Radeon HD 3750 and Radeon HD 3870 - video card comparison
Radeon HD 3750
Radeon HD 3870
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV635
RV670
Market segment
Desktop
Desktop
Release date
September 2008
November 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
796 MHz
777 MHz
Floating-point performance
191.04 gflops
497.3 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
378 million
666 million
Pipelines / CUDA cores
120
320
Power consumption (TDP)
65 Watt
106 Watt
Texture fill rate
6.368
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1386 MHz
2252 MHz
Memory bandwidth
22.18 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