AMD Radeon HD 6830M vs AMD Radeon HD 6870M

Comparative analysis of AMD Radeon HD 6830M and AMD Radeon HD 6870M videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies.

AMD Radeon HD 6830M

AMD Radeon HD 6870M

Differences

Reasons to consider the AMD Radeon HD 6830M

Around 28% lower typical power consumption: 39 Watt vs 50 Watt

Thermal Design Power (TDP)	39 Watt vs 50 Watt

Reasons to consider the AMD Radeon HD 6870M

Around 17% higher core clock speed: 675 MHz vs 575 MHz
Around 17% higher texture fill rate: 27 GTexel / s vs 23 GTexel / s
Around 17% better floating-point performance: 1,080.0 gflops vs 920.0 gflops
2.5x more memory clock speed: 4000 MHz vs 1600 MHz

Core clock speed	675 MHz vs 575 MHz
Texture fill rate	27 GTexel / s vs 23 GTexel / s
Floating-point performance	1,080.0 gflops vs 920.0 gflops
Memory clock speed	4000 MHz vs 1600 MHz

Compare specifications (specs)

	AMD Radeon HD 6830M	AMD Radeon HD 6870M
Essentials
Architecture	TeraScale 2	TeraScale 2
Code name	Granville	Granville
Launch date	4 January 2011	4 January 2011
Place in performance rating	not rated	not rated
Type	Laptop	Laptop
Technical info
Core clock speed	575 MHz	675 MHz
Floating-point performance	920.0 gflops	1,080.0 gflops
Manufacturing process technology	40 nm	40 nm
Pipelines	800	800
Texture fill rate	23 GTexel / s	27 GTexel / s
Thermal Design Power (TDP)	39 Watt	50 Watt
Transistor count	1,040 million	1,040 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	MXM-B (3.0)
Laptop size	large	large
API support
DirectX	11.2 (11_0)	11.2 (11_0)
OpenGL	4.4	4.4
Memory
Maximum RAM amount	1 GB	1 GB
Memory bandwidth	25.6 GB / s	64.0 GB / s
Memory bus width	128 Bit	128 Bit
Memory clock speed	1600 MHz	4000 MHz
Memory type	DDR3, GDDR3	DDR3, GDDR3, GDDR5
Shared memory	0	0
Technologies
HDMI 1.3a