Radeon HD 3870 and GeForce GTX 260 Rev. 2 - video card comparison
Radeon HD 3870
GeForce GTX 260 Rev. 2
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
RV670
GT200B
Market segment
Desktop
Desktop
Release date
November 2007
July 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
2x 6-pin
Core clock speed
777 MHz
576 MHz
Floating-point performance
497.3 gflops
476.9 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
1,400 million
Pipelines / CUDA cores
320
192
Power consumption (TDP)
106 Watt
182 Watt
Texture fill rate
12.43
36.86
Memory type
GDDR4
GDDR3
Maximum RAM amount
512 MB
896 MB
Memory bus width
256 Bit
448 Bit
Memory clock speed
2252 MHz
1998 MHz
Memory bandwidth
72.06 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
N/A
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.0
Vulkan
N/A
N/A