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Pentium D 925 vs Core i7-720QM


Description
The 925 is based on NetBurst architecture while the i7-720QM is based on Nehalem.

Using the multithread performance as a reference, the 925 gets a score of 14 k points while the i7-720QM gets 31.5 k points.

Summarizing, the i7-720QM is 2.3 times faster than the 925. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f65
106e5
Core
Presler
Clarksfield
Architecture
Base frecuency
3 GHz
1.6 GHz
Boost frecuency
3 GHz
2.8 GHz
Socket
LGA 775
988-pin micro-FCPGA8
Cores/Threads
2/2
4/8
TDP
95 W
45 W
Cache L1 (d+i)
16+8 kB
4x32+4x32 kB
Cache L2
4096 kB
4x256 kB
Cache L3
0 kB
6144 kB
Date
October 2006
September 2009

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
925
i7-720QM
Test#1 (Integers)
1521
875 (-42.49%)
Test#2 (FP)
2948
2166 (-26.52%)
Test#3 (Generic, ZIP)
1506
1212 (-19.47%)
Test#1 (Memory)
816
1522 (86.44%)
TOTAL
6791
5775 (-14.96%)

Multithread

925

i7-720QM
Test#1 (Integers)
2982
3257 (9.23%)
Test#2 (FP)
5616
9134 (62.63%)
Test#3 (Generic, ZIP)
2870
5569 (94.06%)
Test#1 (Memory)
819
4116 (402.69%)
TOTAL
12287
22076 (79.67%)

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
925
i7-720QM
Test#1 (Integers)
2059
3809 (84.99%)
Test#2 (FP)
3316
2316 (-30.17%)
Test#3 (Generic, ZIP)
1522
1413 (-7.13%)
Test#1 (Memory)
799
1691 (111.53%)
TOTAL
7696
9229 (19.91%)

Multithread

925

i7-720QM
Test#1 (Integers)
3995
11953 (199.16%)
Test#2 (FP)
6318
9885 (56.44%)
Test#3 (Generic, ZIP)
2905
5684 (95.65%)
Test#1 (Memory)
808
3945 (388.10%)
TOTAL
14027
31466 (124.32%)

Performance/W
925
i7-720QM
Test#1 (Integers)
42 points/W
266 points/W
Test#2 (FP)
67 points/W
220 points/W
Test#3 (Generic, ZIP)
31 points/W
126 points/W
Test#1 (Memory)
9 points/W
88 points/W
TOTAL
148 points/W
699 points/W

Performance/GHz
925
i7-720QM
Test#1 (Integers)
686 points/GHz
1360 points/GHz
Test#2 (FP)
1105 points/GHz
827 points/GHz
Test#3 (Generic, ZIP)
507 points/GHz
505 points/GHz
Test#1 (Memory)
266 points/GHz
604 points/GHz
TOTAL
2565 points/GHz
3296 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. 3.7.8