Radeon HD 3850 and GeForce RTX 4070 Mobile - video card comparison

Radeon HD 3850

GeForce RTX 4070 Mobile

Architecture

TeraScale (2005−2013)

Ada Lovelace

GPU code name

RV670

GN21-X6

Market segment

Desktop

Laptop

Release date

November 2007

January 2023

Interface

PCIe 2.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 6-pin

Boost clock speed

2175 MHz

Core clock speed

668 MHz

1605 MHz

Floating-point performance

427.5 gflops

Manufacturing process technology

55 nm

5 nm

Number of transistors

666 million

Pipelines / CUDA cores

320

4608

Power consumption (TDP)

75 Watt

115 Watt (35 - 115 Watt TGP)

Texture fill rate

10.69

244.1

Memory type

GDDR3

GDDR6

Maximum RAM amount

1 GB

8 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

1660 MHz

16000 MHz

Memory bandwidth

53.12 GB/s

256.0 GB/s

Shared memory

Display Connectors

2x DVI, 1x S-Video

Portable Device Dependent

DirectX

10.1 (10_1)

12 Ultimate (12_2)

CUDA

8.9

OpenCL

N/A

3.0

OpenGL

3.3

4.6

Shader Model

4.1

6.7

Vulkan

N/A

1.3