AMD Radeon Pro W6900X vs NVIDIA L20
GPU Specs Compare
Graphics Card
Release Date
Aug 2021
Nov 2023
Generation
Radeon Pro Mac
Server Ada
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1825 MHz
1440 MHz
Boost Clock
2150 MHz
2520 MHz
Memory Clock
2000 MHz
2250 MHz
Memory
Memory Size
32GB
48GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
384bit
Bandwidth
512.0GB/s
864.0GB/s
Render Config
Compute Units
80
-
Shading Units
5120
11776
TMUs
320
368
ROPs
128
128
RT Cores
80
92
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
4 MB
96 MB
L3 Cache
128 MB
-
SM Count
-
92
Tensor Cores
-
368
Theoretical Performance
Pixel Rate
275.2 GPixel/s
322.6 GPixel/s
Texture Rate
688.0 GTexel/s
927.4 GTexel/s
FP16 (half)
44.03 TFLOPS
59.35 TFLOPS
FP32 (float)
22.02 TFLOPS
59.35 TFLOPS
FP64 (double)
1376 GFLOPS
927.4 GFLOPS
Graphics Processor
GPU Name
Navi 21
AD102
GPU Variant
Navi 21 Pro-XTA
AD102
Architecture
RDNA 2.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
7 nm
5 nm
Transistors
26.8 billion
76.3 billion
Die Size
520 mm²
609 mm²
Board Design
TDP
300W
275W
Suggested PSU
700 W
600 W
Outputs
1x HDMI 2.14x Thunderbolt
4x DisplayPort 1.4a
Power Connectors
None
1x 16-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.3
1.4
Shader Model
6.5
6.9
CUDA
-
8.9