| 词条 | Apple A12X |
| 释义 |
| name = Apple A12X Bionic | image = Apple A12X.jpg | image_size = | caption = | produced-start = October 30, 2018 | produced-end = Present | slowest = | fastest = 2.49[1] | size-from = 7 nm[2] | size-to = | soldby = | designfirm = Apple Inc. | manuf1 = TSMC[3] | arch = A64 | microarch = ARMv8‑A-Compatible | code = APL1083[4] | numcores = Octa-core (4× performance Vortex cores + 4× efficiency Tempest cores)[3] | l1cache = 128 KB instruction, 128 KB data | l2cache = 8 MB | l3cache = | gpu = Apple-designed 7-core[2] | application = Mobile | predecessor = Apple A10X Fusion | successor = | variant = Apple A12 Bionic }}{{Primary sources|article|date=December 2018}} The Apple A12X Bionic is a 64-bit system on a chip (SoC) designed by Apple Inc. It first appeared in the 11-inch iPad Pro and the third-generation 12.9-inch iPad Pro, which were both announced on October 30, 2018.[2] The A12X is a variant of the A12 and Apple claims that it has 35 percent faster single-core CPU performance and 90 percent faster multi-core CPU performance than its predecessor, the A10X.[2] DesignThe A12X features an Apple-designed 64-bit ARMv8-A octa-core CPU, with four high-performance cores called Vortex and four energy-efficient cores called Tempest.[2][3] The Vortex cores are a 7-wide decode out-of-order superscalar design, while the Tempest cores are a 3-wide decode out-of-order superscalar design. Like the Mistral cores, the Tempest cores are based on Apple's Swift cores from the Apple A6.[4] It is Apple’s first SoC with an octa core CPU.[3] The A12X integrates an Apple-designed septa core graphics processing unit (GPU) with twice the graphics performance of the A10X.[2] Embedded in the A12X is the M12 motion coprocessor.[5] The A12X includes dedicated neural network hardware that Apple calls a "Next-generation Neural Engine".[2] This neural network hardware, which is the same as found in the A12,[3] can perform up to 5 trillion operations per second.[2] The A12X is manufactured by TSMC using a 7 nm FinFET process, and it contains 10 billion transistors[3][2] vs. the 6.9 billion on the A12.[6] The A12X is paired with 4 GB or 6 GB of LPDDR4X memory in the third-generation 12.9" iPad Pro and the 11" iPad Pro.[7][8] Products that include the Apple A12X
See also
References1. ^{{cite web|url=https://browser.geekbench.com/v4/cpu/10787558|title=iPad8,8 - Geekbench Browser|website=Geekbench|access-date=November 12, 2018}} {{Apple Inc. hardware}}{{Application ARM-based chips}}2. ^1 2 3 4 5 6 7 8 {{cite press release |url=https://www.apple.com/newsroom/2018/10/new-ipad-pro-with-all-screen-design-is-most-advanced-powerful-ipad-ever/ |title=New iPad Pro with all-screen design is most advanced, powerful iPad ever |publisher=Apple Inc. |date=October 30, 2018 |accessdate=October 30, 2018}} 3. ^1 2 3 4 5 {{cite web |last=Frumusanu |first=Andrei |url=https://www.anandtech.com/show/13529/apple-announces-new-ipad |title=Apple Announces New 11" and 12.9" iPad Pros with A12X SoC |publisher=AnandTech |date=October 30, 2018 |accessdate= October 30, 2018}} 4. ^{{Cite web|url=https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-review-unveiling-the-silicon-secrets|title=The iPhone XS & XS Max Review: Unveiling the Silicon Secrets|last=Frumusanu|first=Andrei|website=www.anandtech.com|access-date=2019-01-27}} 5. ^{{cite web |url=https://www.apple.com/ipad-pro/specs/ |title=iPad Pro Technical Specifications |publisher=Apple Inc. |date=October 30, 2018 |accessdate=October 30, 2018 |archive-url=https://web.archive.org/web/20181030154058/https://www.apple.com/ipad-pro/specs/ |archive-date=October 30, 2018 |dead-url=no}} 6. ^{{cite web |last=Summers |first=Nick |url=https://www.engadget.com/2018/09/12/apple-a12-bionic-7-nanometer-chip/ |title=Apple's A12 Bionic is the first 7-nanometer smartphone chip |publisher=Engadget |date=September 12, 2018 |accessdate=September 12, 2018}} 7. ^{{cite web |last=Axon |first=Samuel |url=https://arstechnica.com/gadgets/2018/11/2018-ipad-pro-review-whats-a-computer/ |title= 2018 iPad Pro review: “What’s a computer?” |work=Ars Technica |publisher=Condé Nast |date=November 7, 2018 |access-date=November 12, 2018}} 8. ^1 {{cite web |url=https://www.ifixit.com/Teardown/iPad+Pro+11-Inch+Teardown/115457 |title=iPad Pro 11" Teardown |publisher=iFixit |date=November 12, 2018 |accessdate=November 12, 2018}} 3 : Apple Inc. mobile processors|ARM architecture|Computer-related introductions in 2018 |
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