AMD Radeon HD 8870M vs AMD Radeon R7 M380

Table of Contents

Graphics Processor

GPU model Venus Tropo
GPU variant Venus XT Tropo XT
Architecture GCN 1.0 GCN 1.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 1,500 million 1,500 million
Die size 123 mm² 123 mm²

Mobile graphics

Release date Apr 1st, 2013 May 5th, 2015
Generation Solar System (HD 8800M) Crystal System (R7 M300)
Production End-of-life End-of-life
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor London Solar System
Successor Crystal System Mobility Radeon

Clocks

Base clock 725 MHz 900 MHz
Boost clock 775 MHz 915 MHz
Memory clock 1125 MHz 4.5 Gbps effective 1000 MHz 2 Gbps effective

Memory Configuration

Memory size 2 GB 4 GB
Memory type GDDR5 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 72.00 GB/s 32.00 GB/s

Render Configuration

Shading units 640 640
TMUs 40 40
ROPs 16 16
Compute units 10 10
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 12.40 GPixel/s 14.64 GPixel/s
Texture rate 31.00 GTexel/s 36.60 GTexel/s
FP32 (float) performance 992.0 GFLOPS 1,171 GFLOPS
FP64 (double) performance 62.00 GFLOPS (1:16) 73.20 GFLOPS (1:16)

Dimensions & Outputs

TDP unknown unknown
Outputs No outputs No outputs

API Support & Features

DirectX 12 (11_1) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2 1.2
Shader model 5.1 5.1

Other Features

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