AMD Radeon Pro W6900X vs NVIDIA RTX A400
GPU · Specs Compare
Graphics Card
Release Date
Aug 2021
Apr 2024
Generation
Radeon Pro Mac
Quadro Ampere(Ax000)
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1825 MHz
1417 MHz
Boost Clock
2150 MHz
1762 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
32GB
4GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
64bit
Bandwidth
512.0GB/s
96.00GB/s
Render Config
Compute Units
80
—
Shading Units
5120
768
TMUs
320
24
ROPs
128
16
RT Cores
80
6
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
4 MB
2 MB
L3 Cache
128 MB
—
SM Count
—
6
Tensor Cores
—
24
Theoretical Performance
Pixel Rate
275.2 GPixel/s
28.19 GPixel/s
Texture Rate
688.0 GTexel/s
42.29 GTexel/s
FP16 (half)
44.03 TFLOPS
2.706 TFLOPS
FP32 (float)
22.02 TFLOPS
2.706 TFLOPS
FP64 (double)
1376 GFLOPS
42.29 GFLOPS
Graphics Processor
GPU Name
Navi 21
GA107
GPU Variant
Navi 21 Pro-XTA
—
Architecture
RDNA 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
7 nm
8 nm
Transistors
26.8 billion
8.7 billion
Die Size
520 mm²
200 mm²
Board Design
TDP
300W
50W
Suggested PSU
700 W
250 W
Outputs
1x HDMI 2.14x Thunderbolt
4x mini-DisplayPort 1.4a
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.3
1.3
Shader Model
6.5
6.8
CUDA
—
8.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.