Radeon HD 6790 and Steam Deck GPU - video card comparison
Radeon HD 6790
Steam Deck GPU
Architecture
Terascale 2 (2009−2015)
RDNA 2.0 (2020−2022)
GPU code name
Barts
Van Gogh
Market segment
Desktop
Desktop
Release date
April 2011
February 2022
Interface
PCIe 2.0 x16
-
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
1600 MHz
Core clock speed
840 MHz
-
Floating-point performance
1,344.0 gflops
-
Manufacturing process technology
40 nm
7 nm
Number of transistors
1,700 million
2,400 million
Pipelines / CUDA cores
800
512
Power consumption (TDP)
150 Watt
15 Watt
Texture fill rate
33.60
51.20
Memory type
GDDR5
LPDDR5
Maximum RAM amount
1 GB
16 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
5.5 GB/s
Memory bandwidth
134.4 GB/s
88 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x USB Type-C
HDMI
+
-
DirectX
11.2 (11_0)
12 (12_1)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.5
Vulkan
N/A
1.2