Radeon HD 6870 X2 and Steam Deck GPU - video card comparison
Radeon HD 6870 X2
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
July 2011
February 2022
Interface
PCIe 2.0 x16
-
Supplementary power connectors
-
None
Boost clock speed
-
1600 MHz
Core clock speed
900 MHz
-
Floating-point performance
2x 2,016.0 gflops
-
Manufacturing process technology
40 nm
7 nm
Number of transistors
1,700 million
2,400 million
Pipelines / CUDA cores
1120
512
Power consumption (TDP)
300 Watt
15 Watt
Texture fill rate
50.40
51.20
Memory type
GDDR5
LPDDR5
Maximum RAM amount
1 GB
16 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4200 MHz
5.5 GB/s
Memory bandwidth
134.4 GB/s
88 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-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