Radeon Instinct Vega vs Sky 900

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2012−2020)GCN 5.1 (2018−2021)
GPU code nameTahitiVega 20
Market segmentDesktopDesktop
Release date27 March 2013 (11 years ago)no data
Current price$1173 $845

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores3584no data
Core clock speed825 MHz1000 MHz
Boost clock speed950 MHz1500 MHz
Number of transistors4,313 millionno data
Manufacturing process technology28 nm7 nm
Power consumption (TDP)300 Watt225 Watt
Texture fill rate106.4no data
Floating-point performance2x 3,405 gflopsno data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus supportPCIe 3.0no data
InterfacePCIe 3.0 x16PCIe 3.0 x16
Length305 mm267 mm
Width2-slotno data
Form factorfull height / full lengthno data
Supplementary power connectors2x 8-pin2x 8-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5no data
Maximum RAM amount6 GBno data
Memory bus width384 Bitno data
Memory clock speed5000 MHz2400 MHz
Memory bandwidth480 GB/sno data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x DVI, 1x mini-DisplayPortNo outputs
Dual-link DVI support1no data

API compatibility

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX12 (11_1)12.0 (12_1)
Shader Model5.1no data
OpenGL4.64.6
OpenCL1.2no data
Vulkan1.2.131no data

Pros & cons summary


Chip lithography 28 nm 7 nm
Power consumption (TDP) 300 Watt 225 Watt

We couldn't decide between Radeon Sky 900 and Radeon Instinct Vega. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon Sky 900
Radeon Sky 900
AMD Radeon Instinct Vega
Radeon Instinct Vega

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


5 1 vote

Rate Radeon Sky 900 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.7 42 votes

Rate Radeon Instinct Vega on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.