| | | | | | |

Core 2 Duo T7100 vs Pentium D 820


Description
The T7100 is based on Core architecture while the 820 is based on NetBurst.

Using the multithread performance as a reference, the T7100 gets a score of 12.9 k points while the 820 gets 14.1 k points.

Summarizing, the 820 is 1.1 times faster than the T7100 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fd
f44
Core
Merom
Smithfield
Architecture
Base frecuency
1.8 GHz
2.8 GHz
Socket
Socket P
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
May 2007
May 2005
Mean monothread perf.
7.05k points
7.45k points
Mean multithread perf.
12.9k points
14.07k points

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
T7100
820
Test#1 (Integers)
2.08k
1.93k (x0.93)
Test#2 (FP)
1.86k
3.11k (x1.67)
Test#3 (Generic, ZIP)
1.86k
1.49k (x0.8)
Test#1 (Memory)
1.25k
0.91k (x0.73)
TOTAL
7.05k
7.45k (x1.06)

Multithread

T7100

820
Test#1 (Integers)
4.16k
3.92k (x0.94)
Test#2 (FP)
3.73k
6.23k (x1.67)
Test#3 (Generic, ZIP)
3.73k
2.99k (x0.8)
Test#1 (Memory)
1.28k
0.94k (x0.73)
TOTAL
12.9k
14.07k (x1.09)

Performance/W
T7100
820
Test#1 (Integers)
119 points/W
30 points/W
Test#2 (FP)
107 points/W
48 points/W
Test#3 (Generic, ZIP)
106 points/W
23 points/W
Test#1 (Memory)
37 points/W
7 points/W
TOTAL
369 points/W
108 points/W

Performance/GHz
T7100
820
Test#1 (Integers)
1157 points/GHz
690 points/GHz
Test#2 (FP)
1033 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
1034 points/GHz
534 points/GHz
Test#1 (Memory)
692 points/GHz
324 points/GHz
TOTAL
3916 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