NVIDIA GeForce 945M vs NVIDIA GeForce GTX 580M

Table of Contents

Graphics Processor

GPU model GM107 GF114
Architecture Maxwell Fermi 2.0
Foundry TSMC TSMC
Manufacturing process 28 nm 40 nm
Number of transistors 1,870 million 1,950 million
Die size 148 mm² 332 mm²
GPU variant N12E-GTX2-A1

Mobile graphics

Release date Oct 27th, 2015 Jun 28th, 2011
Generation GeForce 900M GeForce 500M
Production End-of-life End-of-life
Interface MXM-B (3.0) MXM-B (3.0)
Predecessor GeForce 800M GeForce 400M
Successor GeForce 10 Mobile GeForce 600M
Reviews 1 in our database

Clocks

Base clock 928 MHz
Boost clock 1020 MHz
Memory clock 900 MHz 1800 Mbps effective 750 MHz 3 Gbps effective
GPU clock 620 MHz
Shader clock 1240 MHz

Memory Configuration

Memory size 2 GB 2 GB
Memory type DDR3 GDDR5
Memory bus width 128 bit 256 bit
Bandwidth 28.80 GB/s 96.00 GB/s

Render Configuration

Shading units 640 384
TMUs 40 64
ROPs 16 32
SMM count 5
Cache L1 64 KB (per SMM) 64 KB (per SM)
Cache L2 2 MB 512 KB
SM count 8

Performance

Pixel rate 16.32 GPixel/s 9.920 GPixel/s
Texture rate 40.80 GTexel/s 39.68 GTexel/s
FP32 (float) performance 1,306 GFLOPS 952.3 GFLOPS
FP64 (double) performance 40.80 GFLOPS (1:32) 79.36 GFLOPS (1:12)

Dimensions & Outputs

Slot width MXM Module MXM Module
TDP 75 W 100 W
Outputs No outputs No outputs
Power connectors None
Board number P1314

API Support & Features

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

Other Features

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