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Core i7-930 vs i5-450M


Description
Both models i7-930 and i5-450M are based on Westmere architecture.



Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the i5-450M gets 29.1 k points.

Summarizing, the i7-930 is 2.4 times faster than the i5-450M. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
20655
Core
Bloomfield
Arrandale
Architecture
Base frecuency
2.8 GHz
2.4 GHz
Boost frecuency
3.067 GHz
2.667 GHz
Socket
LGA 1366
Socket G1
Cores/Threads
4/8
2/4
TDP
130 W
35 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
February 2010
June 2010
Mean monothread perf.
17.58k points
12.93k points
Mean multithread perf.
69.39k points
29.1k 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
i7-930
i5-450M
Test#1 (Integers)
1.94k
1.61k (x0.83)
Test#2 (FP)
4.38k
3.8k (x0.87)
Test#3 (Generic, ZIP)
2.64k
2.19k (x0.83)
Test#1 (Memory)
2.41k
1.65k (x0.68)
TOTAL
11.37k
9.25k (x0.81)

Multithread

i7-930

i5-450M
Test#1 (Integers)
7.3k
2.91k (x0.4)
Test#2 (FP)
19.36k
5.05k (x0.26)
Test#3 (Generic, ZIP)
13.43k
3.28k (x0.24)
Test#1 (Memory)
2.01k
3.07k (x1.53)
TOTAL
42.11k
14.31k (x0.34)

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
i7-930
i5-450M
Test#1 (Integers)
7.28k
5.4k (x0.74)
Test#2 (FP)
4.82k
3.7k (x0.77)
Test#3 (Generic, ZIP)
2.86k
2.06k (x0.72)
Test#1 (Memory)
2.62k
1.77k (x0.68)
TOTAL
17.58k
12.93k (x0.74)

Multithread

i7-930

i5-450M
Test#1 (Integers)
28.09k
11.83k (x0.42)
Test#2 (FP)
21.62k
9.39k (x0.43)
Test#3 (Generic, ZIP)
14.83k
5.31k (x0.36)
Test#1 (Memory)
4.85k
2.58k (x0.53)
TOTAL
69.39k
29.1k (x0.42)

Performance/W
i7-930
i5-450M
Test#1 (Integers)
216 points/W
338 points/W
Test#2 (FP)
166 points/W
268 points/W
Test#3 (Generic, ZIP)
114 points/W
152 points/W
Test#1 (Memory)
37 points/W
74 points/W
TOTAL
534 points/W
831 points/W

Performance/GHz
i7-930
i5-450M
Test#1 (Integers)
2372 points/GHz
2024 points/GHz
Test#2 (FP)
1571 points/GHz
1388 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
772 points/GHz
Test#1 (Memory)
855 points/GHz
665 points/GHz
TOTAL
5732 points/GHz
4850 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