Intel HD Graphics 405 vs Intel Iris Plus Graphics 645

VS

Intel HD Graphics 405 Intel Iris Plus Graphics 645

We compared two Integrated graphics card GPUs: 0System Shared VRAM HD Graphics 405 and 0System Shared VRAM Iris Plus Graphics 645 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel HD Graphics 405 's Advantages

Lower TDP (6W vs 15W)

Intel Iris Plus Graphics 645 's Advantages

Released 4 years and 6 months late

Boost Clock has increased by 75% (1050MHz vs 600MHz)

256 additional rendering cores

Score

Benchmark

FP32 (float)

HD Graphics 405

0.154 TFLOPS

Iris Plus Graphics 645 +423%

0.806 TFLOPS

HD Graphics 405

VS

Iris Plus Graphics 645

Graphics Card

Apr 2015

Release Date

Oct 2019

HD Graphics-T

Generation

HD Graphics-M

Integrated

Type

Integrated

Ring Bus

Bus Interface

Ring Bus

Clock Speeds

200 MHz

Base Clock

300 MHz

600 MHz

Boost Clock

1050 MHz

System Shared

Memory Clock

System Shared

Memory

System Shared

Memory Size

System Shared

Memory Type

System Shared

Memory Bus

System Shared

System Dependent

Bandwidth

System Dependent

Render Config

-

SM Count

-

Compute Units

-

128

Shading Units

384

16

TMUs

48

2

ROPs

6

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

L2 Cache

-

Theoretical Performance

1.200 GPixel/s

Pixel Rate

6.300 GPixel/s

9.600 GTexel/s

Texture Rate

50.40 GTexel/s

-

FP16 (half)

1.613 TFLOPS

153.6 GFLOPS

FP32 (float)

806.4 GFLOPS

38.40 GFLOPS

FP64 (double)

201.6 GFLOPS

Graphics Processor

Braswell GT1

GPU Name

Coffee Lake GT3e

-

GPU Variant

-

Generation 8.0

Architecture

Generation 9.5

Intel

Foundry

Intel

14 nm

Process Size

14 nm+++

Unknown

Transistors

Unknown

Die Size

Unknown

Board Design

6W

TDP

15W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.3

OpenGL

4.6

3.0

OpenCL

3.0

1.0

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.4

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