Intel i7-640M CN80617006936AA Manual Do Utilizador
Códigos do produto
CN80617006936AA
Datasheet
39
Technologies
Enabling Intel Turbo Boost Technology and Graphics Dynamic Frequency will maximize
the performance of the processor core and the GPU within its specified power levels.
Compared with previous generation products, Intel Turbo Boost Technology and
Graphics Dynamic Frequency will increase the ratio of application power to TDP. Thus,
thermal solutions and platform cooling that are designed to less than thermal design
guidance might experience thermal and performance issues since more applications will
tend to run at the maximum power limit for significant periods of time. For more
details, refer to
3.5
New Instructions
3.5.1
Advanced Encryption Standard New Instructions (AESNI)
A new set of Single Instruction Multiple Data (SIMD) instructions is introduced in this
generation of processor. These instructions enable fast and secure encryption and
decryption using AES. The new architecture introduces six Intel® SSE instructions.
Four instructions, namely AESENC, AESENCLAST, AESDEC, and AESDELAST facilitate
high performance AES encryption and decryption. The other two, namely AESIMC and
AESKEYGENASSIST, support the AES key expansion procedure. Together, these
instructions provide a full hardware for support AES, offering security, high
performance, and a great deal of flexibility.
3.5.2
PCLMULQDQ Instruction
The carry-less multiplication instruction, PCLMULQDQ, is a new Single Instruction
Multiple Data (SIMD) instruction that computes the 128-bit carry-less multiplication of
two, 64-bit operands without generating and propagating carries. Carry-less
multiplication is an essential processing component of several cryptographic systems
and standards. Hence, accelerating carry-less multiplication can significantly contribute
to achieving high-speed, secure computing and communication.
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