NVIDIA RTX 4000 SFF Ada Generation vs AMD Radeon Sky 900
GPU Specs Compare
Graphics Card
Release Date
Nov 2018
Mar 2013
Generation
Radeon Instinct
Radeon Sky
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1200 MHz
825 MHz
Boost Clock
1746 MHz
950 MHz
Memory Clock
1000 MHz
1250 MHz
Memory
Memory Size
16GB
3GB
Memory Type
HBM2
GDDR5
Memory Bus
4096bit
384bit
Bandwidth
1.02TB/s
240.0GB/s
Render Config
SM Count
48
-
Compute Units
60
28
Shading Units
3840
1792
TMUs
240
112
ROPs
64
32
Tensor Cores
192
-
RT Cores
48
-
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
4 MB
768 KB
Theoretical Performance
Pixel Rate
111.7 GPixel/s
30.40 GPixel/s
Texture Rate
419.0 GTexel/s
106.4 GTexel/s
FP16 (half)
26.82 TFLOPS
-
FP32 (float)
13.41 TFLOPS
3.405 TFLOPS
FP64 (double)
6.705 TFLOPS
851.2 GFLOPS
Graphics Processor
GPU Name
Vega 20
Tahiti
GPU Variant
Vega 20 GLXT
Orthrus
Architecture
GCN 5.1
GCN 1.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
13.23 billion
4.313 billion
Die Size
331 mm²
352 mm²
Board Design
TDP
300W
300W
Suggested PSU
700 W
700 W
Outputs
1x mini-DisplayPort 1.4a
1x DVI1x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.3
1.2
CUDA
8.9
-
Shader Model
6.7
5.1