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Graphics card overview

Radeon HD 7770 GHz Edition

AMD

Radeon HD 7770 GHz Edition

1024 Mb GDDR5 Released 15 Feb 2012 DESKTOP
Radeon HD 7770 GHz Edition

Core configuration

GPUCape Verde
ArchitectureAMD_GCN_1_0
Shaders : TMUs : ROPs640 : 40 : 16
Raytracing Coresnone
Performance1280.00 GFLOPs

Memory configuration

Memory Size1024 Mb
Memory Bus Width128 bit
Memory Speed1125 MHz
4500 MHz effective
Memory Bandwidth72.00 Gb/s

Summary

Relative performance

Performance summary, based on benchmarks charts.

The Radeon HD 7770 GHz Edition is a graphics card released by AMD on 15 Feb 2012. The graphics card houses the Cape Verde die, based on the AMD_GCN_1_0 architecture which packs 1,500 million transistors on a 28 nm, 123 mm² die.

Radeon HD 7770 GHz Edition pros and cons

  • Supports Direct3D 12 Async Compute
  • Supports ReLive (allows game streaming/recording with minimum performance penalty)
  • Supports Mantle
  • Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Specifications

Compared to similar performing cards
Radeon HD 7770 GHz Edition Radeon HD 7770 GHz Edition GeForce GTX 650 Ti GeForce GTX 650 Ti Compare Radeon HD 6950 Radeon HD 6950 Compare Radeon HD 6870 Radeon HD 6870 Compare Radeon HD 6850 Radeon HD 6850 Compare
Shader units 640 768 1408 1120 960
ROPs 16 16 32 32 32
Graphics processor Cape Verde GK106 Cayman Barts Barts
Process size 28 nm 28 nm 40 nm 40 nm 40 nm
Memory 1024 Mb GDDR5 (1125 MHz
4500 MHz effective)		 1024 Mb GDDR5 (1350 MHz
5400 MHz effective)		 2048 Mb GDDR5 (1250 MHz
5000 MHz effective)		 1024 Mb GDDR5 (1050 MHz
4200 MHz effective)		 1024 Mb GDDR5 (1000 MHz
4000 MHz effective)
Memory bus width 128 bit 128 bit 256 bit 256 bit 256 bit
Memory bandwidth 72.00 Gb/s 86.40 Gb/s 160.00 Gb/s 134.00 Gb/s 128.00 Gb/s
Release date 15 Feb 2012 9 Oct 2012 14 Dec 2010 21 Oct 2010 21 Oct 2010

Benchmarks

Hitman Absolution

  • Radeon HD 7770 GHz Edition 23

FPS (higher is better)

Medal Of Honor Warfighter

  • Radeon HD 6950 28
  • GeForce GTX 650 Ti 25
  • Radeon HD 6870 25
  • Radeon HD 7770 GHz Edition 22
  • Radeon HD 6850 20

FPS (higher is better)

Bioshock Infinite

  • Radeon HD 6870 29
  • Radeon HD 7770 GHz Edition 23

FPS (higher is better)

Crysis 3

  • GeForce GTX 650 Ti 21
  • Radeon HD 6950 18
  • Radeon HD 6870 17
  • Radeon HD 7770 GHz Edition 17

FPS (higher is better)