Radeon HD 6490M Mac Edition vs HD 6490M

Primary details

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

Place in the ranking1109not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.01no data
ArchitectureTeraScale 2 (2009−2015)TeraScale 2 (2009−2015)
GPU code nameSeymourSeymour
Market segmentLaptopLaptop
Release date4 January 2011 (13 years ago)2 May 2011 (13 years ago)
Launch price (MSRP)$1,193.03 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores160160
Core clock speed800 MHz750 MHz
Number of transistors370 million370 million
Manufacturing process technology40 nm40 nm
Texture fill rate6.4006.000
Floating-point processing power0.256 TFLOPS0.24 TFLOPS
ROPs44
TMUs88

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).

InterfacePCIe 2.0 x16PCIe 2.0 x16

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 typeGDDR5GDDR5
Maximum RAM amount512 MB256 MB
Memory bus width64 Bit64 Bit
Memory clock speed800 MHz794 MHz
Memory bandwidth25.6 GB/s25.41 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 ConnectorsNo outputsNo outputs

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 4 January 2011 2 May 2011
Maximum RAM amount 512 MB 256 MB

HD 6490M has a 100% higher maximum VRAM amount.

HD 6490M Mac Edition, on the other hand, has an age advantage of 3 months.

We couldn't decide between Radeon HD 6490M and Radeon HD 6490M Mac Edition. 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 6490M
Radeon HD 6490M
AMD Radeon HD 6490M Mac Edition
Radeon HD 6490M Mac Edition

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