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AMD Steam Deck OLED GPU

Graphics Processor
Sephiroth
Cores
512
TMUs
32
ROPs
16
Memory Size
16 GB
Memory Type
LPDDR5
Bus Width
128 bit
The Steam Deck OLED GPU is a gaming console graphics solution by AMD, launched on November 9th, 2023. Built on the 6 nm process, and based on the Sephiroth graphics processor, the device supports DirectX 12. The Sephiroth graphics processor is an average sized chip with a die area of 131 mm² and 2,400 million transistors. It features 512 shading units, 32 texture mapping units, and 16 ROPs. The card also has 8 raytracing acceleration cores. AMD includes 16 GB LPDDR5 memory, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 1000 MHz, which can be boosted up to 1600 MHz, memory is running at 1375 MHz.
Its power draw is rated at 15 W maximum. The console's dimensions are 298 mm x 117 mm x 49 mm, and it features a igp cooling solution.

Graphics Processor

GPU Name
Sephiroth
Architecture
RDNA 2.0
Foundry
TSMC
Process Size
6 nm
Transistors
2,400 million
Density
18.3M / mm²
Die Size
131 mm²

Graphics Card

Release Date
Nov 9th, 2023
Generation
Console GPU
(Valve)
Production
Active

Clock Speeds

Base Clock
1000 MHz
Boost Clock
1600 MHz
Memory Clock
1375 MHz
5.5 Gbps effective

Memory

Memory Size
16 GB
Memory Type
LPDDR5
Memory Bus
128 bit
Bandwidth
88.00 GB/s

Render Config

Shading Units
512
TMUs
32
ROPs
16
Compute Units
8
RT Cores
8
L0 Cache
32 KB per WGP
L1 Cache
128 KB per Array
L2 Cache
1024 KB
L3 Cache
8 MB

Theoretical Performance

Pixel Rate
25.60 GPixel/s
Texture Rate
51.20 GTexel/s
FP16 (half)
3.277 TFLOPS (2:1)
FP32 (float)
1.638 TFLOPS
FP64 (double)
102.4 GFLOPS (1:16)

Board Design

Length
298 mm
11.7 inches
Width
117 mm
4.6 inches
Height
49 mm
1.9 inches
Weight
669 g (1.475 lbs)
Base Storage
64 GB eMMC
Storage
256 GB / 512 GB NVMe SSD
TDP
15 W
Outputs
1x USB Type-C

Graphics Features

DirectX
12 (12_1)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.2
Shader Model
6.5

Console Notes

Cores: Zen 2 4C/8T
Base Clock: 2.4 GHz
Turbo Clock: 3.5 GHz
FP32: 448 GFLOPs

Sephiroth GPU Notes

Generation: Navi II
Ray Tracing Cores: 1st Gen
Infinity Cache: 1st Gen
Graphics/Compute: 10.3.1
Shader ISA: GFX10.3 (gfx1033)
Display Core Next: 3.0.1
Video Core Next: 3.1.0
System DMA: 5.2.1
Platform Security Processor: 11.5.0
May 3rd, 2024 00:06 EDT change timezone

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