Radeon HD 8490 OEM vs HD 7400G

Primary details

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

Place in the ranking1166not rated
Place by popularitynot in top-100not in top-100
Power efficiency2.82no data
ArchitectureTeraScale 3 (2010−2013)TeraScale 2 (2009−2015)
GPU code nameScrapperCaicos
Market segmentDesktopDesktop
Release date2 October 2012 (12 years ago)23 July 2013 (11 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 cores192160
Core clock speed327 MHz875 MHz
Boost clock speed424 MHzno data
Number of transistors1,303 million370 million
Manufacturing process technology32 nm40 nm
Power consumption (TDP)17 Watt35 Watt
Texture fill rate5.0887.000
Floating-point processing power0.1628 TFLOPS0.28 TFLOPS
ROPs44
TMUs128

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).

InterfaceIGPPCIe 2.0 x16
Lengthno data168 mm
WidthIGP1-slot
Supplementary power connectorsno dataNone

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 typeSystem SharedDDR3
Maximum RAM amountSystem Shared1 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared900 MHz
Memory bandwidthno data14.4 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 ConnectorsNo outputs1x DVI, 1x DisplayPort

API compatibility

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

DirectX11.2 (11_0)11.2 (11_0)
Shader Model5.05.0
OpenGL4.44.4
OpenCL1.21.2
VulkanN/AN/A

Pros & cons summary


Recency 2 October 2012 23 July 2013
Chip lithography 32 nm 40 nm
Power consumption (TDP) 17 Watt 35 Watt

HD 7400G has a 25% more advanced lithography process, and 105.9% lower power consumption.

HD 8490 OEM, on the other hand, has an age advantage of 9 months.

We couldn't decide between Radeon HD 7400G and Radeon HD 8490 OEM. 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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AMD Radeon HD 7400G
Radeon HD 7400G
AMD Radeon HD 8490 OEM
Radeon HD 8490 OEM

Comparisons with similar GPUs

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Community ratings

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2.8 89 votes

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3.9 356 votes

Rate Radeon HD 8490 OEM on a scale of 1 to 5:

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Questions & comments

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