Radeon HD 6490M and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon HD 6490M vs Radeon HD 3870
Radeon HD 6490M
388
Radeon HD 3870
572
Radeon HD 6490M
Radeon HD 3870
Architecture
Terascale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Seymour XT
RV670
Market segment
Laptop
Desktop
Release date
January 2011
November 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
Core clock speed
700 / 750 / 800 MHz
777 MHz
Floating-point performance
256 gflops
497.3 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
370 million
666 million
Pipelines / CUDA cores
160
320
Power consumption (TDP)
-
106 Watt
Texture fill rate
6.400
12.43
Memory type
DDR3/GDDR5
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
2252 MHz
Memory bandwidth
25.6 GB/s
72.06 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
11.2 (11_0)
10.1 (10_1)
OpenCL
1.2
N/A
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
N/A
N/A