Mobility Radeon HD 540v vs GeForce GT 640M

Primary details

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

Place in performance ranking	805	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.23	no data
Architecture	Kepler (2012−2018)	Terascale 1 (2008−2010)
GPU code name	N13P-GS	M92
Market segment	Laptop	Laptop
Release date	22 March 2012 (12 years ago)	5 May 2010 (14 years ago)
Current price	$310	$56

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	80
CUDA cores	384	no data
Core clock speed	Up to 625 MHz	550 MHz
Boost clock speed	645 MHz	no data
Number of transistors	1,270 million	242 million
Manufacturing process technology	28 nm	55 nm
Power consumption (TDP)	32 Watt	15 Watt
Texture fill rate	Up to 20.0 billion/sec	4.400
Floating-point performance	480.0 gflops	88 gflops

Form factor & compatibility

Information on GeForce GT 640M and Mobility Radeon HD 540v compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. 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	MXM-A (3.0)
Supplementary power connectors	no data	None

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	GDDR3, DDR3, DDR2
Maximum RAM amount	2 GB	512 MB
Memory bus width	128bit	64 Bit
Memory clock speed	1800 - 4000 MHz	800 MHz
Memory bandwidth	Up to 64.0 GB/s	12.8 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 Connectors	No outputs	No outputs
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	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.5	3.3
OpenCL	1.1	1.1
Vulkan	1.1.126	N/A
CUDA	+	no data

Synthetic benchmark performance

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

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Pros & cons summary

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Recency	22 March 2012	5 May 2010
Maximum RAM amount	2 GB	512 MB
Chip lithography	28 nm	55 nm
Power consumption (TDP)	32 Watt	15 Watt

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