GeForce 840A vs GeForce GT 745A
If you are going to buy a new graphics card and are choosing between GeForce 840A and GeForce GT 745A, 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 840A stacks up against GeForce GT 745A, check out specs charts below.
GeForce 840A
GeForce GT 745A
Main Specs
| GeForce 840A | 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 | 2 GB | 2 GB |
| Display Connectors | No outputs | No outputs |
- Both graphics cards have the same power consumption of 33 Watt.
- GeForce 840A is connected by PCIe 3.0 x8, and GeForce GT 745A uses PCIe 3.0 x16 interface.
- GeForce 840A and GeForce GT 745A have maximum RAM of 2 GB.
- Both cards are used in Desktops.
- GeForce 840A is build with Maxwell architecture, and GeForce GT 745A - with Kepler.
- Core clock speed of GeForce 840A is 192 MHz higher, than GeForce GT 745A.
- GeForce 840A and GeForce GT 745A are manufactured by 28 nm process technology.
- Memory clock speed of GeForce 840A is 202 MHz higher, than GeForce GT 745A.
Game benchmarks
| high / 1080p | 3−4 | 2−3 |
| ultra / 1080p | 2−3 | 0−1 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 14−16 | 12−14 |
| medium / 1080p | 5−6 | 4−5 |
| The average gaming FPS of GeForce 840A in Assassin's Creed Odyssey is 33% more, than GeForce GT 745A. | ||
| high / 1080p | − | 6−7 |
| ultra / 1080p | 7−8 | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 18−20 | 16−18 |
| medium / 1080p | 8−9 | 7−8 |
| The average gaming FPS of GeForce 840A in Battlefield 5 is 10% more, than GeForce GT 745A. | ||
| low / 768p | 45−50 | 50−55 |
| high / 1080p | 30−35 | 40−45 |
| QHD / 1440p | 0−1 | 0−1 |
| The average gaming FPS of GeForce GT 745A in Call of Duty: Warzone is 17% more, than GeForce 840A. | ||
| 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 840A in Counter-Strike: Global Offensive is 6% more, than GeForce GT 745A. | ||
| low / 768p | 80−85 | 60−65 |
| ultra / 1080p | 14−16 | 18−20 |
| medium / 1080p | 40−45 | 50−55 |
| The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 4% more, than GeForce GT 745A. | ||
| low / 768p | 75−80 | 70−75 |
| medium / 768p | 50−55 | 50−55 |
| ultra / 1080p | 27−30 | 24−27 |
| The average gaming FPS of GeForce 840A in Dota 2 is 4% more, than GeForce GT 745A. | ||
| high / 1080p | 5−6 | 3−4 |
| ultra / 1080p | − | 3−4 |
| 4K / 2160p | 2−3 | 1−2 |
| low / 720p | 14−16 | 12−14 |
| medium / 1080p | 6−7 | 4−5 |
| The average gaming FPS of GeForce 840A in Far Cry 5 is 40% more, than GeForce GT 745A. | ||
| high / 1080p | 12−14 | 10−12 |
| ultra / 1080p | 7−8 | 6−7 |
| QHD / 1440p | − | 2−3 |
| low / 720p | 50−55 | 50−55 |
| medium / 1080p | 14−16 | 14−16 |
| The average gaming FPS of GeForce 840A in Fortnite is 4% more, than GeForce GT 745A. | ||
| high / 1080p | 7−8 | 7−8 |
| ultra / 1080p | − | 5−6 |
| QHD / 1440p | 0−1 | 0−1 |
| low / 720p | 20−22 | 18−20 |
| medium / 1080p | 9−10 | 9−10 |
| GeForce 840A and GeForce GT 745A have the same average FPS in Forza Horizon 4. | ||
| low / 768p | 45−50 | 45−50 |
| medium / 768p | − | 40−45 |
| high / 1080p | 8−9 | 7−8 |
| ultra / 1080p | 5−6 | 3−4 |
| QHD / 1440p | 0−1 | 0−1 |
| medium / 720p | 40−45 | − |
| The average gaming FPS of GeForce 840A in Grand Theft Auto V is 5% more, than GeForce GT 745A. | ||
| high / 1080p | 3−4 | 1−2 |
| ultra / 1080p | 1−2 | 0−1 |
| 4K / 2160p | 0−1 | 0−1 |
| low / 720p | 8−9 | 7−8 |
| medium / 1080p | 4−5 | 4−5 |
| The average gaming FPS of GeForce 840A in Metro Exodus is 25% more, than GeForce GT 745A. | ||
| low / 768p | 85−90 | 80−85 |
| high / 1080p | 85−90 | 80−85 |
| ultra / 1080p | 80−85 | 70−75 |
| medium / 1080p | 85−90 | − |
| The average gaming FPS of GeForce 840A in Minecraft is 7% 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 840A in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 745A. | ||
| ultra / 1080p | 7−8 | 6−7 |
| QHD / 1440p | 0−1 | − |
| low / 720p | 8−9 | 8−9 |
| medium / 1080p | − | 7−8 |
| The average gaming FPS of GeForce 840A in Red Dead Redemption 2 is 14% more, than GeForce GT 745A. | ||
| low / 768p | 16−18 | 16−18 |
| medium / 768p | 12−14 | 12−14 |
| high / 1080p | 6−7 | 6−7 |
| ultra / 1080p | 5−6 | 4−5 |
| 4K / 2160p | − | 2−3 |
| GeForce 840A and GeForce GT 745A have the same average FPS in The Witcher 3: Wild Hunt. | ||
| low / 768p | 70−75 | 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 7% more, than GeForce 840A. | ||
Full Specs
| GeForce 840A | GeForce GT 745A | |
| Architecture | Maxwell | Kepler |
| Code name | GM108 | GK107 |
| Type | Desktop | Desktop |
| Release date | 17 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 | 2002 MHz | 1800 MHz |
| Memory bandwidth | 16.02 GB/s | 28.8 GB/s |
| DirectX | 12 (11_0) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 5.0 | 3.0 |
| Bitcoin / BTC (SHA256) | 26 Mh/s | |