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Difference between revisions of "mediatek/helio/mt6797"
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'''Helio X20''' ('''MT6797''') is a {{arch|64}} [[deca-core]] [[ARM]] [[LTE]] system on a chip designed by [[MediaTek]] and introduced in early [[2015]]. This SoC incorporates 3 independent clusters of cores (called "Tri-Cluster Technology" by MediaTek) operating at varying degrees of performance designed for certain workloads (operating at 1.4 GHz, 2 GHz, and 2.5 GHz) and supports dual-channel LPDDR3-933. This SoC also incorporates a {{armh|Mali-T800 MP4}} [[IGP]] operating at 700 MHz. The chip has a modem supporting [[LTE]] User Equipment (UE) category 6.
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'''Helio X20''' ('''MT6797''') is a {{arch|64}} [[deca-core]] [[ARM]] [[LTE]] system on a chip designed by [[MediaTek]] and introduced in early [[2015]]. This SoC incorporates 3 independent clusters of cores (called "Tri-Cluster Technology" by MediaTek) operating at varying degrees of performance designed for certain workloads (operating at 1.4 GHz, 2 GHz, and 2.5 GHz) and supports dual-channel LPDDR3-933. This SoC also incorporates a {{armh|Mali-T800 MP4}} [[IGP]] operating at 780 MHz. The chip has a modem supporting [[LTE]] User Equipment (UE) category 6.
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== Architecture ==
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The Helio X20 is designed is composed of 3 individual clusters of CPU cores depending on the level of performance required by the active applications.
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* Extreme Performance - 2x {{armh|Cortex-A72|l=arch}} @ 2.5 GHz
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* Performance/Power Balance - 4x {{armh|Cortex-A53|l=arch}} @ 2 GHz
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* Power Efficiency - 4x {{armh|Cortex-A53|l=arch}} @ 1.4 GHz
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[[File:mediatek helio x20.png|450px]]
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== Cache ==
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{{main|arm holdings/microarchitectures/cortex-a53#Memory_Hierarchy|arm holdings/microarchitectures/cortex-a72#Memory_Hierarchy|l1=Cortex-A53 § Cache|l2=Cortex-A72 § Cache}}
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{{empty section}}
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== Memory controller ==
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{{memory controller
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|type=DDR3-933
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|ecc=No
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|max mem=4 GiB
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|controllers=1
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|channels=2
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|max bandwidth=13.9 GiB/s
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|bandwidth schan=6.95 GiB/s
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|bandwidth dchan=13.9 GiB/s
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}}
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== Expansions ==
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{{expansions
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|usb revision=2.0
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|usb revision 2=3.0
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|usb ports=8
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|uart=4
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|gp io=Yes
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}}
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== Graphics ==
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{{integrated graphics
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| gpu                = Mali-T880
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| device id          =
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| designer            = ARM Holdings
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| execution units    = 4
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| max displays        =
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| max memory          =
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| frequency          = 780 MHz
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| output dsi          = Yes
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| max res dsi        = 2560x1600
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| direct3d ver        = 11.2
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| opencl ver          = 1.2
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| opengl ver          = 3.2
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| opengl es ver      = 3.2
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| vulkan ver          = 1.0
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| openvg ver          = 1.1
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}}

Revision as of 17:30, 4 December 2016

Template:mpu Helio X20 (MT6797) is a 64-bit deca-core ARM LTE system on a chip designed by MediaTek and introduced in early 2015. This SoC incorporates 3 independent clusters of cores (called "Tri-Cluster Technology" by MediaTek) operating at varying degrees of performance designed for certain workloads (operating at 1.4 GHz, 2 GHz, and 2.5 GHz) and supports dual-channel LPDDR3-933. This SoC also incorporates a Mali-T800 MP4 IGP operating at 780 MHz. The chip has a modem supporting LTE User Equipment (UE) category 6.

Architecture

The Helio X20 is designed is composed of 3 individual clusters of CPU cores depending on the level of performance required by the active applications.

mediatek helio x20.png

Cache

Main articles: Cortex-A53 § Cache and Cortex-A72 § Cache
New text document.svg This section is empty; you can help add the missing info by editing this page.

Memory controller

[Edit/Modify Memory Info]

ram icons.svg
Integrated Memory Controller
Max TypeDDR3-933
Supports ECCNo
Max Mem4 GiB
Controllers1
Channels2
Max Bandwidth13.9 GiB/s
14,233.6 MiB/s
14.925 GB/s
14,925.011 MB/s
0.0136 TiB/s
0.0149 TB/s
Bandwidth
Single 6.95 GiB/s
Double 13.9 GiB/s

Expansions

[Edit/Modify Expansions Info]

ide icon.svg
Expansion Options
USB
Revision2.0, 3.0
Ports8
UART

GP I/OYes


Graphics

[Edit/Modify IGP Info]

screen icon.svg
Integrated Graphics Information
GPUMali-T880
DesignerARM Holdings
Execution Units4
Frequency780 MHz
0.78 GHz
780,000 KHz
OutputDSI

Max Resolution
DSI2560x1600

Standards
Direct3D11.2
OpenGL3.2
OpenCL1.2
OpenGL ES3.2
OpenVG1.1
Vulkan1.0
has ecc memory supportfalse +
integrated gpuMali-T880 +
integrated gpu base frequency780 MHz (0.78 GHz, 780,000 KHz) +
integrated gpu designerARM Holdings +
integrated gpu execution units4 +
max memory bandwidth13.9 GiB/s (14,233.6 MiB/s, 14.925 GB/s, 14,925.011 MB/s, 0.0136 TiB/s, 0.0149 TB/s) +
max memory channels2 +
supported memory typeDDR3-933 +