Radeon HD 6450 vs Radeon R9 270

Radeon HD 6450
Memory: 512Mb GDDR5DESKTOP
Release date: 7 Apr 2011
Radeon HD 6450
Radeon R9 270
Memory: 2048Mb GDDR5DESKTOP
Release date: 13 Nov 2013
Radeon R9 270

Summary

Synthetic performance index

  • Radeon HD 6450
    100%
  • Radeon R9 270
    1503%

Relative performance

Reasons to consider Radeon HD 6450

132 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon R9 270 .
Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon R9 270

This is a much newer product, it might have better long term support.
Around 1403% 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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 R9 270

HWBench recommends Radeon R9 270

The Radeon R9 270 is the better performing card based on the synthetic benchmarks used (1 benchmarks).


Specifications

Core Configuration

Radeon HD 6450Radeon R9 270
GPU NameCaicos (Caicos PRO)vsCuracao (Curacao PRO)
Fab Process40 nmvs28 nm
Die Size67 mm²vs212 mm²
Transistors370 millionvs2,800 million
Shaders160vs1280
Compute Units2vs20
Core clock625 MHzvs900 MHz
ROPs4vs32
TMUs8vs80

Memory Configuration

Radeon HD 6450Radeon R9 270
Memory TypeGDDR5vsGDDR5
Bus Width64 bitvs256 bit
Memory Speed800 MHz
3200 MHz effective
vs1400 MHz
5600 MHz effective
Memory Size512 Mbvs2048 Mb

Additional details

Radeon HD 6450Radeon R9 270
TDP18 wattsvs150 watts
Release Date7 Apr 2011vs13 Nov 2013

Raw Performance comparison

Pixel Rate

  • Radeon HD 6450
    2.50 GP/s
  • Radeon R9 270
    28.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 6450
    5.00 GT/s
  • Radeon R9 270
    72.00 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 6450
    25.60 GB/s
  • Radeon R9 270
    179.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 6450
    200.00 GFLOPs
  • Radeon R9 270
    2304.00 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

  • Radeon HD 6450
    520
  • Radeon R9 270
    7820

Points (higher is better)