AMD Radeon 550X Mobile vs AMD Radeon R7 250X

Table of Contents

Graphics Processor

GPU model Polaris 23 Cape Verde
GPU variant Polaris 23 MXT Cape Verde XT
Architecture GCN 4.0 GCN 1.0
Foundry GlobalFoundries TSMC
Manufacturing process 14 nm 28 nm
Number of transistors 2,200 million 1,500 million
Die size 103 mm² 123 mm²

Mobile graphics

Release date Apr 11th, 2018
Generation Mobility Radeon (M500X)
Production Active
Interface PCIe 3.0 x8
Predecessor Crystal System

Clocks

Base clock 1100 MHz
Boost clock 1287 MHz
Memory clock 1500 MHz 6 Gbps effective 1125 MHz 4.5 Gbps effective
GPU clock 950 MHz

Memory Configuration

Memory size 4 GB 1024 MB
Memory type GDDR5 GDDR5
Memory bus width 64 bit 128 bit
Bandwidth 48.00 GB/s 72.00 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 20.59 GPixel/s 15.20 GPixel/s
Texture rate 51.48 GTexel/s 38.00 GTexel/s
FP16 (half) performance 1.647 TFLOPS (1:1)
FP32 (float) performance 1.647 TFLOPS 1,216 GFLOPS
FP64 (double) performance 103.0 GFLOPS (1:16) 76.00 GFLOPS (1:16)

Dimensions & Outputs

Slot width IGP Dual-slot
TDP 50 W 80 W
Outputs No outputs 1x DVI1x HDMI2x mini-DisplayPort
Power connectors None 1x 6-pin
Length 210 mm 8.3 inches
Suggested PSU 250 W
Board number C441, C698

API Support & Features

DirectX 12 (12_0) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 2.1 1.2
Vulkan 1.2 1.2
Shader model 6.4 5.1

Other Features

Graphics Card

Release date Feb 13th, 2014
Generation Volcanic Islands
Production End-of-life
Launch price 99 USD
Interface PCIe 3.0 x16
Predecessor Sea Islands
Successor Pirate Islands

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