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Pentium G2020 vs Core i7-870


Description
The G2020 is based on Ivy Bridge architecture while the i7-870 is based on Nehalem.

Using the multithread performance as a reference, the G2020 gets a score of 42.4 k points while the i7-870 gets 42.5 k points.

Summarizing, the i7-870 is 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
106e5
Core
Ivy Bridge
Lynnfield
Architecture
Base frecuency
1.6 GHz
2.933 GHz
Boost frecuency
2.9 GHz
3.6 GHz
Socket
LGA 1155
LGA 1156
Cores/Threads
2/2
4/8
TDP
55 W
95 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
January 2013
September 2009
Mean monothread perf.
25.87k points
15.44k points
Mean multithread perf.
42.39k points
42.53k 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
i7-870
Test#1 (Integers)
2.94k
1.98k (x0.67)
Test#2 (FP)
8.23k
4.36k (x0.53)
Test#3 (Generic, ZIP)
3.69k
2.24k (x0.61)
Test#1 (Memory)
2.46k
2.72k (x1.1)
TOTAL
17.33k
11.3k (x0.65)

Multithread

G2020

i7-870
Test#1 (Integers)
5.54k
4.46k (x0.8)
Test#2 (FP)
15.47k
13.95k (x0.9)
Test#3 (Generic, ZIP)
7.06k
7.54k (x1.07)
Test#1 (Memory)
2.99k
1.7k (x0.57)
TOTAL
31.05k
27.65k (x0.89)

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
i7-870
Test#1 (Integers)
9.9k
5.86k (x0.59)
Test#2 (FP)
9.01k
4.53k (x0.5)
Test#3 (Generic, ZIP)
3.87k
2.36k (x0.61)
Test#1 (Memory)
3.09k
2.69k (x0.87)
TOTAL
25.87k
15.44k (x0.6)

Multithread

G2020

i7-870
Test#1 (Integers)
18.83k
17.53k (x0.93)
Test#2 (FP)
14.15k
13.65k (x0.97)
Test#3 (Generic, ZIP)
6.61k
7.93k (x1.2)
Test#1 (Memory)
2.81k
3.41k (x1.22)
TOTAL
42.39k
42.53k (x1)

Performance/W
G2020
i7-870
Test#1 (Integers)
342 points/W
185 points/W
Test#2 (FP)
257 points/W
144 points/W
Test#3 (Generic, ZIP)
120 points/W
83 points/W
Test#1 (Memory)
51 points/W
36 points/W
TOTAL
771 points/W
448 points/W

Performance/GHz
G2020
i7-870
Test#1 (Integers)
3415 points/GHz
1629 points/GHz
Test#2 (FP)
3107 points/GHz
1257 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
655 points/GHz
Test#1 (Memory)
1065 points/GHz
748 points/GHz
TOTAL
8921 points/GHz
4289 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