Radeon HD 3850 and GeForce GTS 450 OEM - video card comparison
Radeon HD 3850
GeForce GTS 450 OEM
Architecture
TeraScale (2005−2013)
Fermi (2010−2014)
GPU code name
RV670
GF106
Market segment
Desktop
Desktop
Release date
November 2007
October 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
668 MHz
790 MHz
Floating-point performance
427.5 gflops
455.0 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
666 million
1,170 million
Pipelines / CUDA cores
320
144
Power consumption (TDP)
75 Watt
106 Watt
Texture fill rate
10.69
18.96
Memory type
GDDR3
GDDR5
Maximum RAM amount
1 GB
1536 MB
Memory bus width
256 Bit
192 Bit
Memory clock speed
1660 MHz
4000 MHz
Memory bandwidth
53.12 GB/s
96 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x mini-HDMI
HDMI
-
+
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
2.1
OpenCL
N/A
1.1
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A