GeForce GT 645M vs GRID K520
In this comparison between GeForce GT 645M and GRID K520 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 GRID K520 will be their preference. Study the comparison tables below and make your choice.
GRID K520
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 | GRID K520 | |
| Power consumption (TDP) | 32 Watt | 225 Watt |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Supplementary power connectors | 1x 8-pin | |
| Memory type | DDR3\GDDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GRID K520 has 603% more power consumption, than GeForce GT 645M.
- Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
- GRID K520 has 2 GB more memory, than GeForce GT 645M.
- GeForce GT 645M is used in Laptops, and GRID K520 - in Desktops.
- GeForce GT 645M and GRID K520 are build with Kepler architecture.
- GeForce GT 645M and GRID K520 are manufactured by 28 nm process technology.
- Memory clock speed of GRID K520 is 3200 MHz higher, than GeForce GT 645M.
Game benchmarks
| high / 1080p | 1−2 | 16−18 |
| ultra / 1080p | 0−1 | 9−10 |
| QHD / 1440p | 0−1 | 4−5 |
| 4K / 2160p | − | 4−5 |
| low / 720p | 12−14 | 30−35 |
| medium / 1080p | 2−3 | 20−22 |
| The average gaming FPS of GRID K520 in Assassin's Creed Odyssey is 360% more, than GeForce GT 645M. | ||
| high / 1080p | − | 24−27 |
| ultra / 1080p | 3−4 | 21−24 |
| QHD / 1440p | 0−1 | 9−10 |
| 4K / 2160p | − | 6−7 |
| low / 720p | 12−14 | 55−60 |
| medium / 1080p | 4−5 | 27−30 |
| The average gaming FPS of GRID K520 in Battlefield 5 is 414% more, than GeForce GT 645M. | ||
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 45−50 | − |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 10% more, than GRID K520. | ||
| low / 768p | 110−120 | 210−220 |
| medium / 768p | 85−90 | 180−190 |
| ultra / 1080p | 35−40 | 100−110 |
| QHD / 1440p | − | 55−60 |
| 4K / 2160p | 10−11 | 30−35 |
| high / 768p | 60−65 | 140−150 |
| The average gaming FPS of GRID K520 in Counter-Strike: Global Offensive is 119% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 55−60 |
| ultra / 1080p | 14−16 | 40−45 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of GRID K520 in Cyberpunk 2077 is 8% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 110−120 |
| medium / 768p | 45−50 | 95−100 |
| ultra / 1080p | 18−20 | 65−70 |
| The average gaming FPS of GRID K520 in Dota 2 is 102% more, than GeForce GT 645M. | ||
| high / 1080p | 2−3 | 18−20 |
| ultra / 1080p | 2−3 | 18−20 |
| QHD / 1440p | − | 16−18 |
| 4K / 2160p | 0−1 | 6−7 |
| low / 720p | 10−11 | 40−45 |
| medium / 1080p | 3−4 | 21−24 |
| The average gaming FPS of GRID K520 in Far Cry 5 is 525% more, than GeForce GT 645M. | ||
| high / 1080p | − | 27−30 |
| ultra / 1080p | 5−6 | 21−24 |
| QHD / 1440p | 1−2 | 16−18 |
| low / 720p | 45−50 | 100−110 |
| medium / 1080p | 8−9 | 55−60 |
| The average gaming FPS of GRID K520 in Fortnite is 233% more, than GeForce GT 645M. | ||
| high / 1080p | 3−4 | 27−30 |
| ultra / 1080p | − | 21−24 |
| QHD / 1440p | 0−1 | 10−11 |
| 4K / 2160p | − | 10−11 |
| low / 720p | 14−16 | 55−60 |
| medium / 1080p | 6−7 | 30−35 |
| The average gaming FPS of GRID K520 in Forza Horizon 4 is 387% more, than GeForce GT 645M. | ||
| low / 768p | 40−45 | 90−95 |
| medium / 768p | − | 80−85 |
| high / 1080p | 3−4 | 30−35 |
| ultra / 1080p | 2−3 | 12−14 |
| QHD / 1440p | 0−1 | 4−5 |
| medium / 720p | 35−40 | − |
| The average gaming FPS of GRID K520 in Grand Theft Auto V is 187% more, than GeForce GT 645M. | ||
| high / 1080p | 1−2 | 10−11 |
| ultra / 1080p | 0−1 | 8−9 |
| 4K / 2160p | 0−1 | 3−4 |
| low / 720p | 3−4 | 30−35 |
| medium / 1080p | 2−3 | 14−16 |
| The average gaming FPS of GRID K520 in Metro Exodus is 850% more, than GeForce GT 645M. | ||
| low / 768p | 85−90 | 110−120 |
| high / 1080p | 55−60 | − |
| medium / 1080p | − | 100−110 |
| The average gaming FPS of GRID K520 in Minecraft is 32% more, than GeForce GT 645M. | ||
| high / 1080p | 14−16 | 24−27 |
| ultra / 1080p | 12−14 | 18−20 |
| low / 720p | 24−27 | 60−65 |
| medium / 1080p | 14−16 | 24−27 |
| The average gaming FPS of GRID K520 in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than GeForce GT 645M. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | 3−4 | 10−11 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 4−5 | 30−35 |
| medium / 1080p | − | 16−18 |
| The average gaming FPS of GRID K520 in Red Dead Redemption 2 is 425% more, than GeForce GT 645M. | ||
| low / 768p | 8−9 | 60−65 |
| medium / 768p | 7−8 | 35−40 |
| high / 1080p | 3−4 | 20−22 |
| ultra / 1080p | 3−4 | 12−14 |
| 4K / 2160p | 0−1 | 8−9 |
| The average gaming FPS of GRID K520 in The Witcher 3: Wild Hunt is 560% more, than GeForce GT 645M. | ||
| low / 768p | 70−75 | 100−110 |
| medium / 768p | 35−40 | 60−65 |
| ultra / 1080p | 12−14 | 35−40 |
| high / 768p | 30−33 | 55−60 |
| The average gaming FPS of GRID K520 in World of Tanks is 71% more, than GeForce GT 645M. | ||
Full Specs
| GeForce GT 645M | GRID K520 | |
| Architecture | Kepler | Kepler |
| Code name | N13P-GS | GK104 |
| Type | Laptop | Workstation |
| Release date | 22 March 2012 | 23 July 2013 |
| Pipelines | 384 | 1536 |
| Core clock speed | 745 MHz | |
| Transistor count | 1,270 million | 3,540 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 22.7 billion/sec | 95.36 |
| Floating-point performance | 544.5 gflops | 2x 2,448 gflops |
| Length | 267 mm | |
| Memory bus width | 128bit | 256 Bit |
| Memory clock speed | 1800 MHz | 5000 MHz |
| Memory bandwidth | 160.0 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 | + | 3.0 |
| 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 | 76 Mh/s |
| Laptop size | medium sized | |
| Optimus | + | |
| Check Price |