Radeon HD 4850 and Radeon HD 4750 - video card comparison
Radeon HD 4850
Radeon HD 4750
Architecture
Terascale 1 (2008−2010)
TeraScale (2005−2013)
GPU code name
RV770
RV740
Market segment
Desktop
Desktop
Release date
June 2008
September 2009
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
625 MHz
730 MHz
Floating-point performance
1,000.0 gflops
934.4 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
956 million
826 million
Pipelines / CUDA cores
800
640
Power consumption (TDP)
110 Watt
100 Watt
Texture fill rate
25.00
23.36
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
993 MHz
3200 MHz
Memory bandwidth
63.55 GB/s
51.2 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A