Radeon HD 6490 vs HD 7720 OEM

Primary details

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

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	TeraScale 2 (2009−2015)	TeraScale 2 (2009−2015)
GPU code name	Barts	Redwood
Market segment	Desktop	Desktop
Release date	15 March 2013 (11 years ago)	4 July 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	800	320
Core clock speed	840 MHz	550 MHz
Number of transistors	1,700 million	627 million
Manufacturing process technology	40 nm	40 nm
Power consumption (TDP)	150 Watt	39 Watt
Texture fill rate	33.60	8.800
Floating-point processing power	1.344 TFLOPS	0.352 TFLOPS
ROPs	32	8
TMUs	40	16

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).

Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	198 mm	165 mm
Width	2-slot	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	GDDR5	DDR2
Maximum RAM amount	1 GB	1 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	1050 MHz	500 MHz
Memory bandwidth	134.4 GB/s	16 GB/s

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	2x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x HDMI, 1x VGA
HDMI	+	+

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	15 March 2013	4 July 2011
Power consumption (TDP)	150 Watt	39 Watt

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