AMD Radeon HD 6650M vs AMD Radeon R7 M270

Table of Contents

Graphics Processor

GPU model Whistler Opal
GPU variant Whistler LE Opal XT
Architecture TeraScale 2 GCN 1.0
Foundry TSMC TSMC
Manufacturing process 40 nm 28 nm
Number of transistors 716 million 950 million
Die size 104 mm² 77 mm²

Mobile graphics

Release date Jan 4th, 2011 Jan 9th, 2014
Generation Vancouver (HD 6600M) Crystal System (R7 M200)
Production End-of-life End-of-life
Interface PCIe 2.0 x16 PCIe 3.0 x8
Predecessor Manhattan Solar System
Successor London Mobility Radeon

Clocks

GPU clock 600 MHz
Memory clock 800 MHz 1600 Mbps effective 900 MHz 1800 Mbps effective
Base clock 725 MHz
Boost clock 825 MHz

Memory Configuration

Memory size 1024 MB 2 GB
Memory type DDR3 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 25.60 GB/s 28.80 GB/s

Render Configuration

Shading units 480 384
TMUs 24 24
ROPs 8 8
Compute units 6 6
Cache L1 8 KB (per CU) 16 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 4.800 GPixel/s 6.600 GPixel/s
Texture rate 14.40 GTexel/s 19.80 GTexel/s
FP32 (float) performance 576.0 GFLOPS 633.6 GFLOPS

Dimensions & Outputs

TDP unknown unknown
Outputs No outputs No outputs

API Support & Features

DirectX 11.2 (11_0) 12 (11_1)
OpenGL 4.4 4.6
OpenCL 1.2 1.2
Vulkan 1.2
Shader model 5.0 5.1

Other Features

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