NVIDIA · GeForce

NVIDIA GeForce 840M

The NVIDIA GeForce 840M is a graphics card released on March 12, 2014, built on the Maxwell architecture. It has 2 GB of DDR3 memory on a 64-bit bus, 16.0 GB/s of memory bandwidth, a boost clock of 1.03 GHz and a 30 W board power rating. It scores 1,098 in the PassMark G3D benchmark. It supports DirectX 12, OpenGL 4.5, Vulkan 1.3 and CUDA compute capability 5.0.

Maxwell384:24:8 (3 SMM)

8/10 key specs recorded · 24 facts

Depth: 34 recorded fields, 1 feature, 5 PassMark workloads

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 8 of 10 tracked specifications recorded.

PassMark Videocard Benchmark PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)

Shading units

n/a

Memory

2 GB

DDR3 · 64-bit

Boost clock

n/a

1.03 GHz base

Board power

30 W

Performance

The NVIDIA GeForce 840M scores 1,098 in the PassMark G3D benchmark, higher than 56.5% of the 2,658 GPUs benchmarked (PassMark rank #1,332), measured across 5,102 submitted results. Its PassMark G2D score is 150.

PassMark G3D Mark

1,098

Rank #1,332
Faster than 56.5% of 2,658 GPUs
5,102 samples

0relative to the fastest GPU on record (41,928)

PassMark workload tests

DirectX 9 18 fps

reference: fastest recorded 526 fps · faster than 34.4% of 1,675 GPUs

DirectX 10 4 fps

reference: fastest recorded 231 fps · faster than 32.1% of 1,602 GPUs

DirectX 11 6 fps

reference: fastest recorded 362 fps · faster than 18.3% of 1,430 GPUs

DirectX 12 7 fps

reference: fastest recorded 213 fps · faster than 24.3% of 1,274 GPUs

GPU Compute 625 ops/s

reference: fastest recorded 26,591 ops/s · faster than 33.5% of 1,447 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the NVIDIA GeForce 840M averages DirectX 9 18 fps, DirectX 10 4 fps, DirectX 11 6 fps, DirectX 12 7 fps and GPU Compute 625 ops/s, across 5,102 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

As stated by PassMark

Category Mobile

Bus interface PCIe 3.0 x16

Max memory 2 GB

Core clock 1029 MHz

DirectX 11.2

OpenGL 4.5

Max TDP 30 W

First benchmarked 2014-05-23

Samples 5,102

PassMark listing (collected 2026-09-30)

PassMark's own listing for the NVIDIA GeForce 840M states the PCIe 3.0 x16 interface, up to 2 GB of memory, a core clock of 1029 MHz, DirectX 11.2 and OpenGL 4.5, first benchmarked on 2014-05-23. These are PassMark's figures, shown separately from the specification tables above.

Graphics processor

Architecture Maxwell

Codename 384:24:8 (3 SMM)

Chip Not recorded

Process node Not recorded

Transistors Not recorded

Die size Not recorded

The NVIDIA GeForce 840M is based on the Maxwell architecture and uses the 384:24:8 (3 SMM) graphics processor.

Clock speeds

Base clock 1.03 GHz

Boost clock Not recorded

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The NVIDIA GeForce 840M runs at a base clock of 1.03 GHz.

Memory

Size 2 GB

Type DDR3

Bus width 64-bit

Bandwidth 16.0 GB/s

The NVIDIA GeForce 840M is equipped with 2 GB of DDR3 memory, uses a 64-bit memory bus and delivers 16.0 GB/s of memory bandwidth.

Board and power

The NVIDIA GeForce 840M has a board power rating of 30 W and it connects over PCIe 3.0 x16.

Board power (TDP) 30 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface PCIe 3.0 x16

Market

Launched March 12, 2014

Launch price Not recorded

Status Not recorded

Form factor Not recorded

Segment Desktop

Series GeForce

The NVIDIA GeForce 840M was released on March 12, 2014.

Benchmarks

PassMark G3D 1,098

PassMark G2D 150

Rank #1,332

Samples 5,102

Graphics and compute APIs

The NVIDIA GeForce 840M supports DirectX 12, OpenGL 4.5, Vulkan 1.3 and CUDA compute capability 5.0.

DirectX 12

OpenGL 4.5

Vulkan 1.3

CUDA compute capability 5.0

Feex has no recorded OpenCL version for the NVIDIA GeForce 840M.

Features

The NVIDIA GeForce 840M has 1 supported feature recorded outside the media engine. A feature that no source mentions is shown as not listed, never as unsupported.

Compute and AI

Supported: CUDA Compute capability 5.0

Support for NVIDIA's CUDA computing platform, used by many creative, scientific and AI applications.

Not listed (2)

No source Feex holds states whether the NVIDIA GeForce 840M supports Tensor cores and NVLink / SLI. That is silence, not a statement that they are unsupported.

The NVIDIA GeForce 840M supports CUDA (Compute capability 5.0) under Compute and AI.

Naming and aliases

The NVIDIA GeForce 840M is also known by other names: PassMark also lists it as NVIDIA GeForce 840M (Mobile).

Other names (PassMark) NVIDIA GeForce 840M (Mobile)

Frequently asked questions

How much VRAM does the NVIDIA GeForce 840M have?

The NVIDIA GeForce 840M has 2 GB of DDR3 memory on a 64-bit bus. Its memory bandwidth is 16.0 GB/s.

How much power does the NVIDIA GeForce 840M use and what power supply does it need?

The NVIDIA GeForce 840M has a board power rating of 30 W.

How fast is the NVIDIA GeForce 840M?

The NVIDIA GeForce 840M scores 1,098 in the PassMark G3D benchmark, higher than 56.5% of the 2,658 GPUs benchmarked. Its PassMark rank is #1,332. In the PassMark DirectX 12 test it averages 7 fps.

What is the CUDA compute capability of the NVIDIA GeForce 840M?

The NVIDIA GeForce 840M has CUDA compute capability 5.0.

What bus interface does the NVIDIA GeForce 840M use?

The NVIDIA GeForce 840M connects over PCIe 3.0 x16.

When was the NVIDIA GeForce 840M released?

The NVIDIA GeForce 840M was released on March 12, 2014.

Corrections to this record

After an audit, 1 empty field was filled from sources. Each change is listed with its old value, new value, rule and sources.

1 filled value

Architecture: Maxwell (was Not recorded). Rule: Architecture from chip codename. chip GM108 -> Maxwell. Sources: Wikipedia: List of Nvidia graphics processing units (revision 1377107724).

The audit log is public: all changes for this GPU, the corrections overview and the method.