韩春雨大叫一声：接下来就是见证奇迹的时刻了！# Biology - 生物学
z*n
1 楼
http://www.anandtech.com/show/6536/arm-vs-x86-the-real-showdown
性能小胜Krait, CPU功耗比不包括L2 cache的Krait稍高, 整体功率稍低. Z2760用的是
32nm工艺, Krait 28nm.
Cortex A15 based Exynos 5 被证明是电老虎，峰值功率~8W(!),印证了大家一直怀疑
的A15的功耗问题.
"With lower voltage/clocks and a well architected turbo mode it may be
possible to deliver reasonable battery life, but simply tossing the Exynos 5
Dual from the Nexus 10 into a smartphone isn't going to work well. It's
very obvious to me why ARM proposed big.LITTLE with Cortex A15 and why Apple
designed Swift."
对Intel的评语：
"That being said, it is still surprising to me that a 5-year-old Atom
architecture paired with a low power version of a 3-year-old process
technology can be this competitive. In the next 9 - 12 months we'll finally
get an updated, out-of-order Atom core built on a brand new 22nm low power/
SoC process from Intel. This is one area where we should see real
improvement. Intel's chances to do well in this space are good if it can
manage to execute well and get its parts into designs people care about."
最后的结语:
"If ARM is the new AMD, then Krait is the new Athlon 64. The difference is,
this time, Intel isn't shipping a Pentium 4."
性能小胜Krait, CPU功耗比不包括L2 cache的Krait稍高, 整体功率稍低. Z2760用的是
32nm工艺, Krait 28nm.
Cortex A15 based Exynos 5 被证明是电老虎，峰值功率~8W(!),印证了大家一直怀疑
的A15的功耗问题.
"With lower voltage/clocks and a well architected turbo mode it may be
possible to deliver reasonable battery life, but simply tossing the Exynos 5
Dual from the Nexus 10 into a smartphone isn't going to work well. It's
very obvious to me why ARM proposed big.LITTLE with Cortex A15 and why Apple
designed Swift."
对Intel的评语：
"That being said, it is still surprising to me that a 5-year-old Atom
architecture paired with a low power version of a 3-year-old process
technology can be this competitive. In the next 9 - 12 months we'll finally
get an updated, out-of-order Atom core built on a brand new 22nm low power/
SoC process from Intel. This is one area where we should see real
improvement. Intel's chances to do well in this space are good if it can
manage to execute well and get its parts into designs people care about."
最后的结语:
"If ARM is the new AMD, then Krait is the new Athlon 64. The difference is,
this time, Intel isn't shipping a Pentium 4."
