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|predecessor link=phytium/microarchitectures/mars_i
 
|predecessor link=phytium/microarchitectures/mars_i
 
}}
 
}}
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'''Mars II''' is the successor to {{\\|Mars I}}, an [[ARM]] server SoC microarchitecture designed by [[Phytium Technology]] for the Chinese server market.
+
'''Mars II''' is the successor to {{\\|Mars I}}, an [[ARM]] server SoC microarchitecture designed by [[Phytium Technology]] for the [[Chinese]] server market.
  
 
== Process technology ==
 
== Process technology ==
−
{{empty section}}
+
Mars II is largely a shrink of {{\\|Mars I}}, from [[28 nm process]] to a [[16 nm|16 nm FinFET process]].
  
 
== Architecture ==
 
== Architecture ==
−
{{empty section}}
+
=== Key changes from {{\\|Mars I}} ===
 +
* [[16 nm process]] (from [[28 nm]])
 +
* 15% higher frequency (2.3 GHz, up from 2 GHz)
 +
** higher [[FLOPS]] performance (588.8 GFLOPS, up from 512 GFLOPS)
 +
* -25% lower power (96 W [[TDP]], down from 120 W)
 +
* Core
 +
** FTC-662 (from FTC-661/0)
 +
* System memory
 +
** Panel directly connected to 1 MCU (Previously linked to CMC)
 +
*** [[DDR4]] (from [[DDR3]])
 +
*** Higher data rates (2400 MT/s, up from 1600 MT/s)
 +
{{expand list}}
 +
 
 +
== Block diagram ==
 +
=== Entire SoC ===
 +
:[[File:mars ii soc block diagram.svg|700px]]
 +
 
 +
=== Panel ===
 +
:[[File:mars ii panel block diagram.svg|300px]]
 +
 
 +
=== Core ===
 +
{{main|phytium/microarchitectures/xiaomi|l1=Xiaomi Core}}
 +
See {{\\|Xiaomi|Xiaomi Core}}.
  
 
== Overview ==
 
== Overview ==
−
{{empty section}}
+
Mars II is Phytium's second-generation [[many-core]] server processor based on a custom [[ARM]] core. The Mars II is largely a shrink of their first-generation SoC but it does introduce a number of enhancements. Fabricated on a leading-edge [[16 nm|16 nm FinFET process]], the new SoC is considerably smaller than the prior die, offers higher frequency, and lower power. Mars II features [[64 cores|64]] custom [[ARMv8.0]] cores operating at up to 2.3 GHz for a total of 588.8 [[GFLOPS]]. The SoC incorporates high DDR4-2400 memory channels and includes 33 PCIe Gen 3.0 lanes.
 +
 
 +
== Package ==
 +
<table class="wikitable">
 +
<tr><th>Package</th><td>FCBGA-3576</td><td rowspan="4">[[File:mars ii fcbga-3576.png|400px]]</td></tr>
 +
<tr><th>Dimensions</th><td>61mm x 61mm</td></tr>
 +
<tr><th>Bumps</th><td>11916</td></tr>
 +
<tr><th>Contacts</th><td>3576</td></tr>
 +
</table>
  
 
== Die ==
 
== Die ==
 +
=== Panel ===
 +
<div>
 +
<div style="float: left;">[[File:mars ii panel.png|200px]]</div>
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<div style="float: left;">[[File:mars ii panel (annotated).png|200px]]</div>
 +
</div>
 +
 +
{{clear}}
 +
=== SoC ===
 
* [[16 nm process]] (16FF+) GL
 
* [[16 nm process]] (16FF+) GL
 
* 1 [[polysilicon layer|Poly]], 11 [[Metal layers]], [[RDL]]
 
* 1 [[polysilicon layer|Poly]], 11 [[Metal layers]], [[RDL]]
 
* 6,000,000,000 [[transistors]]
 
* 6,000,000,000 [[transistors]]
 
* 370 mm² [[die size]]
 
* 370 mm² [[die size]]
 +
* 2.3 GHz @ 0.9 V, 96 W
  
  
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:[[File:mars ii die 2.png|600px]]
 
