Radeon HD 4850 and RTX A40 - video card comparison

Radeon HD 4850

RTX A40

Architecture

Terascale 1 (2008−2010)

Ampere (2020−2022)

GPU code name

RV770

GA102

Market segment

Desktop

Desktop

Release date

June 2008

October 2020

Interface

PCIe 2.0 x16

PCIe 4.0 x16

Supplementary power connectors

1x 6-pin

8-pin EPS

Boost clock speed

-

1755 MHz

Core clock speed

625 MHz

-

Floating-point performance

1,000.0 gflops

-

Manufacturing process technology

55 nm

8 nm

Number of transistors

956 million

28,300 million

Pipelines / CUDA cores

800

10752

Power consumption (TDP)

110 Watt

300 Watt

Texture fill rate

25.00

589.7

Memory type

GDDR3

GDDR6

Maximum RAM amount

512 MB

48 GB

Memory bus width

256 Bit

384 Bit

Memory clock speed

993 MHz

14.5 GB/s

Memory bandwidth

63.55 GB/s

695.8 GB/s

Display Connectors

2x DVI, 1x S-Video

3x DisplayPort

DirectX

10.1 (10_1)

12 Ultimate (12_2)

CUDA

-

8.6

OpenCL

1.1

2.0

OpenGL

3.3

4.6

Shader Model

4.1

6.5

Vulkan

N/A

1.2