Radeon Steam Deck 8CU vs ATI X850 XT

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Primary details

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

Place in the ranking1381not rated
Place by popularitynot in top-100not in top-100
Power efficiency0.21no data
ArchitectureR400 (2004−2008)RDNA 2 (2022−2023)
GPU code nameR480RDNA 2 Sephiroth
Market segmentDesktopLaptop
Release date1 December 2004 (19 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 coresno data512
Core clock speed520 MHzno data
Boost clock speedno data1900 MHz
Number of transistors160 millionno data
Manufacturing process technology130 nm6 nm
Power consumption (TDP)69 Wattno data
Texture fill rate8.320no data
ROPs16no data
TMUs16no 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).

InterfacePCIe 1.0 x16no data
Width2-slotno data
Supplementary power connectors1x 6-pinno 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 typeGDDR3no data
Maximum RAM amount256 MBno data
Memory bus width256 Bitno data
Memory clock speed540 MHzno data
Memory bandwidth34.56 GB/sno 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 Connectors2x DVI, 1x S-Videono data

API compatibility

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

DirectX9.0b (9_2)12_1
OpenGL2.0no data
OpenCLN/Ano data
VulkanN/A-

Pros & cons summary


Recency 1 December 2004 9 November 2023
Chip lithography 130 nm 6 nm

Steam Deck 8CU has an age advantage of 18 years, and a 2066.7% more advanced lithography process.

We couldn't decide between Radeon X850 XT and Radeon Steam Deck 8CU. We've got no test results to judge.

Be aware that Radeon X850 XT is a desktop card while Radeon Steam Deck 8CU is a notebook one.


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

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ATI Radeon X850 XT
Radeon X850 XT
AMD Radeon Steam Deck 8CU
Radeon Steam Deck 8CU

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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3.3 12 votes

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5 2 votes

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Questions & comments

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