Ultrabook's favorite: Ivy Bridge adds three ultra-low pressure versions When the first models were exposed, we knew that Ivy Bridge will have two ULV ultra low voltage versions of the Core i7-3667U and Core i5-3427U on the mobile platform. The latest news shows that Intel also prepared three other similar models. , across the Core i7/i5/i3 three sub-series, the standard thermal design power is also 17W.

First of all, recall: Core i5-3427U, Core i7-3667U are dual-core four threads, three cache 3/4MB, graphics core HD Graphics 4000, frequency 350-1150MHz, memory support DDR3-1600/DDR3L-1333.

The most interesting part is the frequency and thermal design power that can be varied: Core i5-3247U is originally clocked at 1.8 GHz. The thermal design power consumption is adjustable upwards and downwards. It can be floated within the range of 14-25W, of which 14W. The frequency will drop to 800MHz, and it will automatically rise to 2.5GHz at 25W, and it will not enter the Turbo Boost acceleration mode. The standard frequency of the Core i7-3667U is 2.0GHz, which can be accelerated up to 2.5GHz and 25W.

In the case of Turbo Boost mode, the dual cores can be accelerated to 2.6 GHz and 3.0 GHz, while the single cores can reach 2.8 GHz and 3.2 GHz.

Look at the new model, the first is the bottom of the "Core i3-3217U", dual-core, does not support hyper-threading and dynamic acceleration, nor manual overclocking, the standard frequency of 1.8GHz, down to 800MHz, 14W, but can not be upward In addition, its graphics core acceleration frequency also dropped to 1050MHz, but the three-level cache retains 3MB, and the memory frequency is still DDR3-1600.

Then is the "Core i5-3317U", dual-core four threads, the standard frequency of 1.7GHz, but also down to 800MHz, 14W but can not be up, but supports dynamic acceleration, dual-core up to 2.4GHz, single-core energy to 2.6GHz.

Its graphics core acceleration frequency is also 1050MHz, but what is interesting is that it does not lock frequency, players can freely overclock, but it can be provided to the user ultimately depends on the choice of notebook manufacturers, I feel that the possibility is not great.

Finally, the "Core i7-3517M", dual-core four-threaded, standard frequency 1.9GHz, can be adjusted up to 2.4GHz, 25W up, dynamic acceleration mode can achieve dual-core 2.8GHz, single-core 3.0GHz. The graphics core acceleration frequency is 1150MHz like the Core i7-3667U, and the 3rd-level cache is also 4MB.

The three new models ending with the 17 number are likely to be OEM-specific, mainly for Ultrabook ultrabooks, and therefore do not support Core i5-3427U, Core i7-3667U shrink with Intel vPro, TXT technology, and the bottom of the The Core i3-3217U also cuts off random number generators, VT-d virtualization, and AES-NI instruction sets - you are still called Pentium or Celeron.

Considering the postponement of Ivy Bridge's release process, I would like to see ultrabooks equipped with these ultra-low voltage processors at least until June, or even later.

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