Radeon HD 2900 PRO and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon HD 2900 PRO vs Radeon HD 3870
Radeon HD 2900 PRO
646
Radeon HD 3870
572
Radeon HD 2900 PRO
Radeon HD 3870
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
R600
RV670
Market segment
Desktop
Desktop
Release date
December 2007
November 2007
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 8-pin
1x 6-pin
Core clock speed
600 MHz
777 MHz
Floating-point performance
384.0 gflops
497.3 gflops
Manufacturing process technology
80 nm
55 nm
Number of transistors
720 million
666 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
200 Watt
106 Watt
Texture fill rate
9.600
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1600 MHz
2252 MHz
Memory bandwidth
51.2 GB/s
72.06 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.0 (10_0)
10.1 (10_1)
OpenCL
N/A
N/A
OpenGL
3.3
3.3
Shader Model
4.0
4.1
Vulkan
N/A
N/A