Radeon R7 M340 Overview

Radeon R7 M340
Memory: 2048Mb DDR3MOBILE
Release date: 5 May 2015
Radeon R7 M340

Core Configuration

GPU Meso
Architecture AMD_GCN_1_0
Shaders : TMUs : ROPs 320 : 20 : 8
Raytracing Cores none
Performance 653.40 GFLOPs

Memory Configuration

Memory Size 2048 Mb
Memory Bus Width 64 bit
Memory Speed 1000 MHz
2000 MHz effective
Memory Bandwidth 16.00 Gb/s

Summary

Relative performance

  • Radeon R5 M255
    100%
  • Radeon R7 M260
    100%
  • GeForce 825M
    96%
  • GeForce GT 650M
    96%
  • Radeon HD 8790M
    95%
  • Radeon HD 7730M
    95%
  • Radeon HD 7770M
    95%
  • Radeon R5 M335
    94%
  • GeForce GT 745M
    94%
  • GeForce GTX 660M
    94%
  • GeForce 810M
    91%
  • GeForce 820M
    91%
  • GeForce GT 740M Rev. 2
    91%
  • Radeon R5 M330
    91%
  • Radeon R5 M240
    91%
  • Radeon R7 M340
    90%
  • Radeon R7 M265
    87%
  • Radeon R7 M270
    87%
  • Radeon HD 8770M
    87%
  • Radeon HD 8670M Rev. 2
    87%
  • Radeon HD 8670M
    86%
  • Radeon HD 8750M
    82%
  • GeForce GT 730M
    81%
  • Radeon HD 7750M
    81%
  • GeForce GT 645M
    80%
  • Radeon R5 M420
    75%
  • Radeon R5 M430
    75%
  • Radeon R5 M435
    75%
  • Radeon R7 M440
    75%
  • Radeon R7 M445
    75%

Data interpolated by architecture, based on benchmarks charts.

The Radeon R7 M340 is a graphics card released by AMD on 5 May 2015. The graphics card houses the Meso die, based on the AMD_GCN_1_0 architecture which packs unknown transistors on a 28 nm, 77 mm2 die.

Radeon R7 M340 pros and cons

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Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications



Specifications


Compared to similar performing cards

Radeon R7 M340Radeon R5 M255Radeon R7 M260
Radeon R7 M340Radeon R5 M255Radeon R7 M260
compare
compare
Shader units320384384
ROPs888
Graphics processorMesoTopazTopaz
Process size28 nm28 nm28 nm
Memory2048 Mb DDR3 (1000 MHz
2000 MHz effective)
1024 Mb GDDR5 (1000 MHz
4000 MHz effective)
1024 Mb GDDR5 (900 MHz
3600 MHz effective)
Memory bus width64 bit128 bit128 bit
Memory bandwidth16.00 Gb/s64.00 Gb/s57.60 Gb/s
Release date5 May 201512 Oct 201411 Jun 2014