Radeon HD 6850 X2 vs Radeon R9 270

Radeon HD 6850 X2
Memory: 2048Mb GDDR5DESKTOP
Release date: 19 Sep 2011
Radeon HD 6850 X2
Radeon R9 270
Memory: 2048Mb GDDR5DESKTOP
Release date: 13 Nov 2013
Radeon R9 270


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Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications.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


Core Configuration

Radeon HD 6850 X2Radeon R9 270
GPU NameBarts (Barts PRO)vsCuracao (Curacao PRO)
Fab Process40 nmvs28 nm
Die Size255 mm²vs212 mm²
Transistors1,700 millionvs2,800 million
Compute Units12vs20
Core clock800 MHzvs900 MHz

Memory Configuration

Radeon HD 6850 X2Radeon R9 270
Memory TypeGDDR5vsGDDR5
Bus Width256 bit x2vs256 bit
Memory Speed1050 MHz
4200 MHz effective
vs1400 MHz
5600 MHz effective
Memory Size2048 Mbvs2048 Mb

Additional details

Radeon HD 6850 X2Radeon R9 270
TDP254 wattsvs150 watts
Release Date19 Sep 2011vs13 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