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Core i5-6500 vs Core 2 Duo P8400


Description
The i5-6500 is based on Skylake architecture while the P8400 is based on Core.

Using the multithread performance as a reference, the i5-6500 gets a score of 85 k points while the P8400 gets 18.8 k points.

Summarizing, the i5-6500 is 4.5 times faster than the P8400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
10676
Core
Skylake-S
Peryn-3M
Architecture
Base frecuency
3.2 GHz
2.267 GHz
Boost frecuency
3.6 GHz
2.267 GHz
Socket
LGA 1151
Socket P
Cores/Threads
4/4
2/2
TDP
65 W
25 W
Cache L1 (d+i)
4x32+4x32 kB
2x32 kB
Cache L2
4x256 kB
3072 kB
Cache L3
6144 kB
0 kB
Date
September 2015
July 2008
Mean monothread perf.
53.7k points
11.38k points
Mean multithread perf.
179.44k points
21.02k 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
i5-6500
P8400
Test#1 (Integers)
3.46k
1.78k (x0.51)
Test#2 (FP)
14.61k
4.95k (x0.34)
Test#3 (Generic, ZIP)
4.66k
2.08k (x0.45)
Test#1 (Memory)
6.99k
1.44k (x0.21)
TOTAL
29.71k
10.24k (x0.34)

Multithread

i5-6500

P8400
Test#1 (Integers)
12.52k
3.53k (x0.28)
Test#2 (FP)
51.13k
9.75k (x0.19)
Test#3 (Generic, ZIP)
17.41k
4.07k (x0.23)
Test#1 (Memory)
3.9k
1.44k (x0.37)
TOTAL
84.96k
18.79k (x0.22)

Performance/W
i5-6500
P8400
Test#1 (Integers)
193 points/W
141 points/W
Test#2 (FP)
787 points/W
390 points/W
Test#3 (Generic, ZIP)
268 points/W
163 points/W
Test#1 (Memory)
60 points/W
58 points/W
TOTAL
1307 points/W
751 points/W

Performance/GHz
i5-6500
P8400
Test#1 (Integers)
960 points/GHz
785 points/GHz
Test#2 (FP)
4057 points/GHz
2183 points/GHz
Test#3 (Generic, ZIP)
1294 points/GHz
916 points/GHz
Test#1 (Memory)
1942 points/GHz
634 points/GHz
TOTAL
8253 points/GHz
4519 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