NVIDIA GeForce 840M: specs and benchmarks

NVIDIA GeForce 840M

Summary

NVIDIA started GeForce 840M sales 12 March 2014. This is Maxwell architecture notebook card based on 28 nm manufacturing process and primarily aimed at office use. 4 GB of DDR3 memory clocked at 2 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 16.02 GB / s.

Compatibility-wise, this is card attached via PCIe 3.0 x8 interface. Power consumption is at 33 Watt.

It provides poor gaming and benchmark performance at 3.46 percent of a leader's which is NVIDIA GeForce RTX 2080 Ti.

General info

Of GeForce 840M's architecture, market type and release date.
Place in performance rating
 
Architecture
Maxwell
 
Code name
N15S-GT
 
Type
Laptop
 
Release date
12 March 2014
 

Technical specs

GeForce 840M's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce 840M's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Pipelines
384
 
Core clock speed
1029 MHz
 
Manufacturing process technology
28 nm
 
Power consumption (TDP)
33 Watt
 
of 900 (Tesla S2050)
Texture fill rate
17.98 GTexel / s
 
Floating-point performance
863.2 gflops
 
of 2918.4 (GRID K340)

Compatibility, dimensions and requirements

Information on GeForce 840M's compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
Laptop size
medium sized
 
Bus support
PCI Express 2.0, PCI Express 3.0
 
Interface
PCIe 3.0 x8
 

Memory

Parameters of memory installed on GeForce 840M: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
DDR3
 
Maximum RAM amount
4 GB
 
of 6084 (Quadro P3200)
Memory bus width
64 Bit
 
of 4096 (Radeon R9 Fury)
Memory clock speed
2000 MHz
 
Memory bandwidth
16.02 GB / s
 
of 960 (ATI Rage Fury)
Shared memory
-
 

Video outputs and ports

Types and number of video connectors present on GeForce 840M.
Display Connectors
No outputs
 

Technologies

Technological solutions and APIs supported by GeForce 840M. You'll probably need this information if you need some particular technology for your purposes.
GPU Boost
+
 
GameWorks
+
 
Optimus
+
 
GameWorks
+
 
CUDA
+
 
GeForce Experience
+
 

API support

APIs supported by GeForce 840M, sometimes including their particular versions.
DirectX
DirectX 12 (FL 11_0), Shader 5.0
 
OpenGL
4.5
 

Benchmark performance

Non-gaming benchmarks performance of GeForce 840M. Note that overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

3.46

3DMark Ice Storm GPU

119888

3DMark Cloud Gate GPU

8724

3DMark Fire Strike Score

1361

3DMark Fire Strike Graphics

1573

3DMark 11 Performance GPU

2338

3DMark Vantage Performance

7191

Unigine Heaven 3.0

23

Passmark

1037

Octane Render OctaneBench

12

Mining hashrates

Cryptocurrency mining performance of GeForce 840M. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
92 Mh/s
 
 

Game benchmarks

Let's see how good GeForce 840M is for gaming. Particular gaming benchmark results are measured in FPS. Comparisons with system requirements are included, but remember that sometimes official requirements may reflect real performance inaccurately.

AMD equivalent

We believe that the nearest equivalent to GeForce 840M from AMD is Mobility Radeon HD 4850, which is slower by 1% and lower by 6 positions in our rating.

User rating

Here you can see the user rating of the video card, as well as rate it yourself.

Advices and comments

Here you can ask a question about GeForce 840M, agree or disagree with our judgements, or report an error or mismatch.