Radeon HD 8990 OEM and Radeon 780M - video card comparison

Radeon HD 8990 OEM

Radeon 780M

Architecture

GCN 1.0 (2012−2020)

RDNA 3

GPU code name

Malta

Phoenix

Market segment

Desktop

Laptop

Release date

April 2013

January 2023

Interface

PCIe 3.0 x16

PCIe 4.0 x8

Supplementary power connectors

2x 8-pin

None

Boost clock speed

1000 MHz

3000 MHz

Core clock speed

950 MHz

1500 MHz

Floating-point performance

2x 4,096 gflops

-

Manufacturing process technology

28 nm

4 nm

Number of transistors

4,313 million

25,390 million

Pipelines / CUDA cores

2048

768

Power consumption (TDP)

375 Watt

54 Watt (35 - 54 Watt TGP)

Texture fill rate

128.0

139.2

Memory type

GDDR5

System Shared

Maximum RAM amount

3 GB

System Shared

Memory bus width

384 Bit

System Shared

Memory clock speed

6000 MHz

System Shared

Memory bandwidth

288.0 GB/s

-

Shared memory

-

+

Display Connectors

1x DVI, 4x mini-DisplayPort

Portable Device Dependent

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