GeForce GT 640M vs GeForce GT 745A
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and GeForce GT 745A. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640M and GeForce GT 745A. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
GeForce GT 745A
GeForce GT 640M is a Laptop Graphics Card
Note: GeForce GT 640M 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 here:
Main Specs
| GeForce GT 640M | GeForce GT 745A | |
| Power consumption (TDP) | 32 Watt | 33 Watt |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Memory type | DDR3\GDDR5 | DDR3 |
| Maximum RAM amount | 2 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- GeForce GT 745A has 3% more power consumption, than GeForce GT 640M.
- Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
- GeForce GT 640M and GeForce GT 745A have maximum RAM of 2 GB.
- GeForce GT 640M is used in Laptops, and GeForce GT 745A - in Desktops.
- GeForce GT 640M and GeForce GT 745A are build with Kepler architecture.
- GeForce GT 640M and GeForce GT 745A are manufactured by 28 nm process technology.
- Memory clock speed of GeForce GT 640M and GeForce GT 745A is 1800 MHz.
Game benchmarks
| high / 1080p | 0−1 | 2−3 |
| ultra / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 10−12 | 12−14 |
| medium / 1080p | 2−3 | 4−5 |
| The average gaming FPS of GeForce GT 745A in Assassin's Creed Odyssey is 33% more, than GeForce GT 640M. | ||
| high / 1080p | − | 6−7 |
| ultra / 1080p | 3−4 | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 16−18 |
| medium / 1080p | 4−5 | 7−8 |
| The average gaming FPS of GeForce GT 745A in Battlefield 5 is 42% more, than GeForce GT 640M. | ||
| low / 768p | 50−55 | 50−55 |
| high / 1080p | 45−50 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 640M in Call of Duty: Warzone is 6% more, than GeForce GT 745A. | ||
| low / 768p | 110−120 | 110−120 |
| medium / 768p | 85−90 | 85−90 |
| ultra / 1080p | 35−40 | 40−45 |
| QHD / 1440p | − | 24−27 |
| 4K / 2160p | 10−11 | − |
| high / 768p | 55−60 | 60−65 |
| The average gaming FPS of GeForce GT 745A in Counter-Strike: Global Offensive is 2% more, than GeForce GT 640M. | ||
| low / 768p | 70−75 | 60−65 |
| ultra / 1080p | 12−14 | 18−20 |
| medium / 1080p | 45−50 | 50−55 |
| GeForce GT 640M and GeForce GT 745A have the same average FPS in Cyberpunk 2077. | ||
| low / 768p | 70−75 | 70−75 |
| medium / 768p | 40−45 | 50−55 |
| ultra / 1080p | 18−20 | 24−27 |
| The average gaming FPS of GeForce GT 745A in Dota 2 is 13% more, than GeForce GT 640M. | ||
| high / 1080p | 2−3 | 3−4 |
| ultra / 1080p | 2−3 | 3−4 |
| 4K / 2160p | 0−1 | 1−2 |
| low / 720p | 9−10 | 12−14 |
| medium / 1080p | 3−4 | 4−5 |
| The average gaming FPS of GeForce GT 745A in Far Cry 5 is 50% more, than GeForce GT 640M. | ||
| high / 1080p | − | 10−12 |
| ultra / 1080p | 5−6 | 6−7 |
| QHD / 1440p | 1−2 | 2−3 |
| low / 720p | 45−50 | 50−55 |
| medium / 1080p | 7−8 | 14−16 |
| The average gaming FPS of GeForce GT 745A in Fortnite is 26% more, than GeForce GT 640M. | ||
| high / 1080p | 2−3 | 7−8 |
| ultra / 1080p | − | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 18−20 |
| medium / 1080p | 5−6 | 9−10 |
| The average gaming FPS of GeForce GT 745A in Forza Horizon 4 is 71% more, than GeForce GT 640M. | ||
| low / 768p | 40−45 | 45−50 |
| medium / 768p | − | 40−45 |
| high / 1080p | 3−4 | 7−8 |
| ultra / 1080p | 2−3 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 30−35 | − |
| The average gaming FPS of GeForce GT 745A in Grand Theft Auto V is 18% more, than GeForce GT 640M. | ||
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 2−3 | 7−8 |
| medium / 1080p | 2−3 | 4−5 |
| The average gaming FPS of GeForce GT 745A in Metro Exodus is 100% more, than GeForce GT 640M. | ||
| low / 768p | 85−90 | 80−85 |
| high / 1080p | 55−60 | 80−85 |
| ultra / 1080p | − | 70−75 |
| The average gaming FPS of GeForce GT 745A in Minecraft is 13% more, than GeForce GT 640M. | ||
| 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 640M and GeForce GT 745A have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS. | ||
| ultra / 1080p | 3−4 | 6−7 |
| QHD / 1440p | 0−1 | − |
| low / 720p | 3−4 | 8−9 |
| medium / 1080p | − | 7−8 |
| The average gaming FPS of GeForce GT 745A in Red Dead Redemption 2 is 133% more, than GeForce GT 640M. | ||
| low / 768p | 7−8 | 16−18 |
| medium / 768p | 6−7 | 12−14 |
| high / 1080p | 3−4 | 6−7 |
| ultra / 1080p | − | 4−5 |
| 4K / 2160p | 0−1 | 2−3 |
| The average gaming FPS of GeForce GT 745A in The Witcher 3: Wild Hunt is 140% more, than GeForce GT 640M. | ||
| low / 768p | 70−75 | 80−85 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 12−14 | 16−18 |
| high / 768p | 27−30 | 30−35 |
| The average gaming FPS of GeForce GT 745A in World of Tanks is 13% more, than GeForce GT 640M. | ||
Full Specs
| GeForce GT 640M | GeForce GT 745A | |
| Architecture | Kepler | Kepler |
| Code name | N13P-GS | GK107 |
| Type | Laptop | Desktop |
| Release date | 22 March 2012 | 26 August 2013 |
| Pipelines | 384 | 384 |
| Core clock speed | 837 MHz | |
| Boost Clock | 645 MHz | 915 MHz |
| Transistor count | 1,270 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 29.28 | |
| Floating-point performance | 480.0 gflops | 642.8 gflops |
| Memory bus width | 128bit | 128 Bit |
| Memory clock speed | 1800 - 4000 MHz | 1800 MHz |
| Memory bandwidth | 28.8 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) | 18 Mh/s | 26 Mh/s |
| Laptop size | medium sized | |
| Optimus | + | |
| Check Price |