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Core i5-2400 vs Core 2 Quad Q8400


Description
The i5-2400 is based on Sandy Bridge architecture while the Q8400 is based on Core.

Using the multithread performance as a reference, the i5-2400 gets a score of 58.9 k points while the Q8400 gets 47.1 k points.

Summarizing, the i5-2400 is 1.3 times faster than the Q8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
1067a
Core
Sandy Bridge
Yorkfield
Architecture
Base frecuency
3.1 GHz
2.666 GHz
Boost frecuency
3.4 GHz
2.666 GHz
Socket
LGA 1155
LGA 775
Cores/Threads
4/4
4/4
TDP
95 W
95 W
Cache L1 (d+i)
4x32+x4x32 kB
128+128 kB
Cache L2
4x256 kB
4096 kB
Cache L3
6144 kB
0 kB
Date
January 2011
April 2009
Mean monothread perf.
25.49k points
14.04k points
Mean multithread perf.
84.36k points
51.92k 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
i5-2400
Q8400
Test#1 (Integers)
2.72k
2.44k (x0.9)
Test#2 (FP)
7.6k
6.24k (x0.82)
Test#3 (Generic, ZIP)
3.98k
2.62k (x0.66)
Test#1 (Memory)
4.47k
1.43k (x0.32)
TOTAL
18.78k
12.73k (x0.68)

Multithread

i5-2400

Q8400
Test#1 (Integers)
10.37k
9.71k (x0.94)
Test#2 (FP)
28.84k
24.81k (x0.86)
Test#3 (Generic, ZIP)
15.08k
10.51k (x0.7)
Test#1 (Memory)
4.67k
2.03k (x0.43)
TOTAL
58.95k
47.05k (x0.8)

Performance/W
i5-2400
Q8400
Test#1 (Integers)
109 points/W
102 points/W
Test#2 (FP)
304 points/W
261 points/W
Test#3 (Generic, ZIP)
159 points/W
111 points/W
Test#1 (Memory)
49 points/W
21 points/W
TOTAL
620 points/W
495 points/W

Performance/GHz
i5-2400
Q8400
Test#1 (Integers)
801 points/GHz
916 points/GHz
Test#2 (FP)
2236 points/GHz
2340 points/GHz
Test#3 (Generic, ZIP)
1171 points/GHz
983 points/GHz
Test#1 (Memory)
1316 points/GHz
535 points/GHz
TOTAL
5523 points/GHz
4774 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