Radeon HD 6770M Mac Edition vs GeForce GTX 295

Primary details

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

Place in the ranking	748	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.12	no data
Power efficiency	0.75	no data
Architecture	Tesla 2.0 (2007−2013)	TeraScale 2 (2009−2015)
GPU code name	GT200B	Whistler
Market segment	Desktop	Laptop
Release date	8 January 2009 (15 years ago)	28 January 2011 (13 years ago)
Launch price (MSRP)	$500	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	480	480
CUDA cores per GPU	240	no data
Core clock speed	576 MHz	725 MHz
Number of transistors	1,400 million	716 million
Manufacturing process technology	55 nm	40 nm
Power consumption (TDP)	289 Watt	35 Watt
Maximum GPU temperature	105 °C	no data
Texture fill rate	46.08	17.40
Floating-point processing power	0.5962 TFLOPS	0.696 TFLOPS
ROPs	28	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	1792 MB	512 MB
Standard memory config per GPU	896 MB	no data
Memory bus width	896 Bit	128 Bit
Memory clock speed	999 MHz	900 MHz
Memory bandwidth	223.8 GB/s	57.6 GB/s
Memory interface width per GPU	448 Bit	no data

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	Two Dual Link DVIHDMI	No outputs
Multi monitor support	+	no data
HDMI	+	-
Maximum VGA resolution	2048x1536	no data
Audio input for HDMI	S/PDIF	no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

High Dynamic-Range Lighting (HDRR)

128bit

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	8 January 2009	28 January 2011
Maximum RAM amount	1792 MB	512 MB
Chip lithography	55 nm	40 nm
Power consumption (TDP)	289 Watt	35 Watt

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