Iris Plus Graphics 645: specs and benchmarks
Aggregate performance score
Iris Plus Graphics 645 provides poor gaming and benchmark performance at 4.45% of a leader's which is GeForce RTX 4090.
Summary
Intel started Iris Plus Graphics 645 sales 7 October 2019. This is a Generation 9.5 architecture notebook card based on 14 nm+++ manufacturing process and primarily aimed at office use.
Compatibility-wise, this is a graphics card attached via Ring Bus interface. Power consumption is at 15 Watt.
Primary details
Some basic facts about Iris Plus Graphics 645: architecture, market segment, release date etc.
| Place in the ranking | 665 | |
| Place by popularity | not in top-100 | |
| Power efficiency | 20.32 | of 100.00 (Radeon 890M) |
| Architecture | Generation 9.5 (2016−2020) | |
| GPU code name | Coffee Lake GT3e | |
| Market segment | Laptop | |
| Release date | 7 October 2019 (5 years ago) |
Detailed specifications
Iris Plus Graphics 645's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Iris Plus Graphics 645's performance, but for precise assessment you have to consider its benchmark and gaming test results.
| Pipelines / CUDA cores | 384 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 300 MHz | of 2670 MHz (Arc B580) |
| Boost clock speed | 1050 MHz | of 3599 MHz (Radeon RX 7990 XTX) |
| Manufacturing process technology | 14 nm+++ | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 15 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 50.40 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 0.8064 TFLOPS | of 109.7 (GeForce RTX 5090) |
| ROPs | 6 | of 192 (Radeon RX 7900 XTX) |
| TMUs | 48 | of 1280 (Data Center GPU Max NEXT) |
Form factor & compatibility
This section provides details about the physical dimensions of Iris Plus Graphics 645 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | Ring Bus |
VRAM capacity and type
Parameters of memory installed on Iris Plus Graphics 645: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | System Shared | |
| Maximum RAM amount | System Shared | of 294912 (Radeon Instinct MI325X) |
| Memory bus width | System Shared | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | System Shared | of 20000 (RTX 5000 Ada Generation Mobile) |
| Shared memory | + |
Connectivity and outputs
Types and number of video connectors present on Iris Plus Graphics 645. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | Portable Device Dependent |
Supported technologies
Technological solutions and APIs supported by Iris Plus Graphics 645. You'll probably need this information if you need some particular technology for your purposes.
| Quick Sync | + |
API compatibility
APIs supported by Iris Plus Graphics 645, sometimes including their particular versions.
| DirectX | 12 (12_1) | |
| Shader Model | 6.4 | |
| OpenGL | 4.6 | |
| OpenCL | 3.0 | |
| Vulkan | 1.3 |
Benchmark performance
Synthetic benchmark performance of Iris Plus Graphics 645. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
3DMark 11 Performance GPU
3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.
3DMark Fire Strike Graphics
Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.
3DMark Time Spy Graphics
Send your test results of Iris Plus Graphics 645.
Gaming performance
Let's see how good Iris Plus Graphics 645 is for gaming. Particular gaming benchmark results are measured in frames per second. Comparisons with game system requirements are included, but remember that sometimes official requirements may reflect reality inaccurately.
Average FPS across all PC games
Here are the average frames per second in a large set of popular modern games across different resolutions:
| Full HD | 26 |
FPS performance in popular games
Full HD
Low Preset
| Cyberpunk 2077 | 7−8 |
Full HD
Medium Preset
| Assassin's Creed Odyssey | 10−12 | |
| Assassin's Creed Valhalla | 3−4 | |
| Battlefield 5 | 9−10 | |
| Call of Duty: Modern Warfare | 9−10 | |
| Cyberpunk 2077 | 7−8 | |
| Far Cry 5 | 8−9 | |
| Far Cry New Dawn | 10−12 | |
| Forza Horizon 4 | 24−27 | |
| Hitman 3 | 9−10 | |
| Horizon Zero Dawn | 27−30 | |
| Metro Exodus | 8−9 | |
| Red Dead Redemption 2 | 10−11 | |
| Shadow of the Tomb Raider | 14−16 | |
| Watch Dogs: Legion | 40−45 |
Full HD
High Preset
| Assassin's Creed Odyssey | 10−12 | |
| Assassin's Creed Valhalla | 3−4 | |
| Battlefield 5 | 9−10 | |
| Call of Duty: Modern Warfare | 9−10 | |
| Cyberpunk 2077 | 7−8 | |
| Far Cry 5 | 8−9 | |
| Far Cry New Dawn | 10−12 | |
| Forza Horizon 4 | 24−27 | |
| Hitman 3 | 9−10 | |
| Horizon Zero Dawn | 27−30 | |
| Metro Exodus | 8−9 | |
| Red Dead Redemption 2 | 10−11 | |
| Shadow of the Tomb Raider | 14−16 | |
| The Witcher 3: Wild Hunt | 16−18 | |
| Watch Dogs: Legion | 40−45 |
Full HD
Ultra Preset
| Assassin's Creed Odyssey | 10−12 | |
| Assassin's Creed Valhalla | 3−4 | |
| Call of Duty: Modern Warfare | 9−10 | |
| Cyberpunk 2077 | 7−8 | |
| Far Cry 5 | 8−9 | |
| Forza Horizon 4 | 24−27 | |
| Hitman 3 | 9−10 | |
| Horizon Zero Dawn | 27−30 | |
| Shadow of the Tomb Raider | 14−16 | |
| The Witcher 3: Wild Hunt | 16−18 | |
| Watch Dogs: Legion | 40−45 |
Full HD
Epic Preset
| Red Dead Redemption 2 | 10−11 |
1440p
High Preset
| Battlefield 5 | 7−8 | |
| Far Cry New Dawn | 6−7 |
1440p
Ultra Preset
| Assassin's Creed Odyssey | 4−5 | |
| Call of Duty: Modern Warfare | 3−4 | |
| Cyberpunk 2077 | 2−3 | |
| Far Cry 5 | 5−6 | |
| Forza Horizon 4 | 4−5 | |
| Hitman 3 | 8−9 | |
| Horizon Zero Dawn | 9−10 | |
| The Witcher 3: Wild Hunt | 3−4 | |
| Watch Dogs: Legion | 24−27 |
1440p
Epic Preset
| Red Dead Redemption 2 | 8−9 |
4K
High Preset
| Battlefield 5 | 2−3 | |
| Far Cry New Dawn | 2−3 | |
| Hitman 3 | 0−1 | |
| Metro Exodus | 0−1 |
4K
Ultra Preset
| Assassin's Creed Odyssey | 3−4 | |
| Assassin's Creed Valhalla | 2−3 | |
| Call of Duty: Modern Warfare | 1−2 | |
| Cyberpunk 2077 | 0−1 | |
| Far Cry 5 | 2−3 | |
| Forza Horizon 4 | 2−3 | |
| Watch Dogs: Legion | 1−2 |
4K
Epic Preset
| Red Dead Redemption 2 | 5−6 |
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with Iris Plus Graphics 645 according to our statistics.
