AMD Radeon R9 M390X vs NVIDIA Quadro P620 Mobile

Table of Contents

Graphics Processor

GPU model Amethyst GP107
GPU variant Amethyst XT
Architecture GCN 3.0 Pascal
Foundry TSMC Samsung
Manufacturing process 28 nm 14 nm
Number of transistors 5,000 million 3,300 million
Die size 366 mm² 132 mm²

Mobile graphics

Release date May 5th, 2015 Feb 1st, 2018
Generation Crystal System (R9 M300) Quadro Mobile (Px200)
Production End-of-life End-of-life
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor Solar System
Successor Mobility Radeon

Clocks

GPU clock 723 MHz
Memory clock 1250 MHz 5 Gbps effective 1502 MHz 6 Gbps effective
Base clock 1177 MHz
Boost clock 1443 MHz

Memory Configuration

Memory size 4 GB 4 GB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 128 bit
Bandwidth 160.0 GB/s 96.13 GB/s

Render Configuration

Shading units 2048 512
TMUs 128 32
ROPs 32 16
Compute units 32
Cache L1 16 KB (per CU) 48 KB (per SM)
Cache L2 512 KB 1024 KB
SM count 4

Performance

Pixel rate 23.14 GPixel/s 23.09 GPixel/s
Texture rate 92.54 GTexel/s 46.18 GTexel/s
FP16 (half) performance 2.961 TFLOPS (1:1) 23.09 GFLOPS (1:64)
FP32 (float) performance 2.961 TFLOPS 1,478 GFLOPS
FP64 (double) performance 185.1 GFLOPS (1:16) 46.18 GFLOPS (1:32)

Dimensions & Outputs

Slot width MXM Module IGP
TDP 75 W 40 W
Outputs No outputs No outputs
Power connectors None None
Board number C608

API Support & Features

DirectX 12 (12_0) 12 (12_1)
OpenGL 4.6 4.6
OpenCL 2.0 3.0
Vulkan 1.2 1.2
Shader model 6.3 6.4
CUDA 6.1

Other Features

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