Radeon HD 3850 and GeForce GTX 275 PhysX Edition - video card comparison
Radeon HD 3850
GeForce GTX 275 PhysX Edition
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
RV670
GT200B
Market segment
Desktop
Desktop
Release date
November 2007
February 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Core clock speed
668 MHz
633 MHz
Floating-point performance
427.5 gflops
622.1 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
1,400 million
Pipelines / CUDA cores
320
240
Power consumption (TDP)
75 Watt
219 Watt
Texture fill rate
10.69
50.64
Memory type
GDDR3
GDDR3
Maximum RAM amount
1 GB
896 MB
Memory bus width
256 Bit
448 Bit
Memory clock speed
1660 MHz
2268 MHz
Memory bandwidth
53.12 GB/s
127.0 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI
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