AMD Radeon HD 6990M Rebrand vs AMD Radeon HD 6390

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

 

Differences

Reasons to consider the AMD Radeon HD 6990M Rebrand

  • Around 45% higher core clock speed: 800 MHz vs 550 MHz
  • 3.6x more texture fill rate: 32.0 GTexel / s vs 8.8 GTexel / s
  • 2.5x more pipelines: 800 vs 320
  • 3.6x better floating-point performance: 1,280.0 gflops vs 352.0 gflops
  • 4.4x more memory clock speed: 4400 MHz vs 1000 MHz
Core clock speed 800 MHz vs 550 MHz
Texture fill rate 32.0 GTexel / s vs 8.8 GTexel / s
Pipelines 800 vs 320
Floating-point performance 1,280.0 gflops vs 352.0 gflops
Memory clock speed 4400 MHz vs 1000 MHz

Reasons to consider the AMD Radeon HD 6390

  • 2.6x lower typical power consumption: 39 Watt vs 100 Watt
Thermal Design Power (TDP) 39 Watt vs 100 Watt

Compare specifications (specs)

AMD Radeon HD 6990M Rebrand AMD Radeon HD 6390

Essentials

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

Technical info

Core clock speed 800 MHz 550 MHz
Floating-point performance 1,280.0 gflops 352.0 gflops
Manufacturing process technology 40 nm 40 nm
Pipelines 800 320
Texture fill rate 32.0 GTexel / s 8.8 GTexel / s
Thermal Design Power (TDP) 100 Watt 39 Watt
Transistor count 1,040 million 627 million

Video outputs and ports

Display Connectors No outputs 1x DVI, 1x HDMI, 1x VGA

Compatibility, dimensions and requirements

Interface MXM-B (3.0) PCIe 2.0 x16
Length 165 mm
Supplementary power connectors None

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 70.4 GB / s 16 GB / s
Memory bus width 128 Bit 128 Bit
Memory clock speed 4400 MHz 1000 MHz
Memory type GDDR5 DDR2

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