Radeon HD 8990 OEM and Radeon RX 7900 XTX - video card comparison

Radeon HD 8990 OEM

Radeon RX 7900 XTX

Architecture

GCN 1.0 (2012−2020)

RDNA 3

GPU code name

Malta

Navi 31 XTX

Market segment

Desktop

Release date

April 2013

November 2022

Interface

PCIe 3.0 x16

PCIe 4.0 x16

Supplementary power connectors

2x 8-pin

Boost clock speed

1000 MHz

2270 MHz

Core clock speed

950 MHz

Floating-point performance

2x 4,096 gflops

Manufacturing process technology

28 nm

5 nm

Number of transistors

4,313 million

57,700 million

Pipelines / CUDA cores

2048

6144

Power consumption (TDP)

375 Watt

355 Watt

Texture fill rate

128.0

959.6

Memory type

GDDR5

GDDR6

Maximum RAM amount

3 GB

24 GB

Memory bus width

384 Bit

Memory clock speed

6000 MHz

20000 MHz

Memory bandwidth

288.0 GB/s

960.0 GB/s

Shared memory

Display Connectors

1x DVI, 4x mini-DisplayPort

1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C

HDMI

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenCL

1.2

2.1

OpenGL

4.6

Shader Model

5.1

6.7

Vulkan

1.2.131

1.3