Radeon HD 4770 and GeForce GTX 260 Rev. 2 - video card comparison
Radeon HD 4770
GeForce GTX 260 Rev. 2
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
RV740
GT200B
Market segment
Desktop
Desktop
Release date
April 2009
July 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
2x 6-pin
Core clock speed
750 MHz
576 MHz
Floating-point performance
960.0 gflops
476.9 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
826 million
1,400 million
Pipelines / CUDA cores
640
192
Power consumption (TDP)
80 Watt
182 Watt
Texture fill rate
24.00
36.86
Memory type
GDDR5
GDDR3
Maximum RAM amount
512 MB
896 MB
Memory bus width
128 Bit
448 Bit
Memory clock speed
3200 MHz
1998 MHz
Memory bandwidth
51.2 GB/s
111.9 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
11.1 (10_0)
CUDA
-
1.3
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.0
Vulkan
N/A
N/A