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NVIDIA GeForce 840M
- Graphics Processor
- GM108S
- 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 840M was a mobile graphics chip by NVIDIA, launched on March 12th, 2014. Built on the 28 nm process, and based on the GM108S graphics processor, in its N15S-GT-S-A2 variant, 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 GM108S 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 840M, 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 840M 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 840M is connected to the rest of the system using a PCI-Express 3.0 x8 interface.
Graphics Processor
Mobile Graphics
- Release Date
- Mar 12th, 2014
- Generation
- GeForce 800M
- Predecessor
- GeForce 700M
- Successor
- GeForce 900M
- 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)
GM108S GPU Notes
| NVENC: No Support NVDEC: No Support PureVideo HD: VP6 VDPAU: Feature Set E |
Devices based on this design (1)
| Name | GPU Clock | Boost Clock | Memory Clock | Other Changes |
|---|---|---|---|---|
| 1029 MHz | 1124 MHz | 1001 MHz |
Apr 16th, 2024 05:45 EDT
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