Intel Iris Plus Graphics 645 vs NVIDIA GeForce GTX 660M Mac Edition

Table of Contents

Graphics Processor

GPU model Coffee Lake GT3e GK107
Architecture Generation 9.5 Kepler
Foundry Intel TSMC
Manufacturing process 14 nm+++ 28 nm
Number of transistors unknown 1,270 million
Die size unknown 118 mm²

Integrated Graphics

Release date Oct 7th, 2019
Generation HD Graphics-M (Coffee Lake)
Production Active
Interface Ring Bus
Reviews 1 in our database

Clocks

Base clock 300 MHz
Boost clock 1050 MHz
Memory clock System Shared 1250 MHz 5 Gbps effective
GPU clock 950 MHz

Memory Configuration

Memory size System Shared 512 MB
Memory type System Shared GDDR5
Memory bus width System Shared 128 bit
Bandwidth System Dependent 80.00 GB/s

Render Configuration

Shading units 384 384
TMUs 48 32
ROPs 6 16
Execution units 48
SMX count 2
Cache L1 16 KB (per SMX)
Cache L2 256 KB

Performance

Pixel rate 6.300 GPixel/s 7.600 GPixel/s
Texture rate 50.40 GTexel/s 30.40 GTexel/s
FP16 (half) performance 1.613 TFLOPS (2:1)
FP32 (float) performance 806.4 GFLOPS 729.6 GFLOPS
FP64 (double) performance 201.6 GFLOPS (1:4) 30.40 GFLOPS (1:24)

Dimensions & Outputs

Slot width IGP MXM Module
TDP 15 W 50 W
Outputs No outputs No outputs
Power connectors None

API Support & Features

DirectX 12 (12_1) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 3.0 3.0
Vulkan 1.2 1.1
Shader model 6.4 5.1
CUDA 3.0

Other Features

Mobile graphics

Release date Apr 1st, 2013
Generation GeForce 600M
Production End-of-life
Interface MXM-B (3.0)
Predecessor GeForce 500M
Successor GeForce 700M

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