GeForce GT 645M vs GeForce GTX 280
When choosing between GeForce GT 645M and GeForce GTX 280, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 645M and GeForce GTX 280.
GeForce GTX 280
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 GTX 280 | |
| Power consumption (TDP) | 32 Watt | 236 Watt |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Supplementary power connectors | 6-pin & 8-pin | |
| Memory type | DDR3\GDDR5 | GDDR3 |
| Maximum RAM amount | 2 GB | 1 GB |
| Display Connectors | No outputs | 2x DVI, 1x S-Video |
| Check Price |
- GeForce GTX 280 has 637% more power consumption, than GeForce GT 645M.
- GeForce GT 645M is connected by PCIe 3.0 x16, and GeForce GTX 280 uses PCIe 2.0 x16 interface.
- GeForce GT 645M has 1 GB more memory, than GeForce GTX 280.
- GeForce GT 645M is used in Laptops, and GeForce GTX 280 - in Desktops.
- GeForce GT 645M is build with Kepler architecture, and GeForce GTX 280 - with Tesla 2.0.
- GeForce GT 645M is manufactured by 28 nm process technology, and GeForce GTX 280 - by 65 nm process technology.
- Memory clock speed of GeForce GT 645M is 693 MHz higher, than GeForce GTX 280.
Game benchmarks
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 12−14 |
| medium / 1080p | 2−3 | 3−4 |
| The average gaming FPS of GeForce GTX 280 in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M. | ||
| ultra / 1080p | 3−4 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 16−18 |
| medium / 1080p | 4−5 | 5−6 |
| The average gaming FPS of GeForce GTX 280 in Battlefield 5 is 28% more, than GeForce GT 645M. | ||
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 45−50 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 11% more, than GeForce GTX 280. | ||
| low / 768p | 110−120 | 120−130 |
| medium / 768p | 85−90 | 90−95 |
| ultra / 1080p | 35−40 | 40−45 |
| QHD / 1440p | − | 21−24 |
| 4K / 2160p | 10−11 | 18−20 |
| high / 768p | 60−65 | 65−70 |
| The average gaming FPS of GeForce GTX 280 in Counter-Strike: Global Offensive is 11% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 85−90 |
| ultra / 1080p | 14−16 | 16−18 |
| medium / 1080p | 45−50 | 40−45 |
| The average gaming FPS of GeForce GTX 280 in Cyberpunk 2077 is 8% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 75−80 |
| medium / 768p | 45−50 | 50−55 |
| ultra / 1080p | 18−20 | 24−27 |
| The average gaming FPS of GeForce GTX 280 in Dota 2 is 10% more, than GeForce GT 645M. | ||
| high / 1080p | 2−3 | 2−3 |
| ultra / 1080p | 2−3 | 2−3 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 10−11 | 10−12 |
| medium / 1080p | 3−4 | 3−4 |
| GeForce GT 645M and GeForce GTX 280 have the same average FPS in Far Cry 5. | ||
| high / 1080p | − | 10−11 |
| ultra / 1080p | 5−6 | 5−6 |
| QHD / 1440p | 1−2 | 2−3 |
| low / 720p | 45−50 | 50−55 |
| medium / 1080p | 8−9 | 10−12 |
| The average gaming FPS of GeForce GTX 280 in Fortnite is 13% more, than GeForce GT 645M. | ||
| high / 1080p | 3−4 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 16−18 |
| medium / 1080p | 6−7 | 7−8 |
| The average gaming FPS of GeForce GTX 280 in Forza Horizon 4 is 12% more, than GeForce GT 645M. | ||
| low / 768p | 40−45 | 40−45 |
| high / 1080p | 3−4 | 5−6 |
| ultra / 1080p | 2−3 | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 35−40 | 35−40 |
| The average gaming FPS of GeForce GTX 280 in Grand Theft Auto V is 4% more, than GeForce GT 645M. | ||
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 3−4 | 5−6 |
| medium / 1080p | 2−3 | 3−4 |
| The average gaming FPS of GeForce GTX 280 in Metro Exodus is 50% more, than GeForce GT 645M. | ||
| low / 768p | 85−90 | 90−95 |
| high / 1080p | 55−60 | 85−90 |
| ultra / 1080p | − | 70−75 |
| medium / 1080p | − | 90−95 |
| The average gaming FPS of GeForce GTX 280 in Minecraft is 25% more, than GeForce GT 645M. | ||
| high / 1080p | 14−16 | − |
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 24−27 | 27−30 |
| medium / 1080p | 14−16 | 14−16 |
| The average gaming FPS of GeForce GTX 280 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 645M. | ||
| ultra / 1080p | 3−4 | 4−5 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 4−5 | 6−7 |
| The average gaming FPS of GeForce GTX 280 in Red Dead Redemption 2 is 25% more, than GeForce GT 645M. | ||
| low / 768p | 8−9 | 12−14 |
| medium / 768p | 7−8 | 8−9 |
| high / 1080p | 3−4 | 4−5 |
| ultra / 1080p | 3−4 | 3−4 |
| 4K / 2160p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GTX 280 in The Witcher 3: Wild Hunt is 40% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 75−80 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 12−14 | 16−18 |
| high / 768p | 30−33 | 30−35 |
| The average gaming FPS of GeForce GTX 280 in World of Tanks is 7% more, than GeForce GT 645M. | ||
Full Specs
| GeForce GT 645M | GeForce GTX 280 | |
| Architecture | Kepler | Tesla 2.0 |
| Code name | N13P-GS | GT200 |
| Type | Laptop | Desktop |
| Release date | 22 March 2012 | 16 June 2008 |
| Pipelines | 384 | 240 |
| Core clock speed | 1296 MHz | |
| Transistor count | 1,270 million | 1,400 million |
| Manufacturing process technology | 28 nm | 65 nm |
| Texture fill rate | 22.7 billion/sec | 48.2 billion/sec |
| Floating-point performance | 544.5 gflops | 622.1 gflops |
| Length | 10.5" (267 mm) (26.7 cm) | |
| Memory bus width | 128bit | 512 Bit |
| Memory clock speed | 1800 MHz | 1107 MHz |
| Memory bandwidth | 141.7 GB/s | |
| Shared memory | - | |
| DirectX | 12 API | 11.1 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.5 | 2.1 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | + |
| CUDA cores | 384 | 240 |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| Height | 4.376" (111 mm) (11.1 cm) | |
| SLI options | + | |
| Multi monitor support | + | |
| HDMI | + | |
| HDCP | + | |
| Maximum VGA resolution | Up to 2048x1536 | 2048x1536 |
| Audio input for HDMI | S/PDIF | |
| 3D Blu-Ray | + | |
| Bitcoin / BTC (SHA256) | 19 Mh/s | |
| Laptop size | medium sized | |
| Optimus | + | |
| Check Price |
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