Radeon HD 3850 X2 and GeForce GTX 260 OEM - video card comparison
Radeon HD 3850 X2
GeForce GTX 260 OEM
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
RV670
GT200B
Market segment
Desktop
Desktop
Release date
April 2008
December 2009
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
2x 6-pin
Core clock speed
669 MHz
518 MHz
Floating-point performance
2x 428.2 gflops
414.7 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
1,400 million
Pipelines / CUDA cores
320
192
Power consumption (TDP)
140 Watt
182 Watt
Texture fill rate
10.70
33.15
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
1792 MB
Memory bus width
256 Bit
448 Bit
Memory clock speed
1656 MHz
2016 MHz
Memory bandwidth
52.99 GB/s
112.9 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