AMD Radeon HD 6990M Crossfire vs AMD Radeon HD 6390

Comparative analysis of AMD Radeon HD 6990M Crossfire and AMD Radeon HD 6390 videocards for all known characteristics in the following categories: Essentials, Technical info, Compatibility, dimensions and requirements, API support, Memory, Video outputs and ports.

 

Differences

Reasons to consider the AMD Radeon HD 6990M Crossfire

  • Around 30% higher core clock speed: 715 MHz vs 550 MHz
  • 7x more pipelines: 2240 vs 320
  • 4x more maximum memory size: 2x2 GB vs 1 GB
Core clock speed 715 MHz vs 550 MHz
Pipelines 2240 vs 320
Maximum memory size 2x2 GB vs 1 GB

Reasons to consider the AMD Radeon HD 6390

  • Around 11% higher memory clock speed: 1000 MHz vs 900 MHz
Memory clock speed 1000 MHz vs 900 MHz

Compare specifications (specs)

AMD Radeon HD 6990M Crossfire AMD Radeon HD 6390

Essentials

Architecture Terascale 2 TeraScale 2
Code name Blackcomb XTX Redwood
Launch date 12 July 2011 4 July 2011
Place in performance rating not rated not rated
Type Laptop Desktop

Technical info

Core clock speed 715 MHz 550 MHz
Manufacturing process technology 40 nm 40 nm
Pipelines 2240 320
Transistor count 2x1700 Million 627 million
Floating-point performance 352.0 gflops
Texture fill rate 8.8 GTexel / s
Thermal Design Power (TDP) 39 Watt

Compatibility, dimensions and requirements

Laptop size large
Interface PCIe 2.0 x16
Length 165 mm
Supplementary power connectors None

API support

DirectX 11 11.2 (11_0)
OpenGL 4.4

Memory

Maximum RAM amount 2x2 GB 1 GB
Memory bus width 256 Bit 128 Bit
Memory clock speed 900 MHz 1000 MHz
Memory type GDDR5 DDR2
Shared memory 0
Memory bandwidth 16 GB / s

Video outputs and ports

Display Connectors 1x DVI, 1x HDMI, 1x VGA

Navigation

Choose a GPU

Compare videocards

Compare AMD Radeon HD 6990M Crossfire with others

AMD Radeon HD 6990M Crossfire AMD
Radeon HD 6990M Crossfire
vs AMD Radeon HD 6390 AMD
Radeon HD 6390
AMD Radeon HD 6990M Crossfire AMD
Radeon HD 6990M Crossfire
vs AMD Radeon HD 6870 X2 AMD
Radeon HD 6870 X2
AMD Radeon HD 6990M Crossfire AMD
Radeon HD 6990M Crossfire
vs AMD Radeon HD 6990M Rebrand AMD
Radeon HD 6990M Rebrand