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Core 2 Quad Q9550 vs Core i5-6400


Description
The Q9550 is based on Core architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the Q9550 gets a score of 49 k points while the i5-6400 gets 129.5 k points.

Summarizing, the i5-6400 is 2.6 times faster than the Q9550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
506e3
Core
Yorkfield
Skylake-S
Architecture
Base frecuency
2.833 GHz
2.7 GHz
Boost frecuency
2.833 GHz
3.3 GHz
Socket
LGA 775
LGA 1151
Cores/Threads
4/4
4/4
TDP
95 W
65 W
Cache L1 (d+i)
128+128 kB
4x32+4x32 kB
Cache L2
12288 kB
4x256 kB
Cache L3
0 kB
6144 kB
Date
March 2008
September 2015
Mean monothread perf.
17.29k points
48.05k points
Mean multithread perf.
48.98k points
174.05k 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
Q9550
i5-6400
Test#1 (Integers)
2.6k
3.2k (x1.23)
Test#2 (FP)
6.67k
12.81k (x1.92)
Test#3 (Generic, ZIP)
2.72k
4.18k (x1.54)
Test#1 (Memory)
4.43k
4.3k (x0.97)
TOTAL
16.42k
24.49k (x1.49)

Multithread

Q9550

i5-6400
Test#1 (Integers)
9.92k
11.45k (x1.15)
Test#2 (FP)
25.37k
46.67k (x1.84)
Test#3 (Generic, ZIP)
10.31k
14.69k (x1.42)
Test#1 (Memory)
3.37k
5.92k (x1.76)
TOTAL
48.96k
78.73k (x1.61)

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
Q9550
i5-6400
Test#1 (Integers)
3.28k
11.56k (x3.52)
Test#2 (FP)
7.28k
16.53k (x2.27)
Test#3 (Generic, ZIP)
2.83k
4.3k (x1.52)
Test#1 (Memory)
3.9k
3.97k (x1.02)
TOTAL
17.29k
36.36k (x2.1)

Multithread

Q9550

i5-6400
Test#1 (Integers)
11.72k
43.01k (x3.67)
Test#2 (FP)
24.91k
64.46k (x2.59)
Test#3 (Generic, ZIP)
9.77k
16.14k (x1.65)
Test#1 (Memory)
2.57k
5.91k (x2.3)
TOTAL
48.98k
129.51k (x2.64)

Performance/W
Q9550
i5-6400
Test#1 (Integers)
123 points/W
662 points/W
Test#2 (FP)
262 points/W
992 points/W
Test#3 (Generic, ZIP)
103 points/W
248 points/W
Test#1 (Memory)
27 points/W
91 points/W
TOTAL
516 points/W
1992 points/W

Performance/GHz
Q9550
i5-6400
Test#1 (Integers)
1159 points/GHz
3503 points/GHz
Test#2 (FP)
2568 points/GHz
5009 points/GHz
Test#3 (Generic, ZIP)
1001 points/GHz
1302 points/GHz
Test#1 (Memory)
1375 points/GHz
1203 points/GHz
TOTAL
6103 points/GHz
11018 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