Radeon X1900 XTX and GeForce 8400 GS - video card comparison

Radeon X1900 XTX

GeForce 8400 GS

Architecture

R500 (2005−2007)

Tesla (2006−2010)

GPU code name

R580

G86

Market segment

Desktop

Release date

January 2006

April 2007

Interface

PCIe 1.0 x16

Supplementary power connectors

1x 6-pin

None

SLI options

Core clock speed

650 MHz

459 MHz

Floating-point performance

29.376 gflops

Manufacturing process technology

90 nm

80 nm

Number of transistors

384 million

210 million

Pipelines / CUDA cores

Power consumption (TDP)

135 Watt

40 Watt

Texture fill rate

10.40

3.6 billion/sec

Memory type

GDDR3

DDR2

Maximum RAM amount

512 MB

256 MB

Memory bus width

256 Bit

64 Bit

Memory clock speed

1550 MBps

800 MHz

Memory bandwidth

49.6 GB/s

6.4 GB/s

Standard memory config per GPU

256 MB

Display Connectors

2x DVI, 1x S-Video

1x DVI, 1x VGA, 1x S-Video

DirectX

9.0c (9_3)

11.1 (10_0)

CUDA

1.1

OpenCL

N/A

1.1

OpenGL

2.1 (full) Shader Model

3.04.0

Vulkan

N/A