Radeon HD 8490 OEM vs GeForce GT 640M LE

Primary details

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

Place in the ranking	914	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.04	no data
Power efficiency	4.08	no data
Architecture	Fermi (2010−2014)	TeraScale 2 (2009−2015)
GPU code name	GF108	Caicos
Market segment	Laptop	Desktop
Release date	4 May 2012 (12 years ago)	23 July 2013 (11 years ago)
Launch price (MSRP)	$849.99	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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 cores	Up to 384	160
Core clock speed	Up to 500 MHz	875 MHz
Number of transistors	585 million	370 million
Manufacturing process technology	40 nm	40 nm
Power consumption (TDP)	20 Watt	35 Watt
Texture fill rate	12.05	7.000
Floating-point processing power	0.289 TFLOPS	0.28 TFLOPS
ROPs	4	4
TMUs	16	8

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 size	medium sized	no data
Bus support	PCI Express 2.0, PCI Express 3.0	no data
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	no data	168 mm
Width	no data	1-slot
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\DDR5	DDR3
Maximum RAM amount	2 GB	1 GB
Memory bus width	128bit	64 Bit
Memory clock speed	785 MHz	900 MHz
Memory bandwidth	Up to 28.8 GB/s	14.4 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	1x DVI, 1x DisplayPort
HDMI	+	-
HDCP	+	-
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	+	-
Optimus	+	-

API compatibility

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

DirectX	12 API	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.5	4.4
OpenCL	1.1	1.2
Vulkan	N/A	N/A
CUDA	+	-

Pros & cons summary

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Recency	4 May 2012	23 July 2013
Maximum RAM amount	2 GB	1 GB
Power consumption (TDP)	20 Watt	35 Watt

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