AMD Radeon 540X Mobile vs NVIDIA GeForce 845M

Table of Contents

Graphics Processor

GPU model Lexa GM107
GPU variant Lexa PRO (215-0904018) N15S-GT1R
Architecture GCN 4.0 Maxwell
Foundry GlobalFoundries TSMC
Manufacturing process 14 nm 28 nm
Number of transistors 2,200 million 1,870 million
Die size 103 mm² 148 mm²

Mobile graphics

Release date Feb 11th, 2019 Feb 7th, 2015
Generation Mobility Radeon (M500X) GeForce 800M
Production End-of-life End-of-life
Interface PCIe 3.0 x8 PCIe 3.0 x16
Predecessor Crystal System GeForce 700M
Successor GeForce 900M

Clocks

Base clock 980 MHz
Boost clock 1095 MHz
Memory clock 1000 MHz 4 Gbps effective 1001 MHz 2 Gbps effective
GPU clock 863 MHz

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 DDR3
Memory bus width 64 bit 64 bit
Bandwidth 32.00 GB/s 16.02 GB/s

Render Configuration

Shading units 512 512
TMUs 32 32
ROPs 16 16
Compute units 8
Cache L1 16 KB (per CU) 64 KB (per SMM)
Cache L2 512 KB 1024 KB
SMM count 4

Performance

Pixel rate 17.52 GPixel/s 13.81 GPixel/s
Texture rate 35.04 GTexel/s 27.62 GTexel/s
FP16 (half) performance 1,121 GFLOPS (1:1)
FP32 (float) performance 1,121 GFLOPS 883.7 GFLOPS
FP64 (double) performance 70.08 GFLOPS (1:16) 27.62 GFLOPS (1:32)

Dimensions & Outputs

Slot width Dual-slot IGP
TDP 50 W 45 W
Outputs No outputs No outputs
Power connectors None

API Support & Features

DirectX 12 (12_0) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 2.1 3.0
Vulkan 1.2 1.1
Shader model 6.4 5.1
CUDA 5.0

Other Features

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