Radeon HD 5850 and Radeon HD 4580 - video card comparison
Radeon HD 5850
Radeon HD 4580
Architecture
Terascale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Cypress
RV635
Market segment
Desktop
Desktop
Release date
September 2009
November 2011
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
Core clock speed
725 MHz
796 MHz
Floating-point performance
2,088.0 gflops
191.04 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
2,154 million
378 million
Pipelines / CUDA cores
1440
120
Power consumption (TDP)
151 Watt
65 Watt
Texture fill rate
52.20
6.368
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
2000 MHz
1386 MHz
Memory bandwidth
128.0 GB/s
22.18 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
11.2 (11_0)
10.1 (10_1)
OpenCL
1.2
N/A
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
N/A
N/A