Radeon HD 6850 X2 vs Radeon R9 270

Radeon HD 6850 X2
Memory: 2048Mb GDDR5 DESKTOP
Release date: 19 Sep 2011
Radeon HD 6850 X2
Radeon R9 270
Memory: 2048Mb GDDR5 DESKTOP
Release date: 13 Nov 2013
Radeon R9 270

Summary

Reasons to consider Radeon HD 6850 X2

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.

Reasons to consider Radeon R9 270

104 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 6850 X2 .
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.

No clear winner declared

We have no data to declare a winner at this time.


Specifications

Core Configuration

Radeon HD 6850 X2 Radeon R9 270
GPU Name Barts (Barts PRO) vs Curacao (Curacao PRO)
Fab Process 40 nm vs 28 nm
Die Size 255 mm² vs 212 mm²
Transistors 1,700 million vs 2,800 million
Shaders 960 vs 1280
Compute Units 12 vs 20
Core clock 800 MHz vs 900 MHz
ROPs 32 vs 32
TMUs 48 vs 80

Memory Configuration

Radeon HD 6850 X2 Radeon R9 270
Memory Type GDDR5 vs GDDR5
Bus Width 256 bit x2 vs 256 bit
Memory Speed 1050 MHz
4200 MHz effective
vs 1400 MHz
5600 MHz effective
Memory Size 2048 Mb vs 2048 Mb

Additional details

Radeon HD 6850 X2 Radeon R9 270
TDP 254 watts vs 150 watts
Release Date 19 Sep 2011 vs 13 Nov 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 6850 X2
    51.20 GP/s
  • Radeon R9 270
    28.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6850 X2
    76.80 GT/s
  • Radeon R9 270
    72.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6850 X2
    268.00 GB/s
  • Radeon R9 270
    179.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6850 X2
    3072.00 GFLOPs
  • Radeon R9 270
    2304.00 GFLOPs

GFLOPs - higher is better