G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Overview

The Iris Plus Graphics 645 is manufactured by Intel. It was released in October 7 2019. It features the Generation 9.5 architecture. The core clock ranges from 300 MHz to 1050 MHz. It has 384 shading units. The thermal design power (TDP) is 15W. Manufactured using 14 nm+++ process technology. G3D Mark benchmark score: 1,450 points.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance benchmarks.

FPS Benchmarks

Predicted performance for Iris Plus Graphics 645 across popular games. Tested paired with Ryzen 7 7800X3D to isolate GPU performance.

Technical Analysis

Detailed breakdown of Iris Plus Graphics 645 specifications and capabilities.

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Graphics Performance

The Iris Plus Graphics 645 scores 1,450 in the G3D Mark benchmark (the standard measure of rasterization GPU performance), placing it in the Entry Level tier as a Legacy generation graphics card. It is built on the Generation 9.5 (2016−2020) architecture (codename: Coffee Lake GT3e), manufactured on a 14 nm+++ process— smaller process nodes improve power efficiency and transistor density. It packs 384 shader units (the primary compute units for rendering pixels), 48 TMUs (texture mapping units), and 6 ROPs (render output units that handle final pixel output). Raw FP32 compute power: 0.8064 TFLOPS — this measures the theoretical peak floating-point performance. Boost clock reaches 1050 MHz from a base of 300 MHz.

Specification	Iris Plus Graphics 645
G3D MarkPassMark 3D graphics benchmark score	1,450
ArchitectureGPU microarchitecture generation	Generation 9.5 (2016−2020)
CodenameInternal GPU die codename	Coffee Lake GT3e
Manufacturing ProcessFabrication node — smaller = more efficient	14 nm+++
Shader UnitsCore compute units for rendering/compute	384
TMUsTexture Mapping Units — handle texture sampling	48
ROPsRender Output Units — final pixel/color blending	6
Boost ClockMaximum GPU frequency under load	1050 MHz
Base ClockGuaranteed minimum GPU frequency	300 MHz
Compute (FP32)Peak single-precision floating-point performance	0.8064 TFLOPS
Texture Fill RateTextures processed per second	50.40 GTexel/s
PCIe InterfaceCPU↔GPU data link generation	IGP
Performance RankPosition in global GPU performance ranking	#720

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Video Memory (VRAM)

The Iris Plus Graphics 645 is equipped with Shared System RAM of Shared video memory connected via a System memory bus, delivering System of bandwidth.

Specification	Iris Plus Graphics 645
VRAM SizeVideo memory capacity — more = better for high-res textures	Shared System RAM
VRAM TypeMemory technology generation	Shared
Memory BusWidth of data path — wider = more bandwidth	System
BandwidthMaximum data throughput between GPU and VRAM	System