Radeon HD 8870 OEM and Radeon 780M - video card comparison

Radeon HD 8870 OEM

Radeon 780M

Architecture

GCN 1.0 (2012−2020)

RDNA 3

GPU code name

Pitcairn

Phoenix

Market segment

Desktop

Laptop

Release date

January 2013

January 2023

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

2x 6-pin

None

Boost clock speed

-

3000 MHz

Core clock speed

1000 MHz

1500 MHz

Floating-point performance

2,560 gflops

-

Manufacturing process technology

28 nm

4 nm

Number of transistors

2,800 million

25,390 million

Pipelines / CUDA cores

1280

768

Power consumption (TDP)

175 Watt

54 Watt (35 - 54 Watt TGP)

Texture fill rate

80.00

139.2

Memory type

GDDR5

System Shared

Maximum RAM amount

2 GB

System Shared

Memory bus width

256 Bit

System Shared

Memory clock speed

4800 MHz

System Shared

Memory bandwidth

153.6 GB/s

-

Shared memory

-

+

Display Connectors

1x DVI, 1x HDMI, 2x mini-DisplayPort

Portable Device Dependent

HDMI

+

-

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenCL

1.2

2.1

OpenGL

4.6

4.6

Shader Model

5.1

6.7

Vulkan

1.2.131

1.3