Radeon Steam Deck 8CU vs Sky 900

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	GCN 1.0 (2011−2020)	RDNA 2 (2022−2023)
GPU code name	Tahiti	RDNA 2 Sephiroth
Market segment	Workstation	Laptop
Release date	27 March 2013 (11 years ago)	9 November 2023 (less than a year ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	3584	512
Core clock speed	825 MHz	no data
Boost clock speed	950 MHz	1900 MHz
Number of transistors	4,313 million	no data
Manufacturing process technology	28 nm	6 nm
Power consumption (TDP)	300 Watt	no data
Texture fill rate	106.4	no data
Floating-point processing power	3.405 TFLOPS	no data
ROPs	32	no data
TMUs	112	no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus support	PCIe 3.0	no data
Interface	PCIe 3.0 x16	no data
Length	305 mm	no data
Width	2-slot	no data
Form factor	full height / full length	no data
Supplementary power connectors	2x 8-pin	no data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR5	no data
Maximum RAM amount	6 GB	no data
Memory bus width	384 Bit	no data
Memory clock speed	1250 MHz	no data
Memory bandwidth	480 GB/s	no data
Shared memory	-	-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	1x DVI, 1x mini-DisplayPort	no data
Dual-link DVI support	+	-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_1)	12_1
Shader Model	5.1	no data
OpenGL	4.6	no data
OpenCL	1.2	no data
Vulkan	1.2.131	-

Pros & cons summary

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Recency	27 March 2013	9 November 2023
Chip lithography	28 nm	6 nm

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