| | | | | | |

Core 2 Quad Q8400 vs Core i5-2400


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

Using the multithread performance as a reference, the Q8400 gets a score of 47.1 k points while the i5-2400 gets 58.9 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
1067a
206a7
Core
Yorkfield
Sandy Bridge
Architecture
Base frecuency
2.666 GHz
3.1 GHz
Boost frecuency
2.666 GHz
3.4 GHz
Socket
LGA 775
LGA 1155
Cores/Threads
4/4
4/4
TDP
95 W
95 W
Cache L1 (d+i)
128+128 kB
4x32+x4x32 kB
Cache L2
4096 kB
4x256 kB
Cache L3
0 kB
6144 kB
Date
April 2009
January 2011
Mean monothread perf.
14.04k points
25.49k points
Mean multithread perf.
51.92k points
84.36k 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
i5-2400
Test#1 (Integers)
2.44k
2.72k (x1.12)
Test#2 (FP)
6.24k
7.6k (x1.22)
Test#3 (Generic, ZIP)
2.62k
3.98k (x1.52)
Test#1 (Memory)
1.43k
4.47k (x3.13)
TOTAL
12.73k
18.78k (x1.48)

Multithread

Q8400

i5-2400
Test#1 (Integers)
9.71k
10.37k (x1.07)
Test#2 (FP)
24.81k
28.84k (x1.16)
Test#3 (Generic, ZIP)
10.51k
15.08k (x1.43)
Test#1 (Memory)
2.03k
4.67k (x2.3)
TOTAL
47.05k
58.95k (x1.25)

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

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