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Pentium G645 vs Celeron G3900TE


Description
The G645 is based on Sandy Bridge architecture while the G3900TE is based on Skylake.

Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the G3900TE gets 49.3 k points.

Summarizing, the G3900TE is 1.4 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
Architecture
Base frecuency
2.9 GHz
2.3 GHz
Socket
LGA 1155
LGA 1151
Cores/Threads
2/2
2/2
TDP
65 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
2048 kB
Date
September 2012
December 2015
Mean monothread perf.
22.24k points
27.33k points
Mean multithread perf.
35.38k points
49.34k 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
G3900TE
Test#1 (Integers)
8.66k
8.56k (x0.99)
Test#2 (FP)
6.9k
12.25k (x1.77)
Test#3 (Generic, ZIP)
3.48k
3.17k (x0.91)
Test#1 (Memory)
3.2k
3.35k (x1.05)
TOTAL
22.24k
27.33k (x1.23)

Multithread

G645

G3900TE
Test#1 (Integers)
14.06k
16.42k (x1.17)
Test#2 (FP)
11.82k
23.61k (x2)
Test#3 (Generic, ZIP)
5.83k
5.75k (x0.99)
Test#1 (Memory)
3.69k
3.55k (x0.96)
TOTAL
35.38k
49.34k (x1.39)

Performance/W
G645
G3900TE
Test#1 (Integers)
216 points/W
469 points/W
Test#2 (FP)
182 points/W
675 points/W
Test#3 (Generic, ZIP)
90 points/W
164 points/W
Test#1 (Memory)
57 points/W
101 points/W
TOTAL
544 points/W
1410 points/W

Performance/GHz
G645
G3900TE
Test#1 (Integers)
2987 points/GHz
3724 points/GHz
Test#2 (FP)
2380 points/GHz
5326 points/GHz
Test#3 (Generic, ZIP)
1199 points/GHz
1380 points/GHz
Test#1 (Memory)
1103 points/GHz
1455 points/GHz
TOTAL
7669 points/GHz
11885 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