GeForce 8400M GT vs 940MX

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking691not rated
Place by popularitynot in top-100not in top-100
Power efficiency12.33no data
ArchitectureMaxwell (2014−2017)Tesla (2006−2010)
GPU code nameGM107G86
Market segmentLaptopLaptop
Release date28 June 2016 (8 years ago)9 May 2007 (17 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores51216
Core clock speed795 MHz450 MHz
Boost clock speed861 MHzno data
Number of transistors1,870 million210 million
Manufacturing process technology28 nm80 nm
Power consumption (TDP)23 Watt14 Watt
Texture fill rate27.553.600
Floating-point processing power0.8817 TFLOPS0.0288 TFLOPS
ROPs84
TMUs328

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizemedium sizedno data
Bus supportPCI Express 3.0no data
InterfacePCIe 3.0 x8PCIe 1.0 x16
Supplementary power connectorsNoneno data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeDDR3, GDDR5GDDR3
Maximum RAM amount4 GB512 MB
Memory bus width64 Bit128 Bit
Memory clock speed1253 MHz600 MHz
Memory bandwidth40.1 GB/s19.2 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputsNo outputs

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

GPU Boost2.0no data
Optimus+-
GameWorks+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (11_0)11.1 (10_0)
Shader Model5.14.0
OpenGL4.53.3
OpenCL1.21.1
Vulkan1.1.126N/A
CUDA+1.1

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.



Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

GeForce 940MX 1518
+2200%
8400M GT 66

Pros & cons summary


Recency 28 June 2016 9 May 2007
Maximum RAM amount 4 GB 512 MB
Chip lithography 28 nm 80 nm
Power consumption (TDP) 23 Watt 14 Watt

GeForce 940MX has an age advantage of 9 years, a 700% higher maximum VRAM amount, and a 185.7% more advanced lithography process.

8400M GT, on the other hand, has 64.3% lower power consumption.

We couldn't decide between GeForce 940MX and GeForce 8400M GT. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce 940MX
GeForce 940MX
NVIDIA GeForce 8400M GT
GeForce 8400M GT

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.4 2171 vote

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2.5 22 votes

Rate GeForce 8400M GT on a scale of 1 to 5:

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Questions & comments

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