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Intel Core i5-580M Vs core i5-480M

February 13th, 2011 Leave a comment Go to comments

Table : Core i5-580M Vs Core i5-480M Feature Differences

Feature Core i5-580M Core i5-480M
Core Frequency 2.66 GHz 2.66 GHz
No. Of Cores 2 (4 Hyperthreads) 2 (4 Hyperthreads)
Cache Organization 512KB L2 + 3MB L3 512KB L2 + 3MB L3
Turbo Frequency 3.33 GHz 2.93 GHz
TDP Rating 35 Watts 35 Watts
64 Bit Support Y Y
Lithography 32 nm 32 nm
Integrated Memory Controller DDR3-1066 DDR3-1066
Integrated Graphics Yes, Base 500 MHz, Turbo 766 MHz Yes, Base 500 MHz, Turbo 766 MHz

Table : Core i5-580M Vs Core i5-480M Benchmarking Comparison

Benchmarks Core i5-580M Core i5-480M
PassMark Score 2882 2765
Super Pi 2M (Lower in better) 33 seconds 36 seconds
3D Mark 06 CPU 3170 2950
Windows 7 Experience Score 6.9 6.9

Some more details of Core i5-580M

The core i5-580M is clocked same as its younger brother core i5-560M, but boasts a a higher turbo frequency. It can be categorised as moderate to high performance notebook processor with impressive performance as evident by its benchmark results.
The integrated GPU provides entry level graphics performance. The GPU supports independent turbo boost with maximum turbo frequency of 766 MHz with a base frequency of 500 MHz.The Core i5-580M does support the AES instructions and Intel Trusted Instructions (in addition to V-td). The the core i5-5xxM processors have higher turbo frequency compared to the corresponding core i5-4xxM parts, giving it an edge. The communication with the chipset is using fast differential DMI bus.

Some more details of Core i5-480M

The core i5-480M is a Mid level moderate performance notebook processor with impressive performance as evident by its benchmark results. The integrate GPU provides entry level graphics performance. The GPU supports independent turbo boost with maximum turbo frequency of 766 MHz over its base frequency of 500 MHz.The Core i5-480M does not support the AES instructions and Intel Trusted Instructions.

Intel Core i5-580 as well as the core i5-480M are both dual core parts and have nominal 2.66 GHz core frequency. Both have 3 MB of L3 Cache ( that intel calls Smart Cache). Both support Hyperthreading and have same specification with respect to the integrated DDR3 controller and the differential DMI but to communicate with the chipset.

So what is the difference between the Intel Core i5-580M Vs core i5-480M ? Well if you look at the specification sheets, the main difference is in their turbo speed. While the core i5-480M has a maximum turbo frequency of 2.93 GHz, the Core i5-580M has a maximum turbo frequency of 3.33 GHz. We should therefore expect marginal improvement in performance of the core i5-580M with respect to the core i5-480M. Is it really so ? We will check it later in the benchmarking, but before that let us take a look at few more difference.

The core i5-580M supports the Intel Virtualization Technology for Directed, which yhe core i4-480M does not. The core i5-580M also supports the AES New Instructions which is missing in the core i5-480M. Additionally, core i4-480M does not support the Intel Trusted Execution Technology.If your application uses any of these three technologies you will experience better performance with core i5-480M.

Now the only way to really check and compare the performance of these two processors is by looking at the benchmarking numbers. First the 3DMark06 score – The core i4-480M has a 3DMark06 score of 2935, while that of the core i5-580M has a score of 3174, which confirms our initial assumption that the core i5-580M has marginally better performance.

The Super Pi 2M benchmarking score is another result that we can compare for these two processors. We have found that the Super Pi calculation upto 2M takes 35 seconds for the Core i4-480M while it takes 33 seconds for the core i5-580M.

With these scores, we confirm that the performance of the Core i5-580M is marginally better than that of the core i4-480M. At the same time the difference may not be pronounced enough to justify more than $50 $100 increase in the nbotebook price, assuming all other specifications stay same – unless your applications take advantage of some of the extra features of the core i5-480M – like the AES new instructions.

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