Radeon X1900 XT and Radeon 780M - video card comparison

Radeon X1900 XT

Radeon 780M

Architecture

R500 (2005−2007)

RDNA 3

GPU code name

R580

Phoenix

Market segment

Desktop

Laptop

Release date

January 2006

January 2023

Interface

PCIe 1.0 x16

PCIe 4.0 x8

Supplementary power connectors

1x 6-pin

None

Boost clock speed

-

3000 MHz

Core clock speed

625 MHz

1500 MHz

Manufacturing process technology

90 nm

4 nm

Number of transistors

384 million

25,390 million

Pipelines / CUDA cores

-

768

Power consumption (TDP)

100 Watt

54 Watt (35 - 54 Watt TGP)

Texture fill rate

10.00

139.2

Memory type

GDDR3

System Shared

Maximum RAM amount

256 MB

System Shared

Memory bus width

256 Bit

System Shared

Memory clock speed

1450 MBps

System Shared

Memory bandwidth

46.4 GB/s

-

Shared memory

-

+

Display Connectors

2x DVI, 1x S-Video

Portable Device Dependent

DirectX

9.0c (9_3)

12 Ultimate (12_2)

OpenCL

N/A

2.1

OpenGL

2.1 (full) Shader Model

3.06.7

Vulkan

N/A

1.3