New i7 mobile processors shipping

Forum Laptops & Notebooks : General Discussion New i7 mobile processors shipping

Dell has two new processors as an option on the Alienware M15x

Intel® Core™ i5-540M 2.53GHz (3.06Ghz Turbo Mode, 3M cache)
Intel® Core™ i7-620M 2.66GHz (3.33Ghz Turbo Mode, 4M cache)

What are the tradeoffs compared to the

Intel Core i7 720QM 1.6GHz (2.8 GHz Turbo Mode, 6MB Cache)

The costs are basically the same. My use case is as a desktop replacement, so I want the most processing power and don't care about battery. The confusing thing is that the new chips have higher clock speeds.

Thanks for any advice!

Reply to DC_firsttime

Go for i7 720,its faster

Reply to Maziar

At the moment there’s not much benchmark data available for Intel Core i7-620M, however this a dual core (4 threads) processor with 4MB cache , while the i7 720QM is quad core (8 threads) with 6MB cache.

The base clock speed on i7-620M is 2.66GHz and Turbomax 3.33 GHzGHz, while on i7 720QM the base clock is 1.6 GHz and Turbomax 2.8 GHz.

i7-620M is manufactured in newer 32 nanometer process and has integrated graphics chip, this makes the possibility to change between integrated and the dedicated graphics card to save battery energy.

As there’s not much data available at present, is difficult to give you a clear answer, as Maziar recommended going for i7 720QM with 4 computing cores and 8 threads is the saver bet. Having said that, i7-620M might be faster on some application and games which are not optimized for threading, due to faster base clock.

Reply to ibnsina

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New i7 mobile processors shipping

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