GeForce GT 645M vs Quadro CX
If you are going to buy a new graphics card and are choosing between GeForce GT 645M and Quadro CX, 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 645M stacks up against Quadro CX, check out specs charts below.
Quadro CX
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 | Quadro CX | |
| Power consumption (TDP) | 32 Watt | 150 Watt |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Supplementary power connectors | 1x 6-pin | |
| Memory type | DDR3\GDDR5 | GDDR3 |
| Maximum RAM amount | 2 GB | 1536 MB |
| Display Connectors | No outputs | 1x DVI, 2x DisplayPort, 1x S-Video |
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- Quadro CX has 368% more power consumption, than GeForce GT 645M.
- GeForce GT 645M is connected by PCIe 3.0 x16, and Quadro CX uses PCIe 2.0 x16 interface.
- Quadro CX has 1534 GB more memory, than GeForce GT 645M.
- GeForce GT 645M is used in Laptops, and Quadro CX - in Desktops.
- GeForce GT 645M is build with Kepler architecture, and Quadro CX - with Tesla 2.0.
- GeForce GT 645M is manufactured by 28 nm process technology, and Quadro CX - by 55 nm process technology.
- Memory clock speed of GeForce GT 645M is 200 MHz higher, than Quadro CX.
Game benchmarks
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 10−12 |
| medium / 1080p | 2−3 | 2−3 |
| GeForce GT 645M and Quadro CX have the same average FPS in Assassin's Creed Odyssey. | ||
| ultra / 1080p | 3−4 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 12−14 |
| medium / 1080p | 4−5 | 4−5 |
| GeForce GT 645M and Quadro CX have the same average FPS in Battlefield 5. | ||
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 45−50 |
| QHD / 1440p | 0−1 | 0−1 |
| GeForce GT 645M and Quadro CX have the same average FPS in Call of Duty: Warzone. | ||
| low / 768p | 110−120 | 110−120 |
| medium / 768p | 85−90 | 85−90 |
| ultra / 1080p | 35−40 | 35−40 |
| 4K / 2160p | 10−11 | 10−11 |
| high / 768p | 60−65 | 60−65 |
| GeForce GT 645M and Quadro CX have the same average FPS in Counter-Strike: Global Offensive. | ||
| low / 768p | 70−75 | 70−75 |
| ultra / 1080p | 14−16 | 14−16 |
| medium / 1080p | 45−50 | 45−50 |
| GeForce GT 645M and Quadro CX have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 70−75 | 70−75 |
| medium / 768p | 45−50 | 45−50 |
| ultra / 1080p | 18−20 | 18−20 |
| GeForce GT 645M and Quadro CX have the same average FPS in Dota 2. | ||
| high / 1080p | 2−3 | 2−3 |
| ultra / 1080p | 2−3 | 2−3 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 10−11 | 10−11 |
| medium / 1080p | 3−4 | 3−4 |
| GeForce GT 645M and Quadro CX have the same average FPS in Far Cry 5. | ||
| ultra / 1080p | 5−6 | 5−6 |
| QHD / 1440p | 1−2 | 1−2 |
| low / 720p | 45−50 | 45−50 |
| medium / 1080p | 8−9 | 8−9 |
| GeForce GT 645M and Quadro CX have the same average FPS in Fortnite. | ||
| high / 1080p | 3−4 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 14−16 |
| medium / 1080p | 6−7 | 6−7 |
| GeForce GT 645M and Quadro CX have the same average FPS in Forza Horizon 4. | ||
| low / 768p | 40−45 | 40−45 |
| high / 1080p | 3−4 | 3−4 |
| ultra / 1080p | 2−3 | 2−3 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 35−40 | 35−40 |
| GeForce GT 645M and Quadro CX have the same average FPS in Grand Theft Auto V. | ||
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 3−4 | 3−4 |
| medium / 1080p | 2−3 | 2−3 |
| GeForce GT 645M and Quadro CX have the same average FPS in Metro Exodus. | ||
| low / 768p | 85−90 | 85−90 |
| high / 1080p | 55−60 | 55−60 |
| GeForce GT 645M and Quadro CX have the same average FPS in Minecraft. | ||
| high / 1080p | 14−16 | 14−16 |
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 24−27 | 24−27 |
| medium / 1080p | 14−16 | 14−16 |
| GeForce GT 645M and Quadro CX have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS. | ||
| ultra / 1080p | 3−4 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 4−5 | 4−5 |
| GeForce GT 645M and Quadro CX have the same average FPS in Red Dead Redemption 2. | ||
| low / 768p | 8−9 | 8−9 |
| medium / 768p | 7−8 | 7−8 |
| high / 1080p | 3−4 | 3−4 |
| ultra / 1080p | 3−4 | 3−4 |
| 4K / 2160p | 0−1 | 0−1 |
| GeForce GT 645M and Quadro CX have the same average FPS in The Witcher 3: Wild Hunt. | ||
| low / 768p | 70−75 | 70−75 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 12−14 | 12−14 |
| high / 768p | 30−33 | 30−33 |
| GeForce GT 645M and Quadro CX have the same average FPS in World of Tanks. | ||
Full Specs
| GeForce GT 645M | Quadro CX | |
| Architecture | Kepler | Tesla 2.0 |
| Code name | N13P-GS | GT200B |
| Type | Laptop | Workstation |
| Release date | 22 March 2012 | 11 November 2008 |
| Pipelines | 384 | 192 |
| Core clock speed | 602 MHz | |
| Transistor count | 1,270 million | 1,400 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Texture fill rate | 22.7 billion/sec | 38.53 |
| Floating-point performance | 544.5 gflops | 462.3 gflops |
| Length | 267 mm | |
| Memory bus width | 128bit | 384 Bit |
| Memory clock speed | 1800 MHz | 1600 MHz |
| Memory bandwidth | 76.8 GB/s | |
| Shared memory | - | |
| DirectX | 12 API | 11.1 (10_0) |
| Shader Model | 5.1 | 4.0 |
| OpenGL | 4.5 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | 1.1.126 | N/A |
| CUDA | + | 1.3 |
| 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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