| | | | | | |

Core i3-6100 vs Pentium G645


Description
The i3-6100 is based on Skylake architecture while the G645 is based on Sandy Bridge.

Using the multithread performance as a reference, the i3-6100 gets a score of 91.1 k points while the G645 gets 35.4 k points.

Summarizing, the i3-6100 is 2.6 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
206a7
Core
Skylake-S
Sandy Bridge
Architecture
Base frecuency
3.7 GHz
2.9 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
2/2
2/2
TDP
51 W
65 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
4096 kB
3072 kB
Date
September 2015
September 2012
Mean monothread perf.
52.84k points
22.24k points
Mean multithread perf.
112.28k points
35.38k 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
i3-6100
G645
Test#1 (Integers)
13.76k
8.66k (x0.63)
Test#2 (FP)
19.96k
6.9k (x0.35)
Test#3 (Generic, ZIP)
5.44k
3.48k (x0.64)
Test#1 (Memory)
4.4k
3.2k (x0.73)
TOTAL
43.55k
22.24k (x0.51)

Multithread

i3-6100

G645
Test#1 (Integers)
28.99k
14.06k (x0.48)
Test#2 (FP)
45.75k
11.82k (x0.26)
Test#3 (Generic, ZIP)
12.72k
5.83k (x0.46)
Test#1 (Memory)
3.68k
3.69k (x1)
TOTAL
91.14k
35.38k (x0.39)

Performance/W
i3-6100
G645
Test#1 (Integers)
568 points/W
216 points/W
Test#2 (FP)
897 points/W
182 points/W
Test#3 (Generic, ZIP)
249 points/W
90 points/W
Test#1 (Memory)
72 points/W
57 points/W
TOTAL
1787 points/W
544 points/W

Performance/GHz
i3-6100
G645
Test#1 (Integers)
3719 points/GHz
2987 points/GHz
Test#2 (FP)
5393 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
1469 points/GHz
1199 points/GHz
Test#1 (Memory)
1189 points/GHz
1103 points/GHz
TOTAL
11770 points/GHz
7669 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