NVIDIA GeForce GT 745M vs NVIDIA GeForce GTX 850A

Table of Contents

Graphics Processor

GPU model GK107 GM107
GPU variant N14P-LP N15P-GT-A1
Architecture Kepler Maxwell
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 1,270 million 1,870 million
Die size 118 mm² 148 mm²

Mobile graphics

Release date Apr 1st, 2013 Mar 17th, 2014
Generation GeForce 700M GeForce 800A
Production End-of-life End-of-life
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor GeForce 600M GeForce 700A
Successor GeForce 800M GeForce 900A

Clocks

GPU clock 837 MHz
Memory clock 900 MHz 1800 Mbps effective 900 MHz 1800 Mbps effective
Base clock 902 MHz
Boost clock 936 MHz

Memory Configuration

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

Render Configuration

Shading units 384 640
TMUs 32 40
ROPs 16 16
SMX count 2
Cache L1 16 KB (per SMX) 64 KB (per SMM)
Cache L2 256 KB 2 MB
SMM count 5

Performance

Pixel rate 6.696 GPixel/s 14.98 GPixel/s
Texture rate 26.78 GTexel/s 37.44 GTexel/s
FP32 (float) performance 642.8 GFLOPS 1,198 GFLOPS
FP64 (double) performance 26.78 GFLOPS (1:24) 37.44 GFLOPS (1:32)

Dimensions & Outputs

Slot width IGP IGP
TDP 45 W 45 W
Outputs No outputs No outputs

API Support & Features

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

Other Features

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