AMD Radeon 550X Mobile vs NVIDIA GeForce GTX 485M

Table of Contents

Graphics Processor

GPU model Polaris 23 GF104
GPU variant Polaris 23 MXT N12E-GTX-A1
Architecture GCN 4.0 Fermi
Foundry GlobalFoundries TSMC
Manufacturing process 14 nm 40 nm
Number of transistors 2,200 million 1,950 million
Die size 103 mm² 332 mm²

Mobile graphics

Release date Apr 11th, 2018 Jan 5th, 2011
Generation Mobility Radeon (M500X) GeForce 400M
Production Active End-of-life
Interface PCIe 3.0 x8 MXM-B (3.0)
Predecessor Crystal System GeForce 300M
Successor GeForce 500M

Clocks

Base clock 1100 MHz
Boost clock 1287 MHz
Memory clock 1500 MHz 6 Gbps effective 750 MHz 3 Gbps effective
GPU clock 575 MHz
Shader clock 1150 MHz

Memory Configuration

Memory size 4 GB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 64 bit 256 bit
Bandwidth 48.00 GB/s 96.00 GB/s

Render Configuration

Shading units 640 384
TMUs 40 64
ROPs 16 32
Compute units 10
Cache L1 16 KB (per CU) 64 KB (per SM)
Cache L2 256 KB 512 KB
SM count 8

Performance

Pixel rate 20.59 GPixel/s 9.200 GPixel/s
Texture rate 51.48 GTexel/s 36.80 GTexel/s
FP16 (half) performance 1.647 TFLOPS (1:1)
FP32 (float) performance 1.647 TFLOPS 883.2 GFLOPS
FP64 (double) performance 103.0 GFLOPS (1:16) 73.60 GFLOPS (1:12)

Dimensions & Outputs

Slot width IGP MXM Module
TDP 50 W 100 W
Outputs No outputs No outputs
Power connectors None None
Board number P1044

API Support & Features

DirectX 12 (12_0) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 2.1 1.1
Vulkan 1.2
Shader model 6.4 5.1
CUDA 2.1

Other Features

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