GMA 3100 vs GeForce 945A

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Primary details

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

Place in the ranking641not rated
Place by popularitynot in top-100not in top-100
Power efficiency9.99no data
ArchitectureMaxwell (2014−2017)Generation 4.0 (2006−2007)
GPU code nameGM108Bearlake
Market segmentLaptopLaptop
Release date13 March 2015 (9 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 cores384no data
Core clock speed1006 MHz400 MHz
Boost clock speed1189 MHzno data
Manufacturing process technology28 nm90 nm
Power consumption (TDP)33 Watt13 Watt
Texture fill rate28.541.600
Floating-point processing power0.9132 TFLOPSno data
ROPs84
TMUs244

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).

InterfacePCIe 3.0 x8PCIe 1.0 x16

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 typeGDDR5System Shared
Maximum RAM amount1 GBSystem Shared
Memory bus width64 BitSystem Shared
Memory clock speed1253 MHzSystem Shared
Memory bandwidth40.1 GB/sno data
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

API compatibility

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

DirectX12 (11_0)9.0c
Shader Model5.13.0
OpenGL4.62.0
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA5.0-

Pros & cons summary


Recency 13 March 2015 9 May 2007
Chip lithography 28 nm 90 nm
Power consumption (TDP) 33 Watt 13 Watt

GeForce 945A has an age advantage of 7 years, and a 221.4% more advanced lithography process.

GMA 3100, on the other hand, has 153.8% lower power consumption.

We couldn't decide between GeForce 945A and GMA 3100. 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 945A
GeForce 945A
Intel GMA 3100
GMA 3100

Comparisons with similar GPUs

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Community ratings

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2.5 10 votes

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2.7 281 vote

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Questions & comments

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