Radeon HD 6970M Mac Edition 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	Blackcomb
Market segment	Desktop	Laptop
Release date	15 March 2013 (13 years ago)	25 August 2011 (14 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. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.

Pipelines / CUDA cores	800	960
Core clock speed	840 MHz	680 MHz
Number of transistors	1,700 million	1,700 million
Manufacturing process technology	40 nm	40 nm
Power consumption (TDP)	150 Watt	75 Watt
Texture fill rate	33.60	32.64
Floating-point processing power	1.344 TFLOPS	1.306 TFLOPS
ROPs	32	32
TMUs	40	48
L1 Cache	160 KB	192 KB
L2 Cache	512 KB	512 KB

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	MXM-B (3.0)
Length	198 mm	no data
Width	2-slot	no data
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	GDDR5
Maximum RAM amount	1 GB	2 GB
Memory bus width	256 Bit	256 Bit
Memory clock speed	1050 MHz	900 MHz
Memory bandwidth	134.4 GB/s	115.2 GB/s

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort	No outputs
HDMI	+	-

API and SDK support

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	25 August 2011
Maximum RAM amount	1 GB	2 GB
Power consumption (TDP)	150 Watt	75 Watt