Radeon HD 7770 GHz Edition vs Radeon R7 240 (HD 8570 rebrand)

Radeon HD 7770 GHz Edition
Memory: 1024Mb GDDR5DESKTOP
Release date: 15 Feb 2012
Radeon HD 7770 GHz Edition
Radeon R7 240 (HD 8570 rebrand)
Memory: 2048Mb DDR3DESKTOP
Release date: 1 Nov 2013
Radeon R7 240 (HD 8570 rebrand)

Summary

Synthetic performance index

  • Radeon HD 7770 GHz Edition
    227%
  • Radeon R7 240 (HD 8570 rebrand)
    100%

Relative performance

Reasons to consider Radeon HD 7770 GHz Edition

Around 127% higher average synthetic performance.
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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Reasons to consider Radeon R7 240 (HD 8570 rebrand)

This is a much newer product, it might have better long term support.
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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon HD 7770 GHz Edition

HWBench recommends Radeon HD 7770 GHz Edition

The Radeon HD 7770 GHz Edition is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 7770 GHz EditionRadeon R7 240 (HD 8570 rebrand)
GPU NameCape Verde (Cape Verde XT)vsOland ()
Fab Process28 nmvs28 nm
Die Size123 mm²vs90 mm²
Transistors1,500 millionvs1,040 million
Shaders640vs320
Compute Units10vs5
Core clock1000 MHzvs730 MHz
ROPs16vs8
TMUs40vs20

Memory Configuration

Radeon HD 7770 GHz EditionRadeon R7 240 (HD 8570 rebrand)
Memory TypeGDDR5vsDDR3
Bus Width128 bitvs128 bit
Memory Speed1125 MHz
4500 MHz effective
vs900 MHz
1800 MHz effective
Memory Size1024 Mbvs2048 Mb

Additional details

Radeon HD 7770 GHz EditionRadeon R7 240 (HD 8570 rebrand)
TDP80 wattsvs50 watts
Release Date15 Feb 2012vs1 Nov 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 7770 GHz Edition
    16.00 GP/s
  • Radeon R7 240 (HD 8570 rebrand)
    5.84 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 7770 GHz Edition
    40.00 GT/s
  • Radeon R7 240 (HD 8570 rebrand)
    14.60 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 7770 GHz Edition
    72.00 GB/s
  • Radeon R7 240 (HD 8570 rebrand)
    28.80 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 7770 GHz Edition
    1280.00 GFLOPs
  • Radeon R7 240 (HD 8570 rebrand)
    467.20 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 7770 GHz Edition
    4170
  • Radeon R7 240 (HD 8570 rebrand)
    1830

Points (higher is better)