GeForce GT 645M vs Radeon 540
When choosing between GeForce GT 645M and Radeon 540, 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 Radeon 540.
Radeon 540
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 | Radeon 540 | |
| Power consumption (TDP) | 32 Watt | 50 Watt |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Supplementary power connectors | None | |
| Memory type | DDR3\GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | No outputs | 1x DVI, 1x HDMI, 1x DisplayPort |
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- Radeon 540 has 56% more power consumption, than GeForce GT 645M.
- GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon 540 uses PCIe 3.0 x8 interface.
- GeForce GT 645M and Radeon 540 have maximum RAM of 2 GB.
- GeForce GT 645M is used in Laptops, and Radeon 540 - in Desktops.
- GeForce GT 645M is build with Kepler architecture, and Radeon 540 - with GCN 4.0.
- GeForce GT 645M is manufactured by 28 nm process technology, and Radeon 540 - by 14 nm process technology.
- Memory clock speed of Radeon 540 is 5200 MHz higher, than GeForce GT 645M.
Game benchmarks
| high / 1080p | 1−2 | 6−7 |
| ultra / 1080p | 0−1 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 14−16 |
| medium / 1080p | 2−3 | 7−8 |
| The average gaming FPS of Radeon 540 in Assassin's Creed Odyssey is 80% more, than GeForce GT 645M. | ||
| high / 1080p | − | 10−12 |
| ultra / 1080p | 3−4 | 9−10 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 21−24 |
| medium / 1080p | 4−5 | 10−12 |
| The average gaming FPS of Radeon 540 in Battlefield 5 is 100% more, than GeForce GT 645M. | ||
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 6% more, than Radeon 540. | ||
| low / 768p | 110−120 | 120−130 |
| medium / 768p | 85−90 | 100−110 |
| ultra / 1080p | 35−40 | 50−55 |
| QHD / 1440p | − | 27−30 |
| 4K / 2160p | 10−11 | − |
| high / 768p | 60−65 | 75−80 |
| The average gaming FPS of Radeon 540 in Counter-Strike: Global Offensive is 20% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 55−60 |
| ultra / 1080p | 14−16 | 16−18 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 12% more, than Radeon 540. | ||
| low / 768p | 70−75 | 75−80 |
| medium / 768p | 45−50 | 55−60 |
| ultra / 1080p | 18−20 | 30−35 |
| The average gaming FPS of Radeon 540 in Dota 2 is 19% more, than GeForce GT 645M. | ||
| high / 1080p | 2−3 | 7−8 |
| ultra / 1080p | 2−3 | 7−8 |
| 4K / 2160p | 0−1 | 3−4 |
| low / 720p | 10−11 | 16−18 |
| medium / 1080p | 3−4 | 8−9 |
| The average gaming FPS of Radeon 540 in Far Cry 5 is 150% more, than GeForce GT 645M. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | 5−6 | 10−11 |
| QHD / 1440p | 1−2 | − |
| low / 720p | 45−50 | 55−60 |
| medium / 1080p | 8−9 | 20−22 |
| The average gaming FPS of Radeon 540 in Fortnite is 45% more, than GeForce GT 645M. | ||
| high / 1080p | 3−4 | 10−12 |
| ultra / 1080p | − | 10−11 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 24−27 |
| medium / 1080p | 6−7 | 12−14 |
| The average gaming FPS of Radeon 540 in Forza Horizon 4 is 100% more, than GeForce GT 645M. | ||
| low / 768p | 40−45 | 50−55 |
| medium / 768p | − | 40−45 |
| high / 1080p | 3−4 | 10−12 |
| ultra / 1080p | 2−3 | 6−7 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 35−40 | − |
| The average gaming FPS of Radeon 540 in Grand Theft Auto V is 43% more, than GeForce GT 645M. | ||
| high / 1080p | 1−2 | 4−5 |
| ultra / 1080p | 0−1 | 3−4 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 3−4 | 10−12 |
| medium / 1080p | 2−3 | 6−7 |
| The average gaming FPS of Radeon 540 in Metro Exodus is 250% more, than GeForce GT 645M. | ||
| low / 768p | 85−90 | 90−95 |
| high / 1080p | 55−60 | 85−90 |
| ultra / 1080p | − | 75−80 |
| medium / 1080p | − | 90−95 |
| The average gaming FPS of Radeon 540 in Minecraft is 25% more, than GeForce GT 645M. | ||
| high / 1080p | 14−16 | 16−18 |
| ultra / 1080p | 12−14 | 14−16 |
| low / 720p | 24−27 | 30−33 |
| medium / 1080p | 14−16 | 16−18 |
| The average gaming FPS of Radeon 540 in PLAYERUNKNOWN'S BATTLEGROUNDS is 17% more, than GeForce GT 645M. | ||
| ultra / 1080p | 3−4 | 7−8 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 4−5 | 10−12 |
| medium / 1080p | − | 10−11 |
| The average gaming FPS of Radeon 540 in Red Dead Redemption 2 is 125% more, than GeForce GT 645M. | ||
| low / 768p | 8−9 | 21−24 |
| medium / 768p | 7−8 | 14−16 |
| high / 1080p | 3−4 | 8−9 |
| ultra / 1080p | 3−4 | 6−7 |
| 4K / 2160p | 0−1 | − |
| The average gaming FPS of Radeon 540 in The Witcher 3: Wild Hunt is 160% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 85−90 |
| medium / 768p | 35−40 | 40−45 |
| ultra / 1080p | 12−14 | 18−20 |
| high / 768p | 30−33 | 35−40 |
| The average gaming FPS of Radeon 540 in World of Tanks is 21% more, than GeForce GT 645M. | ||
Full Specs
| GeForce GT 645M | Radeon 540 | |
| Architecture | Kepler | GCN 4.0 |
| Code name | N13P-GS | Lexa |
| Type | Laptop | Desktop |
| Release date | 22 March 2012 | 26 March 2019 |
| Pipelines | 384 | 512 |
| Core clock speed | 1100 MHz | |
| Boost Clock | 1124 MHz | |
| Transistor count | 1,270 million | 2,200 million |
| Manufacturing process technology | 28 nm | 14 nm |
| Texture fill rate | 22.7 billion/sec | 35.97 |
| Floating-point performance | 544.5 gflops | |
| Length | 145 mm | |
| Memory bus width | 128bit | 64 Bit |
| Memory clock speed | 1800 MHz | 7000 MHz |
| Memory bandwidth | 56 GB/s | |
| Shared memory | - | |
| DirectX | 12 API | 12 (12_0) |
| Shader Model | 5.1 | 6.4 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.1 | 2.0 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | + | |
| 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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