GeForce 405M vs 945A

Primary details

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

Place in performance ranking	608	not rated
Place by popularity	not in top-100	not in top-100
Architecture	Maxwell (2014−2018)	GT2xx (2009−2012)
GPU code name	GM108	GT218
Market segment	Desktop	Laptop
Release date	13 March 2015 (9 years ago)	11 May 2012 (12 years ago)
Current price	no data	$163

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	16
CUDA cores	no data	16
Core clock speed	1072 MHz	606 MHz
Boost clock speed	1189 MHz	no data
Number of transistors	no data	260 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	33 Watt	14 Watt
Texture fill rate	28.54	4.848
Floating-point performance	903.2 gflops	38.78 gflops
Gigaflops	no data	73

Form factor & compatibility

Information on GeForce 945A and GeForce 405M compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). 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.

Bus support	no data	PCI-E 2.0
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Width	MXM Module	no 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 type	GDDR5	GDDR3, DDR3
Maximum RAM amount	1 GB	Up to 512 MB
Memory bus width	64 Bit	64 Bit
Memory clock speed	5012 MHz	Up to 800 (DDR3), Up to 800 (GDDR3) MHz
Memory bandwidth	40.1 GB/s	25.6 GB/s
Shared memory	no data	-

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 Connectors	No outputs	DisplayPort, HDMI, VGA, Dual Link DVI, Single Link DVI
Multi monitor support	no data	+
HDMI	no data	+
Maximum VGA resolution	no data	2048x1536

Supported technologies

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

Power management

no data

8.0

API compatibility

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

DirectX	12 (11_0)	12 API
Shader Model	5.1	4.1
OpenGL	4.6	4.5
OpenCL	1.2	1.1
Vulkan	1.1.126	N/A
CUDA	5.0	+

Pros & cons summary

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Recency	13 March 2015	11 May 2012
Chip lithography	28 nm	40 nm
Power consumption (TDP)	33 Watt	14 Watt

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