Radeon HD 6990M Crossfire vs Mobility Radeon HD 4870 X2

  AMD

Developer

  ATI

  Radeon HD 6990M Crossfire

Model

  Mobility Radeon HD 4870 X2

  -

benchmarks
Total performance

  -

  Terascale 2(Blackcomb XTX)

Architecture

  Terascale 1(M98-XT)

  40

Process, nm

  55

  2240

Shaders

  1600

  715

Core frequency

  550

  715

Shaders frequency

  550

  GDDR5

Memory type

  GDDR3, GDDR5

  900

Memory frequency

  888

  256

Memory bus

  256

  11

DirectX

  10.1

  23292.0

benchmarks
3DMark06

  14120.0

  7382.0

benchmarks
Cinebench R10

  3546.0