GeForce 840M vs GeForce GT 745A
When comparing GeForce 840M and GeForce GT 745A, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 840M and GeForce GT 745A is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GT 745A
GeForce 840M is a Laptop Graphics Card
Note: GeForce 840M 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 840M here:
Main Specs
| GeForce 840M | GeForce GT 745A | |
| Power consumption (TDP) | 33 Watt | 33 Watt |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Memory type | DDR3 | DDR3 |
| Maximum RAM amount | 4 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
| Check Price |
- Both graphics cards have the same power consumption of 33 Watt.
- GeForce 840M is connected by PCIe 3.0 x8, and GeForce GT 745A uses PCIe 3.0 x16 interface.
- GeForce 840M has 2 GB more memory, than GeForce GT 745A.
- GeForce 840M is used in Laptops, and GeForce GT 745A - in Desktops.
- GeForce 840M is build with Maxwell architecture, and GeForce GT 745A - with Kepler.
- Core clock speed of GeForce 840M is 192 MHz higher, than GeForce GT 745A.
- GeForce 840M and GeForce GT 745A are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 840M is 200 MHz higher, than GeForce GT 745A.
Game benchmarks
| high / 1080p | 1−2 | 2−3 |
| ultra / 1080p | 0−1 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 12−14 | 12−14 |
| medium / 1080p | 3−4 | 4−5 |
| GeForce 840M and GeForce GT 745A have the same average FPS in Assassin's Creed Odyssey. | ||
| high / 1080p | − | 6−7 |
| ultra / 1080p | 4−5 | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 16−18 | 16−18 |
| medium / 1080p | 5−6 | 7−8 |
| The average gaming FPS of GeForce GT 745A in Battlefield 5 is 11% more, than GeForce 840M. | ||
| low / 768p | 45−50 | 50−55 |
| high / 1080p | 40−45 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 745A in Call of Duty: Warzone is 4% more, than GeForce 840M. | ||
| low / 768p | 120−130 | 110−120 |
| medium / 768p | 90−95 | 85−90 |
| ultra / 1080p | 40−45 | 40−45 |
| QHD / 1440p | 24−27 | 24−27 |
| 4K / 2160p | 18−20 | − |
| high / 768p | 65−70 | 60−65 |
| The average gaming FPS of GeForce 840M in Counter-Strike: Global Offensive is 6% more, than GeForce GT 745A. | ||
| low / 768p | 85−90 | 60−65 |
| ultra / 1080p | 16−18 | 18−20 |
| medium / 1080p | 40−45 | 50−55 |
| The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 11% more, than GeForce GT 745A. | ||
| low / 768p | 75−80 | 70−75 |
| medium / 768p | 50−55 | 50−55 |
| ultra / 1080p | 24−27 | 24−27 |
| The average gaming FPS of GeForce 840M in Dota 2 is 2% more, than GeForce GT 745A. | ||
| high / 1080p | 2−3 | 3−4 |
| ultra / 1080p | 2−3 | 3−4 |
| 4K / 2160p | 0−1 | 1−2 |
| low / 720p | 12−14 | 12−14 |
| medium / 1080p | 3−4 | 4−5 |
| The average gaming FPS of GeForce GT 745A in Far Cry 5 is 20% more, than GeForce 840M. | ||
| high / 1080p | 10−11 | 10−12 |
| ultra / 1080p | 5−6 | 6−7 |
| QHD / 1440p | 2−3 | 2−3 |
| low / 720p | 50−55 | 50−55 |
| medium / 1080p | 10−12 | 14−16 |
| The average gaming FPS of GeForce GT 745A in Fortnite is 6% more, than GeForce 840M. | ||
| high / 1080p | 4−5 | 7−8 |
| ultra / 1080p | − | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 16−18 | 18−20 |
| medium / 1080p | 7−8 | 9−10 |
| The average gaming FPS of GeForce GT 745A in Forza Horizon 4 is 33% more, than GeForce 840M. | ||
| low / 768p | 45−50 | 45−50 |
| medium / 768p | − | 40−45 |
| high / 1080p | 5−6 | 7−8 |
| ultra / 1080p | 2−3 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 35−40 | − |
| The average gaming FPS of GeForce GT 745A in Grand Theft Auto V is 5% more, than GeForce 840M. | ||
| high / 1080p | 1−2 | 1−2 |
| ultra / 1080p | 0−1 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 5−6 | 7−8 |
| medium / 1080p | 3−4 | 4−5 |
| The average gaming FPS of GeForce GT 745A in Metro Exodus is 33% more, than GeForce 840M. | ||
| low / 768p | 90−95 | 80−85 |
| high / 1080p | 85−90 | 80−85 |
| ultra / 1080p | 70−75 | 70−75 |
| medium / 1080p | 90−95 | − |
| The average gaming FPS of GeForce 840M in Minecraft is 6% more, than GeForce GT 745A. | ||
| high / 1080p | − | 14−16 |
| ultra / 1080p | 12−14 | 12−14 |
| low / 720p | 27−30 | 24−27 |
| medium / 1080p | 14−16 | 14−16 |
| The average gaming FPS of GeForce 840M in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 745A. | ||
| ultra / 1080p | 4−5 | 6−7 |
| QHD / 1440p | 0−1 | − |
| low / 720p | 6−7 | 8−9 |
| medium / 1080p | − | 7−8 |
| The average gaming FPS of GeForce GT 745A in Red Dead Redemption 2 is 40% more, than GeForce 840M. | ||
| low / 768p | 12−14 | 16−18 |
| medium / 768p | 9−10 | 12−14 |
| high / 1080p | 4−5 | 6−7 |
| ultra / 1080p | 3−4 | 4−5 |
| 4K / 2160p | 0−1 | 2−3 |
| The average gaming FPS of GeForce GT 745A in The Witcher 3: Wild Hunt is 42% more, than GeForce 840M. | ||
| low / 768p | 75−80 | 80−85 |
| medium / 768p | 35−40 | 35−40 |
| ultra / 1080p | 16−18 | 16−18 |
| high / 768p | 30−35 | 30−35 |
| The average gaming FPS of GeForce GT 745A in World of Tanks is 2% more, than GeForce 840M. | ||
Full Specs
| GeForce 840M | GeForce GT 745A | |
| Architecture | Maxwell | Kepler |
| Code name | N15S-GT | GK107 |
| Type | Laptop | Desktop |
| Release date | 12 March 2014 | 26 August 2013 |
| Pipelines | 384 | 384 |
| Core clock speed | 1029 MHz | 837 MHz |
| Boost Clock | 1124 MHz | 915 MHz |
| Transistor count | 1,270 million | |
| Manufacturing process technology | 28 nm | 28 nm |
| Texture fill rate | 17.98 | 29.28 |
| Floating-point performance | 863.2 gflops | 642.8 gflops |
| Memory bus width | 64 Bit | 128 Bit |
| Memory clock speed | 2000 MHz | 1800 MHz |
| Memory bandwidth | 16.02 GB/s | 28.8 GB/s |
| Shared memory | - | |
| DirectX | 12 (11_0) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.5 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | + | 3.0 |
| Bus support | PCI Express 2.0, PCI Express 3.0 | |
| Bitcoin / BTC (SHA256) | 92 Mh/s | 26 Mh/s |
| Laptop size | medium sized | |
| Optimus | + | |
| GPU Boost | 2.0 | |
| GameWorks | + | |
| Check Price |