AMD Radeon HD 7870 and HD 7850 Launched



Radeon HD 7870
Radeon HD 7870



Radeon HD 7870 and HD 7850 Overview

AMD has officially launched two new Southern Islands graphics cards: the Radeon HD 7870 and the Radeon HD 7850. Both cards are based on the codenamed Pitcairn GPU with GCN architecture. The HD 7870 / HD 7850 target NVIDIA’s GeForce GTX 570.

Radeon HD 7850
Radeon HD 7850



Here are the main features of these new toys:

Radeon HD 7870

  • GPU: Pitcairn @ 1000MHz, 28nm
  • Shader processors: 1280
  • Compute units: 20 (64 SP per compute unit)
  • Texture units: 80
  • Color ROP units: 32
  • Z/Stencil ROP units: 128
  • Memory: 2048MB GDDR5 @ 4800MHz effective or 1200MHz real speed, 256-bit
  • TDP: 190W (175W typical gaming, <3W ZeroCore Power)
  • Power connectors: two 6-pin
  • 3D APIs: OpenGL 4.2 and Direct3D 11.1
  • GPU computing: OpenCL 1.2 and DirectCompute 11
  • Price: around USD $350

Radeon HD 7870, GPU-Z



Radeon HD 7850

  • GPU: Pitcairn @ 860MHz, 28nm
  • Shader processors: 1024
  • Compute units: 16 (64 SP per compute unit)
  • Texture units: 64
  • Color ROP units: 32
  • Z/Stencil ROP units: 128
  • Memory: 2048MB GDDR5 @ 4800MHz effective or 1200MHz real speed, 256-bit
  • TDP: 150W (130W typical gaming, <3W ZeroCore Power)
  • Power connectors: one 6-pin
  • 3D APIs: OpenGL 4.2 and Direct3D 11.1
  • GPU computing: OpenCL 1.2 and DirectCompute 11
  • Price: around USD $250

Radeon HD 7850, GPU-Z

Radeon HD 7800 series, GCN architecture

Radeon HD 7800 series, upgrade

Radeon HD 7800 series, Southern Islands family
AMD’s Southern Islands family


Radeon HD 7870 and HD 7850 Performance

Radeon HD 7800 series, TessMark benchmark
OpenGL tessellation performance in TessMark 0.3.0 (source)

Radeon HD 7800 series, TessMark benchmark
OpenGL power processing performance in ShaderToyMark 0.3.0

Radeon HD 7800 series, performance summary
Performance summary (source)


Radeon HD 7870 and HD 7850 Power Consumption

Radeon HD 7800 series, Power Consumption with FurMark
Power consumption with FurMark (source)


Radeon HD 7870 and HD 7850 Reviews




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