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NVIDIA GeForce 840A
- Graphics Processor
- GM108
- Cores
- 384
- TMUs
- 16
- ROPs
- 8
- Memory Size
- 2 GB
- Memory Type
- DDR3
- Bus Width
- 64 bit
GPU
Recommended Gaming Resolutions:
- 1366x768
- 1600x900
- 1920x1080
The GeForce 840A was a mobile graphics chip by NVIDIA, launched on March 17th, 2014. Built on the 28 nm process, and based on the GM108 graphics processor, the chip supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_0, which can be problematic with newer DirectX 12 titles. The GM108 graphics processor is a relatively small chip with a die area of only 77 mm² and 1,020 million transistors. It features 384 shading units, 16 texture mapping units, and 8 ROPs. NVIDIA has paired 2,048 MB DDR3 memory with the GeForce 840A, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 1029 MHz, which can be boosted up to 1124 MHz, memory is running at 1001 MHz.
Its power draw is rated at 33 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. GeForce 840A is connected to the rest of the system using a PCI-Express 3.0 x8 interface.
Its power draw is rated at 33 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. GeForce 840A is connected to the rest of the system using a PCI-Express 3.0 x8 interface.
Graphics Processor
Mobile Graphics
- Release Date
- Mar 17th, 2014
- Generation
- GeForce 800A
- Predecessor
- GeForce 700A
- Successor
- GeForce 900A
- Production
- End-of-life
- Bus Interface
- PCIe 3.0 x8
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- Base Clock
- 1029 MHz
- Boost Clock
- 1124 MHz
- Memory Clock
-
1001 MHz
2 Gbps effective
Memory
- Memory Size
- 2 GB
- Memory Type
- DDR3
- Memory Bus
- 64 bit
- Bandwidth
- 16.02 GB/s
Render Config
- Shading Units
- 384
- TMUs
- 16
- ROPs
- 8
- SMM Count
- 3
- L1 Cache
- 64 KB (per SMM)
- L2 Cache
- 1024 KB
Theoretical Performance
- Pixel Rate
- 8.992 GPixel/s
- Texture Rate
- 17.98 GTexel/s
- FP32 (float)
- 863.2 GFLOPS
- FP64 (double)
- 26.98 GFLOPS (1:32)
Board Design
- Slot Width
- IGP
- TDP
- 33 W
- Outputs
- Portable Device Dependent
- Power Connectors
- None
Graphics Features
- DirectX
- 12 (11_0)
- OpenGL
- 4.6
- OpenCL
- 3.0
- Vulkan
- 1.3
- CUDA
- 5.0
- Shader Model
- 6.7 (5.1)
GM108 GPU Notes
| NVENC: No Support NVDEC: No Support PureVideo HD: VP6 VDPAU: Feature Set E Latest Drivers: Windows Vista: GeForce Release 365.19 Quadro Release R346 U7 (348.40) / R352 BETA (352.86) Windows 7 / 8 / 8.1 (x32 / x64): GeForce Release 391.35 / 474.89 GeForce Mobile Release 391.35 / 425.31 Quadro Release R390 U9 (392.37) / R440 U4 (441.66) Quadro Mobile Release R390 U9 (392.37) / R418 U9 (426.78) WIndows 10 / 11 (x32 / x64): GeForce Release 391.35 / 474.89 GeForce Mobile Release 391.35 / 425.31 Quadro Release R390 U9 (392.37) / R470 U16 (474.82) Quadro Mobile Release R390 U9 (392.37) / R418 U9 (426.78) |
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