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.

 

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

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