Radeon HD 3850 X2 and Radeon HD 2900 XT - video card comparison
Passmark - benchmark score Radeon HD 3850 X2 vs Radeon HD 2900 XT
Radeon HD 3850 X2
847
Radeon HD 2900 XT
679
Radeon HD 3850 X2
Radeon HD 2900 XT
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV670
R600
Market segment
Desktop
Desktop
Release date
April 2008
May 2007
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin + 1x 8-pin
Core clock speed
669 MHz
743 MHz
Floating-point performance
2x 428.2 gflops
475.5 gflops
Manufacturing process technology
55 nm
80 nm
Number of transistors
666 million
720 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
140 Watt
215 Watt
Texture fill rate
10.70
11.89
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
512 Bit
Memory clock speed
1656 MHz
1656 MHz
Memory bandwidth
52.99 GB/s
106.0 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
10.0 (10_0)
OpenCL
N/A
N/A
OpenGL
3.3
3.3
Shader Model
4.1
4.0
Vulkan
N/A
N/A