Radeon HD 4770 and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon HD 4770 vs Radeon HD 3870
Radeon HD 4770
935
Radeon HD 3870
572
Radeon HD 4770
Radeon HD 3870
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV740
RV670
Market segment
Desktop
Desktop
Release date
April 2009
November 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
750 MHz
777 MHz
Floating-point performance
960.0 gflops
497.3 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
826 million
666 million
Pipelines / CUDA cores
640
320
Power consumption (TDP)
80 Watt
106 Watt
Texture fill rate
24.00
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
3200 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
10.1 (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