Pentium G2020 vs Xeon E5645
Description
The G2020 is based on Ivy Bridge architecture while the E5645 is based on Westmere.
Using the multithread performance as a reference, the G2020 gets a score of 42.4 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.8 times faster than the G2020 . 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 E5645 gets 77 k points.
Summarizing, the E5645 is 1.8 times faster than the G2020 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306a9
206c2
Core
Ivy Bridge
Westmere-EP
Base frecuency
1.6 GHz
2.4 GHz
Boost frecuency
2.9 GHz
2.8 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
2/2
6 /6
TDP
55 W
80 W
Cache L1 (d+i)
32+32 kB
64 kB
Cache L2
256 kB
256 kB
Cache L3
3072 kB
12288 kB
Date
January 2013
March 2010
Mean monothread perf.
25.87k points
15.64k points
Mean multithread perf.
42.39k points
76.96k 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
E5645
Test#1 (Integers)
2.94k
1.78k (x0.6)
Test#2 (FP)
8.23k
3.91k (x0.47)
Test#3 (Generic, ZIP)
3.69k
2.52k (x0.68)
Test#1 (Memory)
2.46k
2.42k (x0.98)
TOTAL
17.33k
10.64k (x0.61)
Multithread
G2020
E5645
Test#1 (Integers)
5.54k
9.67k (x1.75)
Test#2 (FP)
15.47k
22.92k (x1.48)
Test#3 (Generic, ZIP)
7.06k
14.31k (x2.03)
Test#1 (Memory)
2.99k
3.81k (x1.27)
TOTAL
31.05k
50.7k (x1.63)
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
E5645
Test#1 (Integers)
9.9k
6.47k (x0.65)
Test#2 (FP)
9.01k
4.4k (x0.49)
Test#3 (Generic, ZIP)
3.87k
2.43k (x0.63)
Test#1 (Memory)
3.09k
2.33k (x0.76)
TOTAL
25.87k
15.64k (x0.6)
Multithread
G2020
E5645
Test#1 (Integers)
18.83k
34.43k (x1.83)
Test#2 (FP)
14.15k
24.23k (x1.71)
Test#3 (Generic, ZIP)
6.61k
14.48k (x2.19)
Test#1 (Memory)
2.81k
3.81k (x1.36)
TOTAL
42.39k
76.96k (x1.82)
Performance/W
G2020
E5645
Test#1 (Integers)
342 points/W
430 points/W
Test#2 (FP)
257 points/W
303 points/W
Test#3 (Generic, ZIP)
120 points/W
181 points/W
Test#1 (Memory)
51 points/W
48 points/W
TOTAL
771 points/W
962 points/W
Performance/GHz
G2020
E5645
Test#1 (Integers)
3415 points/GHz
2311 points/GHz
Test#2 (FP)
3107 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
867 points/GHz
Test#1 (Memory)
1065 points/GHz
833 points/GHz
TOTAL
8921 points/GHz
5584 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