Radeon R9 255 OEM and Radeon R7 240 OEM - video card comparison
Radeon R9 255 OEM
Radeon R7 240 OEM
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Cape Verde
Oland
Market segment
Desktop
Desktop
Release date
December 2013
November 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
930 MHz
780 MHz
Core clock speed
900 MHz
730 MHz
Floating-point performance
952.3 gflops
499.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
950 million
Pipelines / CUDA cores
512
320
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
29.76
15.60
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4600 MHz
1800 MHz
Memory bandwidth
73.6 GB/s
28.8 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
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