Radeon HD 6490M Mac Edition vs HD 7400G

Primary details

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

Place in the ranking	1169	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	2.83	no data
Architecture	TeraScale 3 (2010−2013)	TeraScale 2 (2009−2015)
GPU code name	Scrapper	Seymour
Market segment	Laptop	Laptop
Release date	2 October 2012 (12 years ago)	2 May 2011 (13 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 cores	192	160
Core clock speed	327 MHz	750 MHz
Boost clock speed	424 MHz	no data
Number of transistors	1,303 million	370 million
Manufacturing process technology	32 nm	40 nm
Power consumption (TDP)	17 Watt	no data
Texture fill rate	5.088	6.000
Floating-point processing power	0.1628 TFLOPS	0.24 TFLOPS
ROPs	4	4
TMUs	12	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
Interface	IGP	PCIe 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 type	System Shared	GDDR5
Maximum RAM amount	System Shared	256 MB
Memory bus width	System Shared	64 Bit
Memory clock speed	System Shared	794 MHz
Memory bandwidth	no data	25.41 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 Connectors

No outputs

No outputs

API compatibility

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

DirectX	11.2 (11_0)	11.2 (11_0)
Shader Model	5.0	5.0
OpenGL	4.4	4.4
OpenCL	1.2	1.2
Vulkan	N/A	N/A

Pros & cons summary

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Recency	2 October 2012	2 May 2011
Chip lithography	32 nm	40 nm

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