GeForce GT 645M vs GeForce GT 740A
In this comparison between GeForce GT 645M and GeForce GT 740A you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 645M will be the best choice, for others GeForce GT 740A will be their preference. Study the comparison tables below and make your choice.
GeForce GT 740A
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 GT 645M | GeForce GT 740A | |
| Power consumption (TDP) | 32 Watt | 33 Watt |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Memory type | DDR3\GDDR5 | DDR3 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce GT 740A has 3% more power consumption, than GeForce GT 645M.
- GeForce GT 645M is connected by PCIe 3.0 x16, and GeForce GT 740A uses PCIe 3.0 x8 interface.
- GeForce GT 645M and GeForce GT 740A have maximum RAM of 2 GB.
- GeForce GT 645M is used in Laptops, and GeForce GT 740A - in Desktops.
- GeForce GT 645M is build with Kepler architecture, and GeForce GT 740A - with Kepler 2.0.
- GeForce GT 645M and GeForce GT 740A are manufactured by 28 nm process technology.
- Memory clock speed of GeForce GT 645M and GeForce GT 740A is 1800 MHz.
Game benchmarks
| high / 1080p | 1−2 | 0−1 |
| ultra / 1080p | 0−1 | − |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 1−2 |
| medium / 1080p | 2−3 | 0−1 |
| The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 1200% more, than GeForce GT 740A. | ||
| ultra / 1080p | 3−4 | − |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 0−1 |
| medium / 1080p | 4−5 | − |
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce GT 645M and GeForce GT 740A have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 110−120 | 60−65 |
| medium / 768p | 85−90 | 27−30 |
| ultra / 1080p | 35−40 | 7−8 |
| 4K / 2160p | 10−11 | − |
| high / 768p | 60−65 | 16−18 |
| The average gaming FPS of GeForce GT 645M in Counter-Strike: Global Offensive is 167% more, than GeForce GT 740A. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 14−16 | 0−1 |
| medium / 1080p | 45−50 | 45−50 |
| GeForce GT 645M and GeForce GT 740A have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 70−75 | 45−50 |
| medium / 768p | 45−50 | 10−11 |
| ultra / 1080p | 18−20 | 0−1 |
| The average gaming FPS of GeForce GT 645M in Dota 2 is 106% more, than GeForce GT 740A. | ||
| high / 1080p | 2−3 | − |
| ultra / 1080p | 2−3 | − |
| 4K / 2160p | 0−1 | − |
| low / 720p | 10−11 | 0−1 |
| medium / 1080p | 3−4 | − |
| ultra / 1080p | 5−6 | − |
| QHD / 1440p | 1−2 | − |
| low / 720p | 45−50 | 21−24 |
| medium / 1080p | 8−9 | 0−1 |
| The average gaming FPS of GeForce GT 645M in Fortnite is 113% more, than GeForce GT 740A. | ||
| high / 1080p | 3−4 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 0−1 |
| medium / 1080p | 6−7 | 0−1 |
| low / 768p | 40−45 | 18−20 |
| high / 1080p | 3−4 | 0−1 |
| ultra / 1080p | 2−3 | − |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 35−40 | 12−14 |
| The average gaming FPS of GeForce GT 645M in Grand Theft Auto V is 150% more, than GeForce GT 740A. | ||
| high / 1080p | 1−2 | − |
| ultra / 1080p | 0−1 | − |
| 4K / 2160p | 0−1 | − |
| low / 720p | 3−4 | 0−1 |
| medium / 1080p | 2−3 | − |
| low / 768p | 85−90 | 75−80 |
| high / 1080p | 55−60 | 27−30 |
| The average gaming FPS of GeForce GT 645M in Minecraft is 35% more, than GeForce GT 740A. | ||
| high / 1080p | 14−16 | − |
| ultra / 1080p | 12−14 | − |
| low / 720p | 24−27 | 8−9 |
| medium / 1080p | 14−16 | − |
| The average gaming FPS of GeForce GT 645M in PLAYERUNKNOWN'S BATTLEGROUNDS is 212% more, than GeForce GT 740A. | ||
| ultra / 1080p | 3−4 | − |
| QHD / 1440p | 0−1 | − |
| low / 720p | 4−5 | 0−1 |
| low / 768p | 8−9 | 0−1 |
| medium / 768p | 7−8 | − |
| high / 1080p | 3−4 | − |
| ultra / 1080p | 3−4 | − |
| 4K / 2160p | 0−1 | − |
| low / 768p | 70−75 | 45−50 |
| medium / 768p | 35−40 | 14−16 |
| ultra / 1080p | 12−14 | 0−1 |
| high / 768p | 30−33 | 12−14 |
| The average gaming FPS of GeForce GT 645M in World of Tanks is 88% more, than GeForce GT 740A. | ||
Full Specs
| GeForce GT 645M | GeForce GT 740A | |
| Architecture | Kepler | Kepler 2.0 |
| Code name | N13P-GS | GK208 |
| Type | Laptop | Desktop |
| Release date | 22 March 2012 | 26 August 2013 |
| Pipelines | 384 | 384 |
| Core clock speed | 980 MHz | |
| Transistor count | 1,270 million | 915 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 22.7 billion/sec | 31.36 |
| Floating-point performance | 544.5 gflops | 752.6 gflops |
| Memory bus width | 128bit | 64 Bit |
| Memory clock speed | 1800 MHz | 1800 MHz |
| Memory bandwidth | 14.4 GB/s | |
| Shared memory | - | |
| DirectX | 12 API | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.1 | 1.2 |
| 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 | + | |
| Check Price |
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