Radeon HD 4860 and Radeon HD 3870 - video card comparison
Radeon HD 4860
Radeon HD 3870
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV790
RV670
Market segment
Desktop
Desktop
Release date
September 2009
November 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Core clock speed
700 MHz
777 MHz
Floating-point performance
896.0 gflops
497.3 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
959 million
666 million
Pipelines / CUDA cores
640
320
Power consumption (TDP)
130 Watt
106 Watt
Texture fill rate
22.40
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3000 MHz
2252 MHz
Memory bandwidth
96 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
1.1
N/A
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A