Radeon HD 5770 and Radeon R9 255 OEM - video card comparison
Radeon HD 5770
Radeon R9 255 OEM
Architecture
Terascale 2 (2009−2015)
GCN 1.0 (2012−2020)
GPU code name
Juniper
Cape Verde
Market segment
Desktop
Desktop
Release date
October 2009
December 2013
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Boost clock speed
-
930 MHz
Core clock speed
850 MHz
900 MHz
Floating-point performance
1,360.0 gflops
952.3 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,040 million
1,500 million
Pipelines / CUDA cores
800
512
Power consumption (TDP)
108 Watt
65 Watt
Texture fill rate
34.00
29.76
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4800 MHz
4600 MHz
Memory bandwidth
76.8 GB/s
73.6 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
11.2 (11_0)
12 (11_1)
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.2.131