Radeon HD 3870 X2 and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon HD 3870 X2 vs Radeon HD 3870
Radeon HD 3870 X2
729
Radeon HD 3870
572
Radeon HD 3870 X2
Radeon HD 3870
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
R680
RV670
Market segment
Desktop
Desktop
Release date
January 2008
November 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Core clock speed
825 MHz
777 MHz
Floating-point performance
2x 528.0 gflops
497.3 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
666 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
165 Watt
106 Watt
Texture fill rate
13.20
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1802 MHz
2252 MHz
Memory bandwidth
57.66 GB/s
72.06 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
N/A
N/A
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A