Steam Deck OLED GPU vs Radeon 780M

Primary details

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

Place in the ranking	297	not rated
Place by popularity	47	not in top-100
Power efficiency	84.40	no data
Architecture	RDNA 3.0 (2022−2024)	RDNA 2.0 (2020−2024)
GPU code name	Phoenix	Sephiroth
Market segment	Desktop	Desktop
Release date	6 December 2023 (less than a year 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	768	512
Core clock speed	800 MHz	1000 MHz
Boost clock speed	2700 MHz	1600 MHz
Number of transistors	25,390 million	2,400 million
Manufacturing process technology	4 nm	6 nm
Power consumption (TDP)	15 Watt	15 Watt
Texture fill rate	129.6	51.20
Floating-point processing power	8.294 TFLOPS	1.638 TFLOPS
ROPs	32	16
TMUs	48	32
Ray Tracing Cores	12	8

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 4.0 x8	no data
Length	no data	298 mm
Width	IGP	no data
Supplementary power connectors	None	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	System Shared	LPDDR5
Maximum RAM amount	System Shared	16 GB
Memory bus width	System Shared	128 Bit
Memory clock speed	System Shared	1375 MHz
Memory bandwidth	no data	88 GB/s
Shared memory	+	no data

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

Portable Device Dependent

1x USB Type-C

API compatibility

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

DirectX	12 Ultimate (12_2)	12 (12_1)
Shader Model	6.7	6.5
OpenGL	4.6	4.6
OpenCL	2.1	2.0
Vulkan	1.3	1.2

Pros & cons summary

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Chip lithography

4 nm

6 nm

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