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Core i7-720QM vs Pentium 4 HT 630


Description
The i7-720QM is based on Nehalem architecture while the 630 is based on NetBurst.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the 630 gets 9.1 k points.

Summarizing, the i7-720QM is 4.3 times faster than the 630. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
f43
Core
Clarksfield
Prescott
Architecture
Base frecuency
1.6 GHz
3 GHz
Boost frecuency
2.8 GHz
3 GHz
Socket
988-pin micro-FCPGA8
LGA 775
Cores/Threads
4/8
1/2
TDP
45 W
84 W
Cache L1 (d+i)
4x32+4x32 kB
16+8 kB
Cache L2
4x256 kB
2048 kB
Cache L3
6144 kB
0 kB
Date
September 2009
2005
Mean monothread perf.
13.13k points
7.92k points
Mean multithread perf.
38.78k points
9.14k 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
i7-720QM
630
Test#1 (Integers)
1.49k
1.56k (x1.04)
Test#2 (FP)
3.4k
2.78k (x0.82)
Test#3 (Generic, ZIP)
1.95k
1.34k (x0.69)
Test#1 (Memory)
2.08k
0.92k (x0.44)
TOTAL
8.92k
6.6k (x0.74)

Multithread

i7-720QM

630
Test#1 (Integers)
4.23k
1.27k (x0.3)
Test#2 (FP)
11.4k
3.26k (x0.29)
Test#3 (Generic, ZIP)
7.17k
1.58k (x0.22)
Test#1 (Memory)
4.51k
0.9k (x0.2)
TOTAL
27.32k
7.01k (x0.26)

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
i7-720QM
630
Test#1 (Integers)
5.49k
2.1k (x0.38)
Test#2 (FP)
3.55k
3.33k (x0.94)
Test#3 (Generic, ZIP)
2.01k
1.58k (x0.79)
Test#1 (Memory)
2.09k
0.91k (x0.44)
TOTAL
13.13k
7.92k (x0.6)

Multithread

i7-720QM

630
Test#1 (Integers)
15.06k
1.85k (x0.12)
Test#2 (FP)
12.15k
4.47k (x0.37)
Test#3 (Generic, ZIP)
7.18k
1.92k (x0.27)
Test#1 (Memory)
4.39k
0.9k (x0.21)
TOTAL
38.78k
9.14k (x0.24)

Performance/W
i7-720QM
630
Test#1 (Integers)
335 points/W
22 points/W
Test#2 (FP)
270 points/W
53 points/W
Test#3 (Generic, ZIP)
160 points/W
23 points/W
Test#1 (Memory)
98 points/W
11 points/W
TOTAL
862 points/W
109 points/W

Performance/GHz
i7-720QM
630
Test#1 (Integers)
1962 points/GHz
699 points/GHz
Test#2 (FP)
1267 points/GHz
1109 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
527 points/GHz
Test#1 (Memory)
745 points/GHz
305 points/GHz
TOTAL
4691 points/GHz
2640 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