Radeon R9 255 OEM and Radeon DDR - video card comparison
Radeon R9 255 OEM
Radeon DDR
Architecture
GCN 1.0 (2012−2020)
Rage 6 (2000−2007)
GPU code name
Cape Verde
Rage 6
Market segment
Desktop
Desktop
Release date
December 2013
April 2000
Interface
PCIe 3.0 x16
AGP 4x
Supplementary power connectors
1x 6-pin
None
Boost clock speed
930 MHz
-
Core clock speed
900 MHz
166 MHz
Floating-point performance
952.3 gflops
-
Manufacturing process technology
28 nm
180 nm
Number of transistors
1,500 million
30 million
Pipelines / CUDA cores
512
-
Power consumption (TDP)
65 Watt
23 Watt
Texture fill rate
29.76
1
Memory type
GDDR5
DDR
Maximum RAM amount
2 GB
32 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4600 MHz
332 MHz
Memory bandwidth
73.6 GB/s
5.312 GB/s
Display Connectors
No outputs
1x VGA
DirectX
12 (11_1)
7.0
OpenCL
1.2
N/A
OpenGL
4.6
1.3
Shader Model
5.1
-
Vulkan
1.2.131
N/A