Radeon HD 6770 vs Radeon R7 250X

Radeon HD 6770
Memory: 1024Mb GDDR5DESKTOP
Release date: 21 Jan 2011
Radeon HD 6770
Radeon R7 250X
Memory: 1024Mb GDDR5DESKTOP
Release date: 13 Feb 2014
Radeon R7 250X

Summary

Synthetic performance index

  • Radeon HD 6770
    100%
  • Radeon R7 250X
    157%

Relative performance

Reasons to consider Radeon HD 6770

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon R7 250X

This is a much newer product, it might have better long term support.
Around 57% 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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

Radeon R7 250X

HWBench recommends Radeon R7 250X

The Radeon R7 250X is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 6770Radeon R7 250X
GPU NameJuniper (Juniper XT)vsCape Verde (Cape Verde XT)
Fab Process40 nmvs28 nm
Die Size166 mm²vs123 mm²
Transistors1,040 millionvs1,500 million
Shaders800vs640
Compute Units10vs10
Core clock850 MHzvs950 MHz
ROPs16vs16
TMUs40vs40

Memory Configuration

Radeon HD 6770Radeon R7 250X
Memory TypeGDDR5vsGDDR5
Bus Width128 bitvs128 bit
Memory Speed1200 MHz
4800 MHz effective
vs1125 MHz
4500 MHz effective
Memory Size1024 Mbvs1024 Mb

Additional details

Radeon HD 6770Radeon R7 250X
TDP108 wattsvs80 watts
Release Date21 Jan 2011vs13 Feb 2014

Raw Performance comparison

Pixel Rate

  • Radeon HD 6770
    13.60 GP/s
  • Radeon R7 250X
    15.20 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6770
    34.00 GT/s
  • Radeon R7 250X
    38.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6770
    76.80 GB/s
  • Radeon R7 250X
    72.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6770
    1360.00 GFLOPs
  • Radeon R7 250X
    1216.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 6770
    2550
  • Radeon R7 250X
    4020

Points (higher is better)