Radeon HD 7770 and Radeon X1900 XT - video card comparison

Radeon HD 7770

Radeon X1900 XT

Architecture

GCN (2011−2017)

R500 (2005−2007)

GPU code name

Cape Verde

R580

Market segment

Desktop

Release date

February 2012

January 2006

Interface

PCIe 3.0 x16

PCIe 1.0 x16

Supplementary power connectors

1x 6-pin

Core clock speed

1000 MHz

625 MHz

Manufacturing process technology

28 nm

90 nm

Number of transistors

1,500 million

384 million

Pipelines / CUDA cores

640

Power consumption (TDP)

80 Watt

100 Watt

Texture fill rate

40.00

10.00

Memory type

GDDR5

GDDR3

Maximum RAM amount

2 GB

256 MB

Memory bus width

128 Bit

256 Bit

Memory clock speed

4500 MHz

1450 MBps

Memory bandwidth

72 GB/s

46.4 GB/s

Shared memory

Display Connectors

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

2x DVI, 1x S-Video

Eyefinity

HDMI

DirectX

12 (11_1)

9.0c (9_3)

OpenCL

1.2

N/A

OpenGL

4.6

2.1 (full) Shader Model5.13.0

Vulkan

1.2.131

N/A