RTX A40 vs GeForce GT 650M

Primary details

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

Place in performance ranking	719	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.20	no data
Architecture	Kepler (2012−2018)	Ampere (2020−2022)
GPU code name	N13E-GE	GA102
Market segment	Laptop	Desktop
Release date	22 March 2012 (12 years ago)	5 October 2020 (3 years ago)
Current price	$679	$900

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	10752
CUDA cores	384	no data
Core clock speed	Up to 900 MHz	no data
Boost clock speed	900 MHz	1755 MHz
Number of transistors	1,270 million	28,300 million
Manufacturing process technology	28 nm	8 nm
Power consumption (TDP)	45 Watt	300 Watt
Texture fill rate	Up to 27.2 billion/sec	589.7
Floating-point performance	652.8 gflops	no data

Form factor & compatibility

Information on GeForce GT 650M and RTX A40 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.

Laptop size	medium sized	no data
Bus support	PCI Express 2.0, PCI Express 3.0	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x16
Length	no data	267 mm
Width	no data	2-slot
Supplementary power connectors	no data	8-pin EPS

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	DDR3\GDDR5	GDDR6
Maximum RAM amount	2 GB	48 GB
Memory bus width	128bit	384 Bit
Memory clock speed	1800 - 4000 MHz	14.5 GB/s
Memory bandwidth	Up to 80.0 GB/s	695.8 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	3x DisplayPort
HDMI	+	no data
HDCP	+	no data
Maximum VGA resolution	Up to 2048x1536	no data

Supported technologies

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

3D Blu-Ray	+	no data
Optimus	+	no data

API compatibility

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

DirectX	12 API	12 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.5	4.6
OpenCL	1.1	2.0
Vulkan	1.1.126	1.2
CUDA	+	8.6

Pros & cons summary

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Recency	22 March 2012	5 October 2020
Maximum RAM amount	2 GB	48 GB
Chip lithography	28 nm	8 nm
Power consumption (TDP)	45 Watt	300 Watt

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