AMD Radeon HD 6970M vs AMD Radeon R9 M470

Table of Contents

Graphics Processor

GPU model Blackcomb Emerald
GPU variant Blackcomb XT (216-0811000) Emerald PRO
Architecture TeraScale 2 GCN 2.0
Foundry TSMC TSMC
Manufacturing process 40 nm 28 nm
Number of transistors 1,700 million 2,080 million
Die size 212 mm² 160 mm²

Mobile graphics

Release date Jan 4th, 2011 May 15th, 2016
Generation Vancouver (HD 6900M) Crystal System (R9 M400)
Production End-of-life End-of-life
Interface MXM-B (3.0) PCIe 3.0 x16
Predecessor Manhattan Solar System
Successor London Mobility Radeon

Clocks

GPU clock 680 MHz
Memory clock 900 MHz 3.6 Gbps effective 1500 MHz 6 Gbps effective
Base clock 900 MHz
Boost clock 1000 MHz

Memory Configuration

Memory size 1024 MB 4 GB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 128 bit
Bandwidth 115.2 GB/s 96.00 GB/s

Render Configuration

Shading units 960 768
TMUs 48 48
ROPs 32 16
Compute units 12 12
Cache L1 8 KB (per CU) 16 KB (per CU)
Cache L2 512 KB 256 KB

Performance

Pixel rate 21.76 GPixel/s 16.00 GPixel/s
Texture rate 32.64 GTexel/s 48.00 GTexel/s
FP32 (float) performance 1,306 GFLOPS 1.536 TFLOPS
FP64 (double) performance 96.00 GFLOPS (1:16)

Dimensions & Outputs

Slot width MXM Module
TDP 75 W unknown
Outputs No outputs No outputs
Power connectors None
Board number C296

API Support & Features

DirectX 11.2 (11_0) 12 (12_0)
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan 1.2
Shader model 5.0 6.3

Other Features

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