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Pentium D 820 vs Core Duo T2450


Description
The 820 is based on NetBurst architecture while the T2450 is based on Mobile.

Using the multithread performance as a reference, the 820 gets a score of 14.1 k points while the T2450 gets 11.4 k points.

Summarizing, the 820 is 1.2 times faster than the T2450. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f44
6ec
Core
Smithfield
Yonah
Architecture
NetBurst
Base frecuency
2.8 GHz
2 GHz
Socket
LGA 775
micro FC-PGA 478-pin
Cores/Threads
2/2
2/2
TDP
130 W
W
Cache L1 (d+i)
16+8 kB
2x32+2x32 kB
Cache L2
2048 kB
2048 kB
Cache L3
0 kB
kB
Date
May 2005
Mean monothread perf.
7.45k points
6.49k points
Mean multithread perf.
14.07k points
11.37k 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
820
T2450
Test#1 (Integers)
1.46k
1.04k (x0.71)
Test#2 (FP)
2.6k
1.85k (x0.71)
Test#3 (Generic, ZIP)
1.26k
1.76k (x1.39)
Test#1 (Memory)
0.91k
0.97k (x1.07)
TOTAL
6.23k
5.62k (x0.9)

Multithread

820

T2450
Test#1 (Integers)
2.93k
1.78k (x0.61)
Test#2 (FP)
5.19k
3.51k (x0.68)
Test#3 (Generic, ZIP)
2.53k
3.05k (x1.21)
Test#1 (Memory)
0.94k
0.94k (x0.99)
TOTAL
11.59k
9.28k (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
820
T2450
Test#1 (Integers)
1.93k
1.81k (x0.94)
Test#2 (FP)
3.11k
1.96k (x0.63)
Test#3 (Generic, ZIP)
1.49k
1.81k (x1.21)
Test#1 (Memory)
0.91k
0.9k (x1)
TOTAL
7.45k
6.49k (x0.87)

Multithread

820

T2450
Test#1 (Integers)
3.92k
3.41k (x0.87)
Test#2 (FP)
6.23k
3.89k (x0.62)
Test#3 (Generic, ZIP)
2.99k
3.1k (x1.04)
Test#1 (Memory)
0.94k
0.97k (x1.04)
TOTAL
14.07k
11.37k (x0.81)

Performance/W
820
T2450
Test#1 (Integers)
30 points/W