| 词条 | Apple A6X |
| 释义 |
| name = Apple A6X | image = Apple A6X chip.jpg | image_size = frameless|upright=1.25 | caption = The A6X chip used in the fourth-generation iPad | produced-start = November 2, 2012 | produced-end = October 16, 2014 | slowest = 1.4 GHz[1] | fastest = | slow-unit = | fast-unit = | size-from = 32 nm.[2] | size-to = | soldby = | designfirm = Apple Inc. | manuf1 = Samsung Electronics | arch = ARM, Thumb-2 | microarch = Swift,[1] ARMv7-A-compatible[1] | code = S5L8955X | numcores = 2[1] | l1cache = 32 KB instruction + 32 KB data[1] | l2cache = 1 MB[7] | l3cache = | gpu = PowerVR SGX554MP4 (quad-core)[1] | application = Mobile | predecessor = Apple A5X | successor = Apple A7 | variant = Apple A6 }} The Apple A6X is a 32-bit system-on-a-chip (SoC) designed by Apple Inc., introduced at the launch of the fourth generation iPad on October 23, 2012. It is a high-performance variant of the Apple A6. Apple claims the A6X has twice the CPU performance and up to twice the graphics performance of its predecessor, the Apple A5X.[2] DesignThe A6X features a 1.4 GHz custom Apple-designed ARMv7-A architecture based dual-core CPU called Swift,[3] introduced in the Apple A6.[4] It includes an integrated quad-core PowerVR SGX554MP4 graphics processing unit (GPU)[3] running at 300 MHz{{fact|date=September 2013}} and a quad-channel memory subsystem.[3] The memory subsystem supports LPDDR2-1066 DRAM, increasing the theoretical memory bandwidth to 17 GB/s.[5] Unlike the A6, but similar to the A5X, the A6X is covered with a metal heat spreader, includes no RAM, and is not a package-on-package (PoP) assembly. The A6X is manufactured by Samsung on a High-κ metal gate (HKMG) 32 nm process. It has a die with an area of 123 mm2, 30% larger than the A6.[6] Products that include the Apple A6X
See also
References1. ^{{cite web |url=http://browser.primatelabs.com/geekbench2/2289949 |title=iPad (4th generation) |publisher=Geekbench |date=September 12, 2013 |accessdate=September 18, 2013}} 2. ^{{cite web |url=https://www.apple.com/pr/library/2012/10/23Apple-Introduces-iPad-mini.html |title=Apple Introduces iPad mini |publisher=Apple |date=October 23, 2012 |accessdate=September 16, 2013}} 3. ^1 2 3 4 5 6 7 {{cite web |first=Anand |last=Lal Shimpi |url=http://www.anandtech.com/show/6426/ipad-4-gpu-performance-analyzed-powervr-sgx-554mp4-under-the-hood |title=iPad 4 GPU Performance Analyzed: PowerVR SGX 554MP4 Under the Hood |publisher=AnandTech |date=November 2, 2012 |accessdate=September 16, 2013}} 4. ^{{cite web |first1=Anand |last1=Lal Shimpi |first2=Brian |last2=Klug |first3=Vivek |last3=Gowri |url=http://www.anandtech.com/show/6330/the-iphone-5-review/5 |title=The iPhone 5 Review - Decoding Swift |publisher=AnandTech |date=October 16, 2012 |accessdate=September 17, 2013}} 5. ^1 {{cite web |first=Anand |last=Lal Shimpi |url=http://www.anandtech.com/show/6472/ipad-4-late-2012-review/3 |title=iPad 4 (Late 2012) Review: CPU Performance |publisher=AnandTech |date=December 6, 2012 |accessdate=September 17, 2013}} 6. ^1 {{cite web |url=http://www.chipworks.com/en/technical-competitive-analysis/resources/blog/inside-the-apple-ipad-4-a6x-a-very-new-beast/ |title=Inside the Apple iPad 4 – A6X a very new beast! |publisher=Chipworks |date=November 1, 2012 |accessdate=September 15, 2013}} External links{{Apple Inc.}}{{Apple Inc. hardware}}{{Apple hardware since 1998}}{{Application ARM-based chips}} 3 : Computer-related introductions in 2012|Apple Inc. mobile processors|ARM architecture |
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