| | | | | | |

Core 2 Duo T6600 vs Pentium D 925


Description
The T6600 is based on Core architecture while the 925 is based on NetBurst.

Using the multithread performance as a reference, the T6600 gets a score of 20.6 k points while the 925 gets 14 k points.

Summarizing, the T6600 is 1.5 times faster than the 925. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
f65
Core
Penryn-3M
Presler
Architecture
Base frecuency
2.2 GHz
3 GHz
Socket
Socket P
LGA 775
Cores/Threads
2/2
2/2
TDP
35 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
16+8 kB
Cache L2
2048 kB
4096 kB
Cache L3
kB
0 kB
Date
January 2009
October 2006
Mean monothread perf.
11.15k points
7.7k points
Mean multithread perf.
20.63k points
14.03k 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
T6600
925
Test#1 (Integers)
2.01k
1.52k (x0.76)
Test#2 (FP)
5.17k
2.95k (x0.57)
Test#3 (Generic, ZIP)
2.17k
1.51k (x0.69)
Test#1 (Memory)
0.75k
0.82k (x1.08)
TOTAL
10.1k
6.79k (x0.67)

Multithread

T6600

925
Test#1 (Integers)
3.88k
2.98k (x0.77)
Test#2 (FP)
9.84k
5.62k (x0.57)
Test#3 (Generic, ZIP)
4.17k
2.87k (x0.69)
Test#1 (Memory)
0.69k
0.82k (x1.18)
TOTAL
18.58k
12.29k (x0.66)

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
T6600
925
Test#1 (Integers)
2.55k
2.06k (x0.81)
Test#2 (FP)
5.59k
3.32k (x0.59)
Test#3 (Generic, ZIP)
2.26k
1.52k (x0.67)
Test#1 (Memory)
0.75k
0.8k (x1.06)
TOTAL
11.15k
7.7k (x0.69)

Multithread

T6600

925
Test#1 (Integers)
4.9k
4k (x0.82)
Test#2 (FP)
10.71k
6.32k (x0.59)
Test#3 (Generic, ZIP)
4.33k
2.91k (x0.67)
Test#1 (Memory)
0.69k
0.81k (x1.17)
TOTAL
20.63k
14.03k (x0.68)

Performance/W
T6600
925
Test#1 (Integers)
140 points/W
42 points/W
Test#2 (FP)
306 points/W
67 points/W
Test#3 (Generic, ZIP)
124 points/W
31 points/W
Test#1 (Memory)
20 points/W
9 points/W
TOTAL
589 points/W
148 points/W

Performance/GHz
T6600
925
Test#1 (Integers)
1160 points/GHz
686 points/GHz
Test#2 (FP)
2539 points/GHz
1105 points/GHz
Test#3 (Generic, ZIP)
1028 points/GHz
507 points/GHz
Test#1 (Memory)
341 points/GHz
266 points/GHz
TOTAL
5068 points/GHz
2565 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