Core 2 Quad Q8400 vs Core i7-5500U
Description
The Q8400 is based on Core architecture while the i7-5500U is based on Broadwell.
Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the i7-5500U gets 63.7 k points.
Summarizing, the i7-5500U is 1.2 times faster than the Q8400 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the i7-5500U gets 63.7 k points.
Summarizing, the i7-5500U is 1.2 times faster than the Q8400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
1067a
306d4
Core
Yorkfield
Broadwell-U
Base frecuency
2.666 GHz
2.4 GHz
Boost frecuency
2.666 GHz
3 GHz
Socket
LGA 775
BGA 1168
Cores/Threads
4/4
2 /4
TDP
95 W
15 W
Cache L1 (d+i)
128+128 kB
2x32+2x32 kB
Cache L2
4096 kB
256 kB
Cache L3
0 kB
4096 kB
Date
April 2009
March 2015
Mean monothread perf.
14.04k points
40.41k points
Mean multithread perf.
51.92k points
82.89k 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
i7-5500U
Test#1 (Integers)
2.44k
3.31k (x1.36)
Test#2 (FP)
6.24k
11.61k (x1.86)
Test#3 (Generic, ZIP)
2.62k
3.94k (x1.5)
Test#1 (Memory)
1.43k
3.24k (x2.27)
TOTAL
12.73k
22.1k (x1.74)
Multithread
Q8400
i7-5500U
Test#1 (Integers)
9.71k
5.97k (x0.61)
Test#2 (FP)
24.81k
25.54k (x1.03)
Test#3 (Generic, ZIP)
10.51k
8.8k (x0.84)
Test#1 (Memory)
2.03k
3.36k (x1.65)
TOTAL
47.05k
43.67k (x0.93)
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
i7-5500U
Test#1 (Integers)
3.08k
10.59k (x3.43)
Test#2 (FP)
6.8k
13.72k (x2.02)
Test#3 (Generic, ZIP)
2.73k
4.22k (x1.55)
Test#1 (Memory)
1.42k
3.64k (x2.57)
TOTAL
14.04k
32.16k (x2.29)
Multithread
Q8400
i7-5500U
Test#1 (Integers)
12.25k
20.8k (x1.7)
Test#2 (FP)
26.84k
30.44k (x1.13)
Test#3 (Generic, ZIP)
10.82k
9.1k (x0.84)
Test#1 (Memory)
2.02k
3.35k (x1.66)
TOTAL
51.92k
63.69k (x1.23)
Performance/W
Q8400
i7-5500U
Test#1 (Integers)
129 points/W
1387 points/W
Test#2 (FP)
283 points/W
2029 points/W
Test#3 (Generic, ZIP)
114 points/W
607 points/W
Test#1 (Memory)
21 points/W
223 points/W
TOTAL
547 points/W
4246 points/W
Performance/GHz
Q8400
i7-5500U
Test#1 (Integers)
1157 points/GHz
3529 points/GHz
Test#2 (FP)
2551 points/GHz
4572 points/GHz
Test#3 (Generic, ZIP)
1025 points/GHz
1408 points/GHz
Test#1 (Memory)
532 points/GHz
1213 points/GHz
TOTAL
5265 points/GHz
10721 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4