Radeon HD 6770M Mac Edition vs GeForce GTX 280

Primary details

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

Place in the ranking	732	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.11	no data
Power efficiency	1.00	no data
Architecture	Tesla 2.0 (2007−2013)	TeraScale 2 (2009−2015)
GPU code name	GT200	Whistler
Market segment	Desktop	Laptop
Release date	16 June 2008 (16 years ago)	28 January 2011 (13 years ago)
Launch price (MSRP)	$649	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	240	480
Core clock speed	602 MHz	725 MHz
Number of transistors	1,400 million	716 million
Manufacturing process technology	65 nm	40 nm
Power consumption (TDP)	236 Watt	35 Watt
Maximum GPU temperature	105 °C	no data
Texture fill rate	48.16	17.40
Floating-point processing power	0.6221 TFLOPS	0.696 TFLOPS
ROPs	32	8
TMUs	80	24

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-A (3.0)
Length	267 mm	no data
Height	4.376" (111 mm) (11.1 cm)	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin + 1x 8-pin	no data
SLI options	+	-

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	GDDR3	GDDR5
Maximum RAM amount	1 GB	512 MB
Memory bus width	512 Bit	128 Bit
Memory clock speed	1107 MHz	900 MHz
Memory bandwidth	141.7 GB/s	57.6 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	HDTVDual Link DVI	No outputs
Multi monitor support	+	no data
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	S/PDIF	no data

API compatibility

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

DirectX	11.1 (10_0)	11.2 (11_0)
Shader Model	4.0	5.0
OpenGL	2.1	4.4
OpenCL	1.1	1.2
Vulkan	N/A	N/A
CUDA	+	-

Pros & cons summary

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Recency	16 June 2008	28 January 2011
Maximum RAM amount	1 GB	512 MB
Chip lithography	65 nm	40 nm
Power consumption (TDP)	236 Watt	35 Watt

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