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Core 2 Quad Q8400 vs Core 2 Duo E4500


Description
Both models Q8400 and E4500 are based on Core architecture.



Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the E4500 gets 16 k points.

Summarizing, the Q8400 is 3.2 times faster than the E4500 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
6fd
Core
Yorkfield
Allendale
Architecture
Base frecuency
2.666 GHz
2.2 GHz
Socket
LGA 775
LGA 775
Cores/Threads
4/4
2/2
TDP
95 W
65 W
Cache L1 (d+i)
128+128 kB
2x32+2x32 kB
Cache L2
4096 kB
2048 kB
Date
April 2009
July 2007
Mean monothread perf.
14.04k points
8.33k points
Mean multithread perf.
51.92k points
15.97k 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
Q8400
E4500
Test#1 (Integers)
2.44k
2.2k (x0.9)
Test#2 (FP)
6.24k
2.21k (x0.35)
Test#3 (Generic, ZIP)
2.62k
2.21k (x0.84)
Test#1 (Memory)
1.43k
1.2k (x0.84)
TOTAL
12.73k
7.81k (x0.61)

Multithread

Q8400

E4500
Test#1 (Integers)
9.71k
4.4k (x0.45)
Test#2 (FP)
24.81k
4.42k (x0.18)
Test#3 (Generic, ZIP)
10.51k
4.45k (x0.42)
Test#1 (Memory)
2.03k
1.2k (x0.59)
TOTAL
47.05k
14.46k (x0.31)

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
Q8400
E4500
Test#1 (Integers)
3.08k
2.53k (x0.82)
Test#2 (FP)
6.8k
2.29k (x0.34)
Test#3 (Generic, ZIP)
2.73k
2.31k (x0.85)
Test#1 (Memory)
1.42k
1.2k (x0.84)
TOTAL
14.04k
8.33k (x0.59)

Multithread

Q8400

E4500
Test#1 (Integers)
12.25k
4.98k (x0.41)
Test#2 (FP)
26.84k
4.59k (x0.17)
Test#3 (Generic, ZIP)
10.82k
4.63k (x0.43)
Test#1 (Memory)
2.02k
1.77k (x0.88)
TOTAL
51.92k
15.97k (x0.31)

Performance/W
Q8400
E4500
Test#1 (Integers)
129 points/W
77 points/W
Test#2 (FP)
283 points/W
71 points/W
Test#3 (Generic, ZIP)
114 points/W
71 points/W
Test#1 (Memory)
21 points/W
27 points/W
TOTAL
547 points/W
246 points/W

Performance/GHz
Q8400
E4500
Test#1 (Integers)
1157 points/GHz
1149 points/GHz
Test#2 (FP)
2551 points/GHz
1043 points/GHz
Test#3 (Generic, ZIP)
1025 points/GHz
1050 points/GHz
Test#1 (Memory)
532 points/GHz
544 points/GHz
TOTAL
5265 points/GHz
3786 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