Radeon HD 6390 and Radeon Steam Deck 8CU - video card comparison
Radeon HD 6390
Radeon Steam Deck 8CU
Architecture
TeraScale 2 (2009−2015)
RDNA 2 (2020−2022)
GPU code name
Redwood
RDNA 2 Sephiroth
Market segment
Desktop
Laptop
Release date
July 2011
November 2023
Interface
PCIe 2.0 x16
-
Supplementary power connectors
None
-
Boost clock speed
-
1900 MHz
Core clock speed
550 MHz
-
Floating-point performance
352.0 gflops
-
Manufacturing process technology
40 nm
6 nm
Number of transistors
627 million
-
Pipelines / CUDA cores
320
512
Power consumption (TDP)
39 Watt
-
Texture fill rate
8.800
-
Memory type
DDR2
-
Maximum RAM amount
1 GB
-
Memory bus width
128 Bit
-
Memory clock speed
1000 MHz
-
Memory bandwidth
16 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
-
HDMI
+
-
DirectX
11.2 (11_0)
12_1
OpenCL
1.2
-
OpenGL
4.4
-
Shader Model
5.0
-
Vulkan
N/A
-