AMD Radeon Pro W6900X vs NVIDIA RTX 4000 SFF Ada Generation
GPU · Specs Compare
Graphics Card
Release Date
Aug 2021
Nov 2018
Generation
Radeon Pro Mac
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1825 MHz
1200 MHz
Boost Clock
2150 MHz
1746 MHz
Memory Clock
2000 MHz
1000 MHz
Memory
Memory Size
32GB
16GB
Memory Type
GDDR6
HBM2
Memory Bus
256bit
4096bit
Bandwidth
512.0GB/s
1.02TB/s
Render Config
Compute Units
80
60
Shading Units
5120
3840
TMUs
320
240
ROPs
128
64
RT Cores
80
48
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
4 MB
L3 Cache
128 MB
—
SM Count
—
48
Tensor Cores
—
192
Theoretical Performance
Pixel Rate
275.2 GPixel/s
111.7 GPixel/s
Texture Rate
688.0 GTexel/s
419.0 GTexel/s
FP16 (half)
44.03 TFLOPS
26.82 TFLOPS
FP32 (float)
22.02 TFLOPS
13.41 TFLOPS
FP64 (double)
1376 GFLOPS
6.705 TFLOPS
Graphics Processor
GPU Name
Navi 21
Vega 20
GPU Variant
Navi 21 Pro-XTA
Vega 20 GLXT
Architecture
RDNA 2.0
GCN 5.1
Foundry
TSMC
TSMC
Process Size
7 nm
7 nm
Transistors
26.8 billion
13.23 billion
Die Size
520 mm²
331 mm²
Board Design
TDP
300W
300W
Suggested PSU
700 W
700 W
Outputs
1x HDMI 2.14x Thunderbolt
1x mini-DisplayPort 1.4a
Power Connectors
None
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.3
Shader Model
6.5
6.7
CUDA
—
8.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.