:[[File:mars ii die 2.png|600px]]
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 +
== All Mars II Processors ==
 +
<!-- NOTE:
 +
          This table is generated automatically from the data in the actual articles.
 +
          If a microprocessor is missing from the list, an appropriate article for it needs to be
 +
          created and tagged accordingly.
 +
 +
          Missing a chip? please dump its name here: https://en.wikichip.org/wiki/WikiChip:wanted_chips
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-->
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{{comp table start}}
 +
<table class="comptable sortable tc4">
 +
{{comp table header|main|6:List of Mars II-based Processors}}
 +
{{comp table header|cols|Launched|Cores|L2|%Frequency|%TDP}}
 +
{{#ask: [[Category:microprocessor models by phytium]] [[microarchitecture::Mars II]]
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|?full page name
 +
|?model number
 +
|?first launched
 +
|?core count
 +
|?l2$ size
 +
|?base frequency#GHz
 +
|?tdp#W
 +
|format=template
 +
|template=proc table 3
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|userparam=7
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|mainlabel=-
 +
}}
 +
{{comp table count|ask=[[Category:microprocessor models by phytium]] [[microarchitecture::Mars II]]}}
 +
</table>
 +
{{comp table end}}
 +
 +
== Bibliography ==
 +
* HPC Asia 2019

Latest revision as of 13:23, 26 March 2019

Edit Values
Mars II µarch
General Info
Arch TypeCPU
DesignerPhytium
ManufacturerTSMC
Introduction2019
Process16 nm
Core Configs64
Pipeline
TypeSuperscalar, Pipelined
OoOEYes
SpeculativeYes
Reg RenamingYes
Instructions
ISAARMv8
Succession

Mars II is the successor to Mars I, an ARM server SoC microarchitecture designed by Phytium Technology for the Chinese server market.

Process technology[edit]

Mars II is largely a shrink of Mars I, from 28 nm process to a 16 nm FinFET process.

Architecture[edit]

Key changes from Mars I[edit]

  • 16 nm process (from 28 nm)
  • 15% higher frequency (2.3 GHz, up from 2 GHz)
    • higher FLOPS performance (588.8 GFLOPS, up from 512 GFLOPS)
  • -25% lower power (96 W TDP, down from 120 W)
  • Core
    • FTC-662 (from FTC-661/0)
  • System memory
    • Panel directly connected to 1 MCU (Previously linked to CMC)
      • DDR4 (from DDR3)
      • Higher data rates (2400 MT/s, up from 1600 MT/s)

This list is incomplete; you can help by expanding it.

Block diagram[edit]

Entire SoC[edit]

mars ii soc block diagram.svg

Panel[edit]

mars ii panel block diagram.svg

Core[edit]

Main article: Xiaomi Core

See Xiaomi Core.

Overview[edit]

Mars II is Phytium's second-generation many-core server processor based on a custom ARM core. The Mars II is largely a shrink of their first-generation SoC but it does introduce a number of enhancements. Fabricated on a leading-edge 16 nm FinFET process, the new SoC is considerably smaller than the prior die, offers higher frequency, and lower power. Mars II features 64 custom ARMv8.0 cores operating at up to 2.3 GHz for a total of 588.8 GFLOPS. The SoC incorporates high DDR4-2400 memory channels and includes 33 PCIe Gen 3.0 lanes.

Package[edit]

PackageFCBGA-3576mars ii fcbga-3576.png
Dimensions61mm x 61mm
Bumps11916
Contacts3576

Die[edit]

Panel[edit]

mars ii panel.png
mars ii panel (annotated).png

SoC[edit]


mars ii die.png


mars ii die (annotated).png


mars ii die 2.png

All Mars II Processors[edit]

 List of Mars II-based Processors
ModelLaunchedCoresL2FrequencyTDP
FT-2000+/6420196432 MiB
32,768 KiB
33,554,432 B
0.0313 GiB
2.3 GHz
2,300 MHz
2,300,000 kHz
96 W
96,000 mW
0.129 hp
0.096 kW
Count: 1

Bibliography[edit]

  • HPC Asia 2019
Retrieved from "https://en.wikichip.org/w/index.php?title=phytium/microarchitectures/mars_ii&oldid=87380"
Facts about "Mars II - Microarchitectures - Phytium"
RDF feed
codenameMars II +
core count64 +
designerPhytium +
first launched2019 +
full page namephytium/microarchitectures/mars ii +
instance ofmicroarchitecture +
instruction set architectureARMv8 +
manufacturerTSMC +
microarchitecture typeCPU +
nameMars II +
process16 nm (0.016 μm, 1.6e-5 mm) +