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Pentium G2020 vs Core i7-920


Description
The G2020 is based on Ivy Bridge architecture while the i7-920 is based on Nehalem Westmere.

Using the multithread performance as a reference, the G2020 gets a score of 42.4 k points while the i7-920 gets 47.2 k points.

Summarizing, the i7-920 is 1.1 times faster than the G2020 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
106a5
Core
Ivy Bridge
Bloomfield
Architecture
Ivy Bridge
Base frecuency
1.6 GHz
2.667 GHz
Boost frecuency
2.9 GHz
2.993 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
2/2
4/8
TDP
55 W
130 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
3072 kB
8192 kB
Date
January 2013
November 2008
Mean monothread perf.
25.87k points
16.33k points
Mean multithread perf.
42.39k points
47.2k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
G2020
i7-920
Test#1 (Integers)
2.94k
1.97k (x0.67)
Test#2 (FP)
8.23k
4.43k (x0.54)
Test#3 (Generic, ZIP)
3.69k
2.75k (x0.75)
Test#1 (Memory)
2.46k
2.53k (x1.03)
TOTAL
17.33k
11.68k (x0.67)

Multithread

G2020

i7-920
Test#1 (Integers)
5.54k
7.71k (x1.39)
Test#2 (FP)
15.47k
18.81k (x1.22)
Test#3 (Generic, ZIP)
7.06k
13.76k (x1.95)
Test#1 (Memory)
2.99k
5.07k (x1.7)
TOTAL
31.05k
45.34k (x1.46)

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
i7-920
Test#1 (Integers)
9.9k
6.12k (x0.62)
Test#2 (FP)
9.01k
4.76k (x0.53)
Test#3 (Generic, ZIP)
3.87k
2.78k (x0.72)
Test#1 (Memory)
3.09k
2.67k (x0.86)
TOTAL
25.87k
16.33k (x0.63)

Multithread

G2020

i7-920
Test#1 (Integers)
18.83k
19.26k (x1.02)
Test#2 (FP)
14.15k
14.96k (x1.06)
Test#3 (Generic, ZIP)
6.61k
8.05k (x1.22)
Test#1 (Memory)
2.81k
4.92k (x1.75)
TOTAL
42.39k
47.2k (x1.11)

Performance/W
G2020
i7-920
Test#1 (Integers)
342 points/W
148 points/W
Test#2 (FP)
257 points/W
115 points/W
Test#3 (Generic, ZIP)
120 points/W
62 points/W
Test#1 (Memory)
51 points/W
38 points/W
TOTAL
771 points/W
363 points/W

Performance/GHz
G2020
i7-920
Test#1 (Integers)
3415 points/GHz
2044 points/GHz
Test#2 (FP)
3107 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
930 points/GHz
Test#1 (Memory)
1065 points/GHz
891 points/GHz
TOTAL
8921 points/GHz
5457 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