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NVIDIA GB205

NVIDIA's GB205 GPU uses the Blackwell 2.0 architecture at TSMC. GB205 supports DirectX 12 Ultimate (Feature Level 12_2). For GPU compute applications, OpenCL version 3.0 and CUDA 9.1 can be used. Additionally, the DirectX 12 Ultimate capability guarantees support for hardware-raytracing, variable-rate shading and more, in upcoming video games. It features 6400 shading units, 200 texture mapping units and 64 ROPs. Also included are 200 tensor cores which help improve the speed of machine learning applications. The GPU also contains 50 raytracing acceleration cores.
Further reading: Blackwell Architecture Whitepaper

Graphics Processor

Released
2025
GPU Name
GB205
Architecture
Blackwell 2.0
Foundry
TSMC
Process Type
4N FinFET
Process Size
0 nm
Transistors
unknown
Die Size
unknown

Graphics Features

DirectX
12 Ultimate (12_2)
OpenGL
4.6
OpenCL
3.0
Vulkan
1.3
CUDA
9.1
Shader Model
6.7
WDDM
3.1
Tensor Cores
5th Gen
RT Cores
4th Gen
NVENC
9th Gen
NVDEC
6th Gen
PureVideo HD
VP13
VDPAU
Feature Set M

Render Config

Shading Units
6400
TMUs
200
ROPs
64
SM Count
50
FP16 Units
6400
FP64 Units
200
INT32 Units
3200
Tensor Cores
200
RT Cores
50
SFUs
900
TPCs
25
GPCs
5
Tex L1 Cache
64 KB per SM
L1 Cache
128 KB per SM
L2 Cache
40960 KB
Max. TDP
220 W

All Blackwell 2.0 GPUs

NVIDIA GPU Architecture History

Graphics cards using the NVIDIA GB205 GPU

Name Chip Memory Shaders TMUs ROPs Base Clock Boost Clock Memory Clock
NVIDIA GeForce RTX 5070
GB205 12 GB 6400 200 64 2235 MHz 2520 MHz 2500 MHz

GB205 GPU Notes

Ray Tracing Cores: 4th Gen
Tensor Cores: 5th Gen
NVENC: 9th Gen
NVDEC: 6th Gen
PureVideo HD: VP13
VDPAU: Feature Set M

Latest Drivers:
Windows 10 / 11:
GeForce Release: Latest
Quadro Release: Latest
Data Center Release: Latest
Jun 29th, 2024 15:18 EDT change timezone

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