Radeon RX 6900 and A40 PCIe - video card comparison
Radeon RX 6900
A40 PCIe
Architecture
RDNA 2.0 (2020−2022)
Ampere (2020−2022)
GPU code name
Navi 21
GA102
Market segment
Desktop
Desktop
Release date
October 2020
October 2020
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
8-pin EPS
Boost clock speed
2105 MHz
1755 MHz
Manufacturing process technology
7 nm
8 nm
Number of transistors
23,000 million
28,300 million
Pipelines / CUDA cores
4608
10752
Power consumption (TDP)
255 Watt
300 Watt
Texture fill rate
606.2
589.7
Memory type
GDDR6
GDDR6
Maximum RAM amount
16 GB
48 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
16 GB/s
14.5 GB/s
Memory bandwidth
512.0 GB/s
695.8 GB/s
Display Connectors
1x HDMI, 2x DisplayPort, 1x USB Type-C
3x DisplayPort
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.6
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2
1.2