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Core 2 Duo E4500 vs Pentium D 820


Description
The E4500 is based on Core architecture while the 820 is based on NetBurst.

Using the multithread performance as a reference, the E4500 gets a score of 16 k points while the 820 gets 14.1 k points.

Summarizing, the E4500 is 1.1 times faster than the 820. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fd
f44
Core
Allendale
Smithfield
Architecture
Base frecuency
2.2 GHz
2.8 GHz
Socket
LGA 775
LGA 775
Cores/Threads
2/2
2/2
TDP
65 W
130 W
Cache L1 (d+i)
2x32+2x32 kB
16+8 kB
Cache L2
2048 kB
2048 kB
Date
July 2007
May 2005
Mean monothread perf.
8.33k points
7.45k points
Mean multithread perf.
15.97k points
14.07k 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
E4500
820
Test#1 (Integers)
2.2k
1.46k (x0.66)
Test#2 (FP)
2.21k
2.6k (x1.18)
Test#3 (Generic, ZIP)
2.21k
1.26k (x0.57)
Test#1 (Memory)
1.2k
0.91k (x0.76)
TOTAL
7.81k
6.23k (x0.8)

Multithread

E4500

820
Test#1 (Integers)
4.4k
2.93k (x0.67)
Test#2 (FP)
4.42k
5.19k (x1.17)
Test#3 (Generic, ZIP)
4.45k
2.53k (x0.57)
Test#1 (Memory)
1.2k
0.94k (x0.79)
TOTAL
14.46k
11.59k (x0.8)

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
E4500
820
Test#1 (Integers)
2.53k
1.93k (x0.76)
Test#2 (FP)
2.29k
3.11k (x1.36)
Test#3 (Generic, ZIP)
2.31k
1.49k (x0.65)
Test#1 (Memory)
1.2k
0.91k (x0.76)
TOTAL
8.33k
7.45k (x0.89)

Multithread

E4500

820
Test#1 (Integers)
4.98k
3.92k (x0.79)
Test#2 (FP)
4.59k
6.23k (x1.36)
Test#3 (Generic, ZIP)
4.63k
2.99k (x0.65)
Test#1 (Memory)
1.77k
0.94k (x0.53)
TOTAL
15.97k
14.07k (x0.88)

Performance/W
E4500
820
Test#1 (Integers)
77 points/W
30 points/W
Test#2 (FP)
71 points/W
48 points/W
Test#3 (Generic, ZIP)
71 points/W
23 points/W
Test#1 (Memory)
27 points/W
7 points/W
TOTAL
246 points/W
108 points/W

Performance/GHz
E4500
820
Test#1 (Integers)
1149 points/GHz
690 points/GHz
Test#2 (FP)
1043 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
1050 points/GHz
534 points/GHz
Test#1 (Memory)
544 points/GHz
324 points/GHz
TOTAL
3786 points/GHz
2660 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