Radeon Steam Deck 8CU vs R9 285X

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 3.0 (2014−2019)	RDNA 2 (2022−2023)
GPU code name	Tonga	RDNA 2 Sephiroth
Market segment	Desktop	Laptop
Release date	no data (2024 years ago)	9 November 2023 (1 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	2048	512
Core clock speed	1002 MHz	no data
Boost clock speed	no data	1900 MHz
Number of transistors	5,000 million	no data
Manufacturing process technology	28 nm	6 nm
Power consumption (TDP)	200 Watt	no data
Texture fill rate	128.3	no data
Floating-point processing power	4.104 TFLOPS	no data
ROPs	32	no data
TMUs	128	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).

Interface	PCIe 3.0 x16	no data
Length	267 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin + 1x 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	3 GB	no data
Memory bus width	384 Bit	no data
Memory clock speed	1375 MHz	no data
Memory bandwidth	264.0 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	2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2	no data
HDMI	+	-

API compatibility

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

DirectX	12 (12_0)	12_1
Shader Model	6.5	no data
OpenGL	4.6	no data
OpenCL	2.1	no data
Vulkan	1.2.170	-

Pros & cons summary

---

Chip lithography

28 nm

6 nm

---

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

---