GeForce GTX 660M Mac Edition vs Radeon HD 6570

Place in the ranking	998	966
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.07	no data
Power efficiency	1.66	2.17
Architecture	TeraScale 2 (2009−2015)	Kepler (2012−2018)
GPU code name	Turks	GK107
Market segment	Desktop	Laptop
Design	reference	no data
Release date	19 April 2011 (13 years ago)	1 April 2013 (11 years ago)
Launch price (MSRP)	$79	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	384
Core clock speed	no data	950 MHz
Boost clock speed	650 MHz	no data
Number of transistors	716 million	1,270 million
Manufacturing process technology	40 nm	28 nm
Power consumption (TDP)	40 Watt	50 Watt
Texture fill rate	15.60	30.40
Floating-point processing power	0.624 TFLOPS	0.7296 TFLOPS
ROPs	8	16
TMUs	24	32

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).

Bus support	PCIe 2.1 x16	no data
Interface	PCIe 2.0 x16	MXM-B (3.0)
Length	168 mm	no data
Width	1-slot	no data
Supplementary power connectors	None	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	4 GB	512 MB
Memory bus width	128 Bit	128 Bit
Memory clock speed	900 MHz	1250 MHz
Memory bandwidth	28.8 GB/s	80 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	1x DVI, 1x HDMI, 1x VGA	No outputs
Eyefinity	+	-
HDMI	+	-
DisplayPort support	+	-

Supported technologies

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

CrossFire	+	-
UVD	+	-

API compatibility

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

DirectX	DirectX® 11	12 (11_0)
Shader Model	5.0	5.1
OpenGL	4.4	4.6
OpenCL	1.2	1.2
Vulkan	-	1.1.126
CUDA	-	3.0

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	1.43	1.56
Recency	19 April 2011	1 April 2013
Maximum RAM amount	4 GB	512 MB
Chip lithography	40 nm	28 nm
Power consumption (TDP)	40 Watt	50 Watt

HD 6570 has a 700% higher maximum VRAM amount, and 25% lower power consumption.

GTX 660M Mac Edition, on the other hand, has a 9.1% higher aggregate performance score, an age advantage of 1 year, and a 42.9% more advanced lithography process.

Given the minimal performance differences, no clear winner can be declared between Radeon HD 6570 and GeForce GTX 660M Mac Edition.

Be aware that Radeon HD 6570 is a desktop card while GeForce GTX 660M Mac Edition is a notebook one.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.