GeForce GT 640M LE vs GRID K520
If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and GRID K520, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M LE stacks up against GRID K520, check out specs charts below.
GRID K520
GeForce GT 640M LE is a Laptop Graphics Card
Note: GeForce GT 640M LE 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 640M LE here:
Main Specs
| GeForce GT 640M LE | GRID K520 | |
| Power consumption (TDP) | 20 Watt | 225 Watt |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Supplementary power connectors | 1x 8-pin | |
| Memory type | DDR3\DDR5 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Display Connectors | No outputs | No outputs |
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- GRID K520 has 1025% more power consumption, than GeForce GT 640M LE.
- GeForce GT 640M LE is connected by PCIe 2.0 x16, and GRID K520 uses PCIe 3.0 x16 interface.
- GRID K520 has 2 GB more memory, than GeForce GT 640M LE.
- GeForce GT 640M LE is used in Laptops, and GRID K520 - in Desktops.
- GeForce GT 640M LE is build with Fermi / Kepler architecture, and GRID K520 - with Kepler.
- GeForce GT 640M LE and GRID K520 are manufactured by 28 nm process technology.
- Memory clock speed of GRID K520 is 3200 MHz higher, than GeForce GT 640M LE.
Game benchmarks
| high / 1080p | 0−1 | 16−18 |
| ultra / 1080p | − | 9−10 |
| QHD / 1440p | 0−1 | 4−5 |
| 4K / 2160p | − | 4−5 |
| low / 720p | 1−2 | 30−35 |
| medium / 1080p | 0−1 | 20−22 |
| The average gaming FPS of GRID K520 in Assassin's Creed Odyssey is 3100% more, than GeForce GT 640M LE. | ||
| high / 1080p | − | 24−27 |
| ultra / 1080p | − | 21−24 |
| QHD / 1440p | 0−1 | 9−10 |
| 4K / 2160p | − | 6−7 |
| low / 720p | 0−1 | 55−60 |
| medium / 1080p | − | 27−30 |
| low / 768p | 50−55 | 45−50 |
| high / 1080p | 45−50 | − |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 640M LE in Call of Duty: Warzone is 10% more, than GRID K520. | ||
| low / 768p | 60−65 | 210−220 |
| medium / 768p | 27−30 | 180−190 |
| ultra / 1080p | 7−8 | 100−110 |
| QHD / 1440p | − | 55−60 |
| 4K / 2160p | − | 30−35 |
| high / 768p | 16−18 | 140−150 |
| The average gaming FPS of GRID K520 in Counter-Strike: Global Offensive is 478% more, than GeForce GT 640M LE. | ||
| low / 768p | 70−75 | 55−60 |
| ultra / 1080p | 0−1 | 40−45 |
| medium / 1080p | 45−50 | 45−50 |
| The average gaming FPS of GeForce GT 640M LE in Cyberpunk 2077 is 15% more, than GRID K520. | ||
| low / 768p | 45−50 | 110−120 |
| medium / 768p | 10−11 | 95−100 |
| ultra / 1080p | 0−1 | 65−70 |
| The average gaming FPS of GRID K520 in Dota 2 is 265% more, than GeForce GT 640M LE. | ||
| high / 1080p | − | 18−20 |
| ultra / 1080p | − | 18−20 |
| QHD / 1440p | − | 16−18 |
| 4K / 2160p | − | 6−7 |
| low / 720p | 0−1 | 40−45 |
| medium / 1080p | − | 21−24 |
| high / 1080p | − | 27−30 |
| ultra / 1080p | − | 21−24 |
| QHD / 1440p | − | 16−18 |
| low / 720p | 21−24 | 100−110 |
| medium / 1080p | 0−1 | 55−60 |
| The average gaming FPS of GRID K520 in Fortnite is 377% more, than GeForce GT 640M LE. | ||
| high / 1080p | 0−1 | 27−30 |
| ultra / 1080p | − | 21−24 |
| QHD / 1440p | 0−1 | 10−11 |
| 4K / 2160p | − | 10−11 |
| low / 720p | 0−1 | 55−60 |
| medium / 1080p | 0−1 | 30−35 |
| low / 768p | 18−20 | 90−95 |
| medium / 768p | − | 80−85 |
| high / 1080p | 0−1 | 30−35 |
| ultra / 1080p | − | 12−14 |
| QHD / 1440p | 0−1 | 4−5 |
| medium / 720p | 12−14 | − |
| The average gaming FPS of GRID K520 in Grand Theft Auto V is 384% more, than GeForce GT 640M LE. | ||
| high / 1080p | − | 10−11 |
| ultra / 1080p | − | 8−9 |
| 4K / 2160p | − | 3−4 |
| low / 720p | 0−1 | 30−35 |
| medium / 1080p | − | 14−16 |
| low / 768p | 75−80 | 110−120 |
| high / 1080p | 27−30 | − |
| medium / 1080p | − | 100−110 |
| The average gaming FPS of GRID K520 in Minecraft is 49% more, than GeForce GT 640M LE. | ||
| high / 1080p | − | 24−27 |
| ultra / 1080p | − | 18−20 |
| low / 720p | 8−9 | 60−65 |
| medium / 1080p | − | 24−27 |
| The average gaming FPS of GRID K520 in PLAYERUNKNOWN'S BATTLEGROUNDS is 675% more, than GeForce GT 640M LE. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | − | 10−11 |
| QHD / 1440p | − | 0−1 |
| low / 720p | 0−1 | 30−35 |
| medium / 1080p | − | 16−18 |
| low / 768p | 0−1 | 60−65 |
| medium / 768p | − | 35−40 |
| high / 1080p | − | 20−22 |
| ultra / 1080p | − | 12−14 |
| 4K / 2160p | − | 8−9 |
| low / 768p | 45−50 | 100−110 |
| medium / 768p | 14−16 | 60−65 |
| ultra / 1080p | 0−1 | 35−40 |
| high / 768p | 12−14 | 55−60 |
| The average gaming FPS of GRID K520 in World of Tanks is 200% more, than GeForce GT 640M LE. | ||
Full Specs
| GeForce GT 640M LE | GRID K520 | |
| Architecture | Fermi / Kepler | Kepler |
| Code name | N13P-LP | GK104 |
| Type | Laptop | Workstation |
| Release date | 22 March 2012 | 23 July 2013 |
| Pipelines | 384 | 1536 |
| Core clock speed | 745 MHz | |
| Transistor count | 585 million | 3,540 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 95.36 | |
| Floating-point performance | 384.0 gflops | 2x 2,448 gflops |
| Length | 267 mm | |
| Memory bus width | 128bit | 256 Bit |
| Memory clock speed | 1800 - 4000 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 | N/A | 1.1.126 |
| CUDA | + | 3.0 |
| CUDA cores | Up to 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) | 14 Mh/s | 76 Mh/s |
| Laptop size | medium sized | |
| Optimus | + | |
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