GeForce 920A vs GeForce GT 645M
When comparing GeForce 920A and GeForce GT 645M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 920A and GeForce GT 645M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 920A
GeForce GT 645M is a Laptop Graphics Card
Note: GeForce GT 645M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 645M here:
Main Specs
| GeForce 920A | GeForce GT 645M | |
| Power consumption (TDP) | 33 Watt | 32 Watt |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Memory type | DDR3 | DDR3\GDDR5 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce 920A has 3% more power consumption, than GeForce GT 645M.
- GeForce 920A is connected by PCIe 3.0 x8, and GeForce GT 645M uses PCIe 3.0 x16 interface.
- GeForce 920A and GeForce GT 645M have maximum RAM of 2 GB.
- GeForce 920A is used in Desktops, and GeForce GT 645M - in Laptops.
- GeForce 920A is build with Kepler 2.0 architecture, and GeForce GT 645M - with Kepler.
- GeForce 920A and GeForce GT 645M are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 920A is 202 MHz higher, than GeForce GT 645M.
Game benchmarks
| high / 1080p | 0−1 | 1−2 |
| ultra / 1080p | − | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 1−2 | 12−14 |
| medium / 1080p | 0−1 | 2−3 |
| The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 1200% more, than GeForce 920A. | ||
| ultra / 1080p | − | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 12−14 |
| medium / 1080p | − | 4−5 |
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce 920A and GeForce GT 645M have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 60−65 | 110−120 |
| medium / 768p | 27−30 | 85−90 |
| ultra / 1080p | 7−8 | 35−40 |
| 4K / 2160p | − | 10−11 |
| high / 768p | 16−18 | 60−65 |
| The average gaming FPS of GeForce GT 645M in Counter-Strike: Global Offensive is 167% more, than GeForce 920A. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 0−1 | 14−16 |
| medium / 1080p | 45−50 | 45−50 |
| GeForce 920A and GeForce GT 645M have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 45−50 | 70−75 |
| medium / 768p | 10−11 | 45−50 |
| ultra / 1080p | 0−1 | 18−20 |
| The average gaming FPS of GeForce GT 645M in Dota 2 is 106% more, than GeForce 920A. | ||
| high / 1080p | − | 2−3 |
| ultra / 1080p | − | 2−3 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 0−1 | 10−11 |
| medium / 1080p | − | 3−4 |
| ultra / 1080p | − | 5−6 |
| QHD / 1440p | − | 1−2 |
| low / 720p | 21−24 | 45−50 |
| medium / 1080p | 0−1 | 8−9 |
| The average gaming FPS of GeForce GT 645M in Fortnite is 113% more, than GeForce 920A. | ||
| high / 1080p | 0−1 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 0−1 | 14−16 |
| medium / 1080p | 0−1 | 6−7 |
| low / 768p | 18−20 | 40−45 |
| high / 1080p | 0−1 | 3−4 |
| ultra / 1080p | − | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 12−14 | 35−40 |
| The average gaming FPS of GeForce GT 645M in Grand Theft Auto V is 150% more, than GeForce 920A. | ||
| high / 1080p | − | 1−2 |
| ultra / 1080p | − | 0−1 |
| 4K / 2160p | − | 0−1 |
| low / 720p | 0−1 | 3−4 |
| medium / 1080p | − | 2−3 |
| low / 768p | 75−80 | 85−90 |
| high / 1080p | 27−30 | 55−60 |
| The average gaming FPS of GeForce GT 645M in Minecraft is 35% more, than GeForce 920A. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | − | 12−14 |
| low / 720p | 8−9 | 24−27 |
| medium / 1080p | − | 14−16 |
| The average gaming FPS of GeForce GT 645M in PLAYERUNKNOWN'S BATTLEGROUNDS is 212% more, than GeForce 920A. | ||
| ultra / 1080p | − | 3−4 |
| QHD / 1440p | − | 0−1 |
| low / 720p | 0−1 | 4−5 |
| low / 768p | 0−1 | 8−9 |
| medium / 768p | − | 7−8 |
| high / 1080p | − | 3−4 |
| ultra / 1080p | − | 3−4 |
| 4K / 2160p | − | 0−1 |
| low / 768p | 45−50 | 70−75 |
| medium / 768p | 14−16 | 35−40 |
| ultra / 1080p | 0−1 | 12−14 |
| high / 768p | 12−14 | 30−33 |
| The average gaming FPS of GeForce GT 645M in World of Tanks is 88% more, than GeForce 920A. | ||
Full Specs
| GeForce 920A | GeForce GT 645M | |
| Architecture | Kepler 2.0 | Kepler |
| Code name | GK208B | N13P-GS |
| Type | Desktop | Laptop |
| Release date | 13 March 2015 | 22 March 2012 |
| Pipelines | 384 | 384 |
| Core clock speed | 954 MHz | |
| Transistor count | 915 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 30.53 | 22.7 billion/sec |
| Floating-point performance | 441.6 gflops | 544.5 gflops |
| Memory bus width | 64 Bit | 128bit |
| Memory clock speed | 2002 MHz | 1800 MHz |
| Memory bandwidth | 16.02 GB/s | |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 API |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.5 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 3.5 | + |
| CUDA cores | 384 | |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| HDMI | + | |
| HDCP | + | |
| Maximum VGA resolution | Up to 2048x1536 | |
| 3D Blu-Ray | + | |
| Bitcoin / BTC (SHA256) | 19 Mh/s | |
| Laptop size | medium sized | |
| Optimus | + | |
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