Pentium G2020 vs G645
Description
The G2020 is based on Ivy Bridge architecture while the G645 is based on Sandy Bridge.
Using the multithread performance as a reference, the G2020 gets a score of 42.4 k points while the G645 gets 35.4 k points.
Summarizing, the G2020 is 1.2 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 G2020 gets a score of 42.4 k points while the G645 gets 35.4 k points.
Summarizing, the G2020 is 1.2 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306a9
206a7
Core
Ivy Bridge
Sandy Bridge
Base frecuency
1.6 GHz
2.9 GHz
Boost frecuency
2.9 GHz
2.9 GHz
Socket
LGA 1155
LGA 1155
Cores/Threads
2/2
2/2
TDP
55 W
65 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
January 2013
September 2012
Mean monothread perf.
25.87k points
22.24k points
Mean multithread perf.
42.39k 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
G2020
G645
Test#1 (Integers)
9.9k
8.66k (x0.87)
Test#2 (FP)
9.01k
6.9k (x0.77)
Test#3 (Generic, ZIP)
3.87k
3.48k (x0.9)
Test#1 (Memory)
3.09k
3.2k (x1.04)
TOTAL
25.87k
22.24k (x0.86)
Multithread
G2020
G645
Test#1 (Integers)
18.83k
14.06k (x0.75)
Test#2 (FP)
14.15k
11.82k (x0.84)
Test#3 (Generic, ZIP)
6.61k
5.83k (x0.88)
Test#1 (Memory)
2.81k
3.69k (x1.31)
TOTAL
42.39k
35.38k (x0.83)
Performance/W
G2020
G645
Test#1 (Integers)
342 points/W
216 points/W
Test#2 (FP)
257 points/W
182 points/W
Test#3 (Generic, ZIP)
120 points/W
90 points/W
Test#1 (Memory)
51 points/W
57 points/W
TOTAL
771 points/W
544 points/W
Performance/GHz
G2020
G645
Test#1 (Integers)
3415 points/GHz
2987 points/GHz
Test#2 (FP)
3107 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
1199 points/GHz
Test#1 (Memory)
1065 points/GHz
1103 points/GHz
TOTAL
8921 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.
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