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Radeon X1900 XT and GeForce 8800 GT Mac Edition - video card comparison


Radeon X1900 XT

GeForce 8800 GT Mac Edition


Architecture
R500 (2005−2007)
Tesla (2006−2010)

GPU code name
R580
G92

Market segment
Desktop
Desktop

Release date
January 2006
February 2008

Interface
PCIe 1.0 x16
PCIe 2.0 x16

Supplementary power connectors
1x 6-pin
1x 6-pin

Core clock speed
625 MHz
600 MHz

Floating-point performance
-
336.0 gflops

Manufacturing process technology
90 nm
65 nm

Number of transistors
384 million
754 million

Pipelines / CUDA cores
-
112

Power consumption (TDP)
100 Watt
125 Watt

Texture fill rate
10.00
33.60

Memory type
GDDR3
GDDR3

Maximum RAM amount
256 MB
512 MB

Memory bus width
256 Bit
256 Bit

Memory clock speed
1450 MBps
1800 MHz

Memory bandwidth
46.4 GB/s
57.6 GB/s

Display Connectors
2x DVI, 1x S-Video
2x DVI

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
N/A