Intel Iris Plus Graphics 645
英特尔Iris Plus Graphics 645（GT3e）是一种处理器图形卡，于2019年中首次出现在Apple MacBook Pro 13（入门版，2019）中。它与28瓦CPU中的Iris Plus Graphics 655类似。
所谓的Coffee-Lake GPU GT3e版本仍然具有48个执行单元（EU），根据型号的不同，它们的频率可以达到1150 MHz。除eDRAM缓存外，Iris 645还可以通过处理器接口访问系统内存（2个64位DDR3L-2133 / DDR4-2400）。
性能
Iris Plus Graphics 645的确切性能取决于CPU型号，因为最高频率以及L3缓存的大小可能会有所不同。系统内存（DDR3 / DDR4）也将影响性能。
最快的芯片是诸如Core i7-8557U之类的高频率Core i7型号。根据游戏的不同，Iris Plus 655的性能可能会与GeForce 930M或GeForce 940MX相提并论，并且可以在低至中的画质设置流畅的运行现代游戏。
特征
经过重新设计的视频引擎现在完全支持H.265 / HEVC视频的硬件解码。与Skylake不同，Kaby Lake现在还可以解码具有10位色深的H.265 / HEVC Main 10以及Google的VP9编解码器。可以通过DP 1.2 / eDP 1.3（在60 Hz时高达3840 x 2160 @ 60 Hz）进行视频输出，而较早的1.4a标准也支持HDMI。可以通过DisplayPort的转换器添加HDMI 2.0输出。 GPU最多可以同时驱动三个显示器。
能耗
Iris Plus Graphics 645用于15瓦处理器，因此适用于小型笔记本电脑。
Gen. 9.5 Series
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| Codename | Kaby Lake GT3e | |||||||||||||||||||||||||||||||||||||||
| Architecture | Gen. 9.5 Coffee Lake | |||||||||||||||||||||||||||||||||||||||
| iGPU | Integrated Graphics | |||||||||||||||||||||||||||||||||||||||
| Pipelines | 48 - unified | |||||||||||||||||||||||||||||||||||||||
| Core Speed | 300 - 1150 (Boost) MHz | |||||||||||||||||||||||||||||||||||||||
| Memory Type | DDR3, DDR4 | |||||||||||||||||||||||||||||||||||||||
| Shared Memory | yes | |||||||||||||||||||||||||||||||||||||||
| API | DirectX 12_1, OpenGL 4.5 | |||||||||||||||||||||||||||||||||||||||
| Man. Technology | 14 nm | |||||||||||||||||||||||||||||||||||||||
| Features | QuickSync | |||||||||||||||||||||||||||||||||||||||
| Date of Announcement | 10.07.2019 | |||||||||||||||||||||||||||||||||||||||
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Benchmarks
Cinebench R15 OpenGL 64 Bit +
GFXBench T-Rex HD Offscreen C24Z16 +
- Average benchmark values* Smaller numbers mean a higher performance
Game Benchmarks
The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.
X-Plane 11.11
2018
Dota 2 Reborn
2015
BioShock Infinite
2013| low | med. | high | ultra | QHD | 4K | |
|---|---|---|---|---|---|---|
| X-Plane 11.11 | 37.4 | 26.1 | 22.5 | |||
| Dota 2 Reborn | 76.5 | 57.3 | 29 | 26.9 | ||
| BioShock Infinite | 104.6 | 60 | 51.6 | 22.1 | ||
| low | med. | high | ultra | QHD | 4K | < 30 fps < 60 fps < 120 fps ≥ 120 fps | 1 2 | 1 1 1 | 2 1 | 2 | | |
For more games that might be playable and a list of all games and graphics cards visit our Gaming List
- $345.00ASUS 2026 Vivobook 14" FHD Laptop 10-Core Intel Core i5-1334U Iris Xe Graphics 12GB DDR4 256GB NVMe SSD USB-C with DP WiFi AC BT Webcam HDMI1.4 Windows 11 Home with RE USB
- $299.00ASUS Vivobook 14" FHD Laptop | Intel Core i3-1215U | Intel Iris Xe Graphics | HDMI | Blue | 8GB RAM | 128GB SSD | Windows 11 S | Bundle with USB 3.0 Hub
- $475.00HP 15.6 inch Laptop PC, Processor: 13th Generation Intel® Core™ i7, Graphics: Intel® Iris® Xe Graphics, 16 GB DDR4-3200 MHz RAM, 512GB SSD, Windows 11 Home (Silver, 15-fd0099nr)
- $435.97ASUS 2026 Vivobook 14" FHD Laptop 10-Core Intel Core i5-1334U Iris Xe Graphics 12GB DDR4 512GB NVMe SSD USB-C with DP WiFi AC BT Webcam HDMI1.4 Windows 11 Home with RE USB
- $458.70HP 15.6" HD Touchscreen Laptop 2023, 11th Gen Intel Core i5-1135G7 Up to 4.2 Ghz, Intel Iris Xe Graphics, HDMI, Webcam, Win11 +CUE Accessories (16GB RAM | 1TB SSD)
Notebook reviews with Intel Iris Plus Graphics 645 graphics card
Apple MacBook Pro 13 2019 2TB3: Intel Core i5-8257U, 13.30", 1.4 kg
External Review » Apple MacBook Pro 13 2019 2TB3
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