AMD Radeon R9 M385X vs NVIDIA GeForce 945M

Table of Contents

Graphics Processor

GPU model Strato GM107
GPU variant Strato XT
Architecture GCN 2.0 Maxwell
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 2,080 million 1,870 million
Die size 160 mm² 148 mm²

Mobile graphics

Release date May 5th, 2015 Oct 27th, 2015
Generation Crystal System (R9 M300) GeForce 900M
Production End-of-life End-of-life
Interface PCIe 3.0 x16 MXM-B (3.0)
Predecessor Solar System GeForce 800M
Successor Mobility Radeon GeForce 10 Mobile

Clocks

Base clock 1000 MHz 928 MHz
Boost clock 1100 MHz 1020 MHz
Memory clock 1200 MHz 4.8 Gbps effective 900 MHz 1800 Mbps effective

Memory Configuration

Memory size 4 GB 2 GB
Memory type GDDR5 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 76.80 GB/s 28.80 GB/s

Render Configuration

Shading units 896 640
TMUs 56 40
ROPs 16 16
Compute units 14
Cache L1 16 KB (per CU) 64 KB (per SMM)
Cache L2 256 KB 2 MB
SMM count 5

Performance

Pixel rate 17.60 GPixel/s 16.32 GPixel/s
Texture rate 61.60 GTexel/s 40.80 GTexel/s
FP32 (float) performance 1.971 TFLOPS 1,306 GFLOPS
FP64 (double) performance 123.2 GFLOPS (1:16) 40.80 GFLOPS (1:32)

Dimensions & Outputs

TDP unknown 75 W
Outputs No outputs No outputs
Slot width MXM Module

API Support & Features

DirectX 12 (12_0) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 2.0 3.0
Vulkan 1.2 1.1
Shader model 6.3 5.1
CUDA 5.0

Other Features

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