Mobility Radeon HD 3850 and GeForce 7900 GT - video card comparison
Mobility Radeon HD 3850
GeForce 7900 GT
Architecture
RV6xx (2007−2010)
Curie (2003−2013)
GPU code name
M88
G71
Market segment
Laptop
Desktop
Release date
December 2007
March 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Core clock speed
580 MHz
450 MHz
Floating-point performance
371.2 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
666 million
278 million
Pipelines / CUDA cores
320
-
Power consumption (TDP)
55 Watt
48 Watt
Texture fill rate
9.280
10.80
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
750 MHz
1320 MHz
Memory bandwidth
48 GB/s
42.24 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
9.0c (9_3)
OpenCL
N/A
N/A
OpenGL
3.3
2.1
Shader Model
4.1
3.0
Vulkan
N/A
N/A