GeForce GTX 660M Mac Edition vs Radeon RX 560

Place in the ranking	463	961
Place by popularity	64	not in top-100
Cost-effectiveness evaluation	1.48	no data
Power efficiency	8.75	2.17
Architecture	GCN 4.0 (2016−2020)	Kepler (2012−2018)
GPU code name	Polaris 21	GK107
Market segment	Desktop	Laptop
Release date	18 April 2017 (7 years ago)	1 April 2013 (11 years ago)
Launch price (MSRP)	$99	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	1024	384
Core clock speed	1175 MHz	950 MHz
Boost clock speed	1275 MHz	no data
Number of transistors	3,000 million	1,270 million
Manufacturing process technology	14 nm	28 nm
Power consumption (TDP)	75 Watt	50 Watt
Texture fill rate	81.60	30.40
Floating-point processing power	2.611 TFLOPS	0.7296 TFLOPS
ROPs	16	16
TMUs	64	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).

Interface	PCIe 3.0 x8	MXM-B (3.0)
Length	170 mm	no data
Width	2-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	1750 MHz	1250 MHz
Memory bandwidth	112.0 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 DisplayPort	No outputs
HDