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Pentium G2020 vs Core i7-640LM


Description
The G2020 is based on Ivy Bridge architecture while the i7-640LM is based on Westmere.

Using the multithread performance as a reference, the G2020 gets a score of 42.4 k points while the i7-640LM gets 31.7 k points.

Summarizing, the G2020 is 1.3 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
20655
Core
Ivy Bridge
Calpella
Architecture
Base frecuency
1.6 GHz
2.133 GHz
Boost frecuency
2.9 GHz
2.667 GHz
Socket
LGA 1155
BGA1288
Cores/Threads
2/2
2/4
TDP
55 W
25 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
3072 kB
4096 kB
Date
January 2013
January 2010
Mean monothread perf.
25.87k points
16.35k points
Mean multithread perf.
42.39k points
31.74k 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
i7-640LM
Test#1 (Integers)
9.9k
7.01k (x0.71)
Test#2 (FP)
9.01k
4.58k (x0.51)
Test#3 (Generic, ZIP)
3.87k
2.73k (x0.71)
Test#1 (Memory)
3.09k
2.03k (x0.66)
TOTAL
25.87k
16.35k (x0.63)

Multithread

G2020

i7-640LM
Test#1 (Integers)
18.83k
12.93k (x0.69)
Test#2 (FP)
14.15k
10.21k (x0.72)
Test#3 (Generic, ZIP)
6.61k
6.22k (x0.94)
Test#1 (Memory)
2.81k
2.37k (x0.84)
TOTAL
42.39k
31.74k (x0.75)

Performance/W
G2020
i7-640LM
Test#1 (Integers)
342 points/W
517 points/W
Test#2 (FP)
257 points/W
409 points/W
Test#3 (Generic, ZIP)
120 points/W
249 points/W
Test#1 (Memory)
51 points/W
95 points/W
TOTAL
771 points/W
1269 points/W

Performance/GHz
G2020
i7-640LM
Test#1 (Integers)
3415 points/GHz
2627 points/GHz
Test#2 (FP)
3107 points/GHz
1718 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
1024 points/GHz
Test#1 (Memory)
1065 points/GHz
762 points/GHz
TOTAL
8921 points/GHz
6130 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