Radeon HD 4750 vs Radeon HD 7750

Radeon HD 4750
Memory: 512Mb GDDR5DESKTOP
Release date: 9 Sep 2009
Radeon HD 4750
Radeon HD 7750
Memory: 1024Mb GDDR5DESKTOP
Release date: 15 Feb 2012
Radeon HD 7750

Summary

Reasons to consider Radeon HD 4750

Based on an outdated architecture (ATI TeraScale), there are no performance optimizations for current games and applications

Reasons to consider Radeon HD 7750

45 watts lower power draw. This might be a strong point if your current power supply is not enough to handle the Radeon HD 4750 .
This is a much newer product, it might have better long term support.
Higher theoretical gaming performance, based on specifications.
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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications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 7750

HWBench recommends Radeon HD 7750

Based on theoretical specifications.


Specifications

Core Configuration

Radeon HD 4750Radeon HD 7750
GPU NameRV740 (RV740 PRO)vsCape Verde (Cape Verde PRO)
Fab Process40 nmvs28 nm
Die Size137 mm²vs123 mm²
Transistors826 millionvs1,500 million
Shaders640vs512
Compute Units8vs8
Core clock730 MHzvs800 MHz
ROPs16vs16
TMUs32vs32

Memory Configuration

Radeon HD 4750Radeon HD 7750
Memory TypeGDDR5vsGDDR5
Bus Width128 bitvs128 bit
Memory Speed800 MHz
3200 MHz effective
vs1125 MHz
4500 MHz effective
Memory Size512 Mbvs1024 Mb

Additional details

Radeon HD 4750Radeon HD 7750
TDP100 wattsvs55 watts
Release Date9 Sep 2009vs15 Feb 2012

Raw Performance comparison

Pixel Rate

  • Radeon HD 4750
    11.70 GP/s
  • Radeon HD 7750
    12.80 GP/s

GigaPixels - higher is better

Texel Rate

  • Radeon HD 4750
    23.40 GT/s
  • Radeon HD 7750
    25.60 GT/s

GigaTexels - higher is better

Memory bandwidth

  • Radeon HD 4750
    51.20 GB/s
  • Radeon HD 7750
    72.00 GB/s

GB/s - higher is better

Single precision performance

  • Radeon HD 4750
    934.40 GFLOPs
  • Radeon HD 7750
    819.20 GFLOPs

GFLOPs - higher is better