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Core 2 Quad Q8400 vs Core i5-2300


Description
The Q8400 is based on Core architecture while the i5-2300 is based on Sandy Bridge.

Using the multithread performance as a reference, the Q8400 gets a score of 47.1 k points while the i5-2300 gets 52.9 k points.

Summarizing, the i5-2300 is 1.1 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
2.8 GHz
Boost frecuency
2.666 GHz
3.1 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+4x32 kB
Cache L2
4096 kB
4x256 kB
Cache L3
0 kB
6144 kB
Date
April 2009
May 2011
Mean monothread perf.
14.04k points
24.53k points
Mean multithread perf.
51.92k points
79.46k 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
i5-2300
Test#1 (Integers)
2.44k
2.52k (x1.03)
Test#2 (FP)
6.24k
7.01k (x1.12)
Test#3 (Generic, ZIP)
2.62k
3.77k (x1.44)
Test#1 (Memory)
1.43k
4.22k (x2.96)
TOTAL
12.73k
17.53k (x1.38)

Multithread

Q8400

i5-2300
Test#1 (Integers)
9.71k
9.46k (x0.97)
Test#2 (FP)
24.81k
26.25k (x1.06)
Test#3 (Generic, ZIP)
10.51k
14.1k (x1.34)
Test#1 (Memory)
2.03k
3.13k (x1.54)
TOTAL
47.05k
52.93k (x1.12)

Performance/W
Q8400
i5-2300
Test#1 (Integers)
102 points/W
100 points/W
Test#2 (FP)
261 points/W
276 points/W
Test#3 (Generic, ZIP)
111 points/W
148 points/W
Test#1 (Memory)
21 points/W
33 points/W
TOTAL
495 points/W
557 points/W

Performance/GHz
Q8400
i5-2300
Test#1 (Integers)
916 points/GHz
813 points/GHz
Test#2 (FP)
2340 points/GHz
2262 points/GHz
Test#3 (Generic, ZIP)
983 points/GHz
1217 points/GHz
Test#1 (Memory)
535 points/GHz
1361 points/GHz
TOTAL
4774 points/GHz
5654 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