Radeon HD 3830 and CMP 40HX - video card comparison

Radeon HD 3830

CMP 40HX

Architecture

TeraScale (2005−2013)

Turing (2018−2021)

GPU code name

RV670

TU106

Market segment

Desktop

Desktop

Release date

April 2008

February 2021

Interface

PCIe 2.0 x16

PCIe 3.0 x16

Supplementary power connectors

1x 6-pin

1x 8-pin

Boost clock speed

-

1650 MHz

Core clock speed

668 MHz

-

Floating-point performance

427.5 gflops

-

Manufacturing process technology

55 nm

12 nm

Number of transistors

666 million

10,800 million

Pipelines / CUDA cores

320

2304

Power consumption (TDP)

75 Watt

185 Watt

Texture fill rate

10.69

237.6

Memory type

GDDR3

GDDR6

Maximum RAM amount

256 MB

8 GB

Memory bus width

128 Bit

256 Bit

Memory clock speed

1656 MHz

14 GB/s

Memory bandwidth

26.5 GB/s

448.0 GB/s

Display Connectors

No outputs

No outputs

DirectX

10.1 (10_1)

12 Ultimate (12_2)

CUDA

-

7.5

OpenCL

N/A

3.0

OpenGL

3.3

4.6

Shader Model

4.1

6.6

Vulkan

N/A

1.2