (FP)
70 points/W
211 points/W
Test#3 (Generic, ZIP)
71 points/W
82 points/W
Test#1 (Memory)
27 points/W
27 points/W
TOTAL
248 points/W
417 points/W

Performance/GHz
E6600
E8400
Test#1 (Integers)
1125 points/GHz
1099 points/GHz
Test#2 (FP)
1009 points/GHz
2426 points/GHz
Test#3 (Generic, ZIP)
1005 points/GHz
959 points/GHz
Test#1 (Memory)
1025 points/GHz
1278 points/GHz
TOTAL
4164 points/GHz
5762 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