Radeon R9 255 OEM and Radeon HD 2600 PRO - video card comparison
Radeon R9 255 OEM
Radeon HD 2600 PRO
Architecture
GCN 1.0 (2012−2020)
TeraScale (2005−2013)
GPU code name
Cape Verde
RV630
Market segment
Desktop
Desktop
Release date
December 2013
June 2007
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
930 MHz
-
Core clock speed
900 MHz
600 MHz
Floating-point performance
952.3 gflops
144 gflops
Manufacturing process technology
28 nm
65 nm
Number of transistors
1,500 million
390 million
Pipelines / CUDA cores
512
120
Power consumption (TDP)
65 Watt
35 Watt
Texture fill rate
29.76
4.800
Memory type
GDDR5
DDR2
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4600 MHz
1000 MHz
Memory bandwidth
73.6 GB/s
16 GB/s
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (11_1)
10.0 (10_0)
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.2.131
N/A