Radeon HD 3870 X2 and Radeon HD 4850 - video card comparison
Passmark - benchmark score Radeon HD 3870 X2 vs Radeon HD 4850
Radeon HD 3870 X2
729
Radeon HD 4850
1057
Radeon HD 3870 X2
Radeon HD 4850
Architecture
TeraScale (2005−2013)
Terascale 1 (2008−2010)
GPU code name
R680
RV770
Market segment
Desktop
Desktop
Release date
January 2008
June 2008
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
625 MHz
Floating-point performance
2x 528.0 gflops
1,000.0 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
956 million
Pipelines / CUDA cores
320
800
Power consumption (TDP)
165 Watt
110 Watt
Texture fill rate
13.20
25.00
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1802 MHz
993 MHz
Memory bandwidth
57.66 GB/s
63.55 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
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A