Radeon R9 255 OEM and Radeon Sky 700 - video card comparison
Radeon R9 255 OEM
Radeon Sky 700
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Cape Verde
Tahiti
Market segment
Desktop
Desktop
Release date
December 2013
March 2013
Bus support
-
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
1x 8-pin
Boost clock speed
930 MHz
-
Core clock speed
900 MHz
900 MHz
Floating-point performance
952.3 gflops
3,226 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
4,313 million
Pipelines / CUDA cores
512
1792
Power consumption (TDP)
65 Watt
225 Watt
Texture fill rate
29.76
100.8
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
6 GB
Memory bus width
128 Bit
384 Bit
Memory clock speed
4600 MHz
5500 MHz
Memory bandwidth
73.6 GB/s
176 GB/s
Display Connectors
No outputs
1x DisplayPort
DisplayPort count
-
1
Dual-link DVI support
-
1
DirectX
12 (11_1)
12 (11_1)
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
1.2.131