Pentium G645 vs Core i5-6400
Description
The G645 is based on Sandy Bridge architecture while the i5-6400 is based on Skylake.
Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the i5-6400 gets 129.5 k points.
Summarizing, the i5-6400 is 3.7 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the i5-6400 gets 129.5 k points.
Summarizing, the i5-6400 is 3.7 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206a7
506e3
Core
Sandy Bridge
Skylake-S
Base frecuency
2.9 GHz
2.7 GHz
Boost frecuency
2.9 GHz
3.3 GHz
Socket
LGA 1155
LGA 1151
Cores/Threads
2/2
4/4
TDP
65 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
September 2012
September 2015
Mean monothread perf.
22.24k points
48.05k points
Mean multithread perf.
35.38k points
174.05k points
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
G645
i5-6400
Test#1 (Integers)
8.66k
11.56k (x1.33)
Test#2 (FP)
6.9k
16.53k (x2.4)
Test#3 (Generic, ZIP)
3.48k
4.3k (x1.24)
Test#1 (Memory)
3.2k
3.97k (x1.24)
TOTAL
22.24k
36.36k (x1.63)
Multithread
G645
i5-6400
Test#1 (Integers)
14.06k
43.01k (x3.06)
Test#2 (FP)
11.82k
64.46k (x5.46)
Test#3 (Generic, ZIP)
5.83k
16.14k (x2.77)
Test#1 (Memory)
3.69k
5.91k (x1.6)
TOTAL
35.38k
129.51k (x3.66)
Performance/W
G645
i5-6400
Test#1 (Integers)
216 points/W
662 points/W
Test#2 (FP)
182 points/W
992 points/W
Test#3 (Generic, ZIP)
90 points/W
248 points/W
Test#1 (Memory)
57 points/W
91 points/W
TOTAL
544 points/W
1992 points/W
Performance/GHz
G645
i5-6400
Test#1 (Integers)
2987 points/GHz
3503 points/GHz
Test#2 (FP)
2380 points/GHz
5009 points/GHz
Test#3 (Generic, ZIP)
1199 points/GHz
1302 points/GHz
Test#1 (Memory)
1103 points/GHz
1203 points/GHz
TOTAL
7669 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.
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