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{{amd title|Vega|arch}}
+
{{amd title|GCN 5th gen|arch}}
 
{{microarchitecture
 
{{microarchitecture
|atype=GPU
+
| atype           = GPU
|name=Vega
+
| name             = GCN 5th gen
|designer=AMD
+
| designer         = AMD
|manufacturer=GlobalFoundries
+
| manufacturer     = GlobalFoundries
|introduction=2017
+
| manufacturer 2  =
|process=12 nm
+
| introduction     = 2017
|predecessor=Polaris
+
| phase-out        =
|predecessor link=amd/microarchitectures/polaris
+
| process         = 14 nm
|successor=Navi
+
 
|successor link=amd/microarchitectures/navi
+
| succession      = yes
|succession=yes
+
| predecessor     = GCN 4th gen
 +
| predecessor link = amd/microarchitectures/graphics core next4th gen
 +
| successor       = GCN 6th gen
 +
| successor link   = amd/microarchitectures/graphics core next 6th gen
 
}}
 
}}
'''Vega''' (also known as '''Graphics core next 5th generation''') is both a [[microarchitecture]] and GPU family developed by [[AMD]] as a successor to the {{\\|GCN4}} [[microarchitecture]] and the {{\\|arctic islands}} family.
+
'''Graphics core next 5th gen''' (also known as '''Vega''') is a planned [[microarchitecture]] being developed by [[AMD]] as a successor to {{\\|GCN 4th gen}}.  
 
 
== Codenames ==
 
[[File:amd ryzen radeon.svg|right|400px]]
 
{| class="wikitable"
 
|-
 
! Codename !! Description
 
|-
 
| {{amd|Raven Ridge|l=core}} || Mobile processors based on {{\\|Zen}} CPUs and a Vega GPU
 
|}
 
 
 
== Models ==
 
{| class="wikitable tc2 tc3"
 
|-
 
! colspan="3" | Vega [[IGP]] Models !! colspan="10" | Standards
 
|-
 
! rowspan="2" | Name !! rowspan="2" | Compute Units !! rowspan="2" | Shaders!! colspan="2" | [[Vulkan]] !! colspan="3" | [[Direct3D]] !! colspan="2" | [[OpenGL]] !! colspan="2" | [[OpenCL]]
 
|-
 
| Windows || Linux || Windows || Linux || [[High Level Shading Language|HLSL]] || Windows || Linux || Windows || Linux
 
|-
 
| Vega 8 || 8|| 512 || rowspan="3" colspan="2" style="text-align: center;" | '''1.1''' || rowspan="3" style="text-align: center;" | '''12''' || rowspan="3" style="text-align: center;" | '''N/A''' || rowspan="3" style="text-align: center;" | '''-''' || rowspan="3" style="text-align: center;" | '''4.6''' || rowspan="3" style="text-align: center;" | '''4.6''' || rowspan="3" style="text-align: center;" colspan="2" | '''2.2'''
 
|-
 
| Vega 10 || 10|| 640
 
|-
 
| Vega 11 || 11|| 704
 
|}
 
 
 
{| class="wikitable tc2 tc3"
 
|-
 
! colspan="3" | Vega Dedicated Models !! colspan="10" | Standards
 
|-
 
! rowspan="2" | Name !! rowspan="2" | Compute Units !! rowspan="2" | Shaders!! colspan="2" | [[Vulkan]] !! colspan="3" | [[Direct3D]] !! colspan="2" | [[OpenGL]] !! colspan="2" | [[OpenCL]]
 
|-
 
| Windows || Linux || Windows || Linux || [[High Level Shading Language|HLSL]] || Windows || Linux || Windows || Linux
 
|-
 
| Vega 56 || 56|| 3584 || rowspan="2" colspan="2" style="text-align: center;" | '''1.1''' || rowspan="2" style="text-align: center;" | '''12''' || rowspan="2" style="text-align: center;" | '''N/A''' || rowspan="2" style="text-align: center;" | '''-''' || rowspan="2" style="text-align: center;" | '''4.6''' || rowspan="2" style="text-align: center;" | '''4.6''' || rowspan="2" style="text-align: center;" colspan="2" | '''2.2'''
 
|-
 
| Vega 64 || 64|| 4096
 
|}
 
 
 
== Performance ==
 
The original target of the RX Vega series was to compete with Nvidia's latest Pascal architecture.
 
RX Vega 64 -> GTX 1080
 
RX Vega 56 -> GTX 1070
 
 
 
The performance is generally good, but when it comes to performance per watt, or PPW, Vega is outperformed by Pascal.
 
 
 
== Hardware Accelerated Video ==
 
{{zen with vega hardware accelerated video table|col=1}}
 
 
 
== Process Technology ==
 
{{see also|14 nm process}}
 
Vega is manufactured on [[GlobalFoundries]]' [[14 nm process]].
 
  
 
== Architecture ==
 
== Architecture ==
 
[[File:amd gpu roadmap.png|400px|right]]
 
[[File:amd gpu roadmap.png|400px|right]]
  
{{future information}}
+
=== Key changes from {{\\|graphics core next 4th gen(Vega)}} ===
 
+
* High Bandwidth Cache Controller
=== Key changes from {{amd|Arctic Islands|l=arch}} ===
+
* HBM 2
*New programmable geometry pipeline
 
**Up to 2x throughput
 
**Primitive shaders
 
**Improved workload balancing
 
*Tile based rendering
 
*New low precision instructions
 
**Half precision floating point with 2x performance
 
**8 bit integer with 4x performance
 
*15% higher clock speeds
 
*HBM 2
 
**2x bandwidth
 
**4x memory capacity
 
*New memory controller
 
*Render back-end is now a client of the L2 cache
 
*The instruction buffer has been enlarged
 
 
 
 
====HBM 2====
 
Vega makes use of 2 stacks of HBM 2 ([[High bandwidth memory]]).
 
 
 
{| class="wikitable"
 
|-
 
! single stack !! HBM 1 !! HBM 2
 
|-
 
| dies || 4 + 1<info>4 dram die, 1 control die</info> || 2-8 + 1<info>2,4 or 8 dram die, 1 control die</info>
 
|-
 
| Gb/die || 2Gb || 8Gb
 
|-
 
| total Gb || 8Gb || 16-64Gb
 
|-
 
| bus width || 1024 || 1024
 
|-
 
| clock speed || 500 MHz || 945 MHz
 
|-
 
| bandwidth || 128 GB/s || 238 GB/s
 
|}
 
  
 
== References ==
 
== References ==
 
* AMD 2017 Financial Analyst Day, May 16, 2017
 
* AMD 2017 Financial Analyst Day, May 16, 2017
 
== Documents ==
 
* [[:File:vega-whitepaper.pdf|White Paper: Radeon’s next-generation Vega architecture]]
 
  
 
== See Also ==
 
== See Also ==
 
* [[list of microarchitectures]]
 
* [[list of microarchitectures]]
* [[intel/microarchitectures|gen9]]
 
* {{amd|Raven Ridge|l=core}}
 

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codenameVega +
designerAMD +
first launched2017 +
full page nameamd/microarchitectures/vega +
instance ofmicroarchitecture +
manufacturerGlobalFoundries +
microarchitecture typeGPU +
nameVega +
process12 nm (0.012 μm, 1.2e-5 mm) +