Core 2 Duo T6500 vs Pentium D 820
Description
The T6500 is based on Core architecture while the 820 is based on NetBurst.
Using the multithread performance as a reference, the T6500 gets a score of 9.2 k points while the 820 gets 14.1 k points.
Summarizing, the 820 is 1.5 times faster than the T6500. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the T6500 gets a score of 9.2 k points while the 820 gets 14.1 k points.
Summarizing, the 820 is 1.5 times faster than the T6500. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
1067a
f44
Core
Penryn-3M
Smithfield
Base frecuency
2.1 GHz
2.8 GHz
Socket
FC-PGA 478
LGA 775
Cores/Threads
2/2
2/2
TDP
35 W
130 W
Cache L1 (d+i)
2x32+2x32 kB
16+8 kB
Cache L2
2048 kB
2048 kB
Date
April 2009
May 2005
Mean monothread perf.
10.9k points
7.45k points
Mean multithread perf.
9.17k 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
T6500
820
Test#1 (Integers)
0.07k
1.46k (x21.79)
Test#2 (FP)
3.11k
2.6k (x0.83)
Test#3 (Generic, ZIP)
0.62k
1.26k (x2.03)
Test#1 (Memory)
1.02k
0.91k (x0.89)
TOTAL
4.82k
6.23k (x1.29)
Multithread
T6500
820
Test#1 (Integers)
1.2k
2.93k (x2.44)
Test#2 (FP)
3.18k
5.19k (x1.63)
Test#3 (Generic, ZIP)
1.53k
2.53k (x1.65)
Test#1 (Memory)
1.21k
0.94k (x0.78)
TOTAL
7.12k
11.59k (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
T6500
820
Test#1 (Integers)
2.41k
1.93k (x0.8)
Test#2 (FP)
5.31k
3.11k (x0.59)
Test#3 (Generic, ZIP)
2.04k
1.49k (x0.73)
Test#1 (Memory)
1.14k
0.91k (x0.8)
TOTAL
10.9k
7.45k (x0.68)
Multithread
T6500
820
Test#1 (Integers)
1.81k
3.92k (x2.16)
Test#2 (FP)
4.55k
6.23k (x1.37)
Test#3 (Generic, ZIP)
1.58k
2.99k (x1.89)
Test#1 (Memory)
1.23k
0.94k (x0.76)
TOTAL
9.17k
14.07k (x1.54)
Performance/W
T6500
820
Test#1 (Integers)
52 points/W
30 points/W
Test#2 (FP)
130 points/W
48 points/W
Test#3 (Generic, ZIP)
45 points/W
23 points/W
Test#1 (Memory)
35 points/W
7 points/W
TOTAL
262 points/W
108 points/W
Performance/GHz
T6500
820
Test#1 (Integers)
1148 points/GHz
690 points/GHz
Test#2 (FP)
2530 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
972 points/GHz
534 points/GHz
Test#1 (Memory)
542 points/GHz
324 points/GHz
TOTAL
5192 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.
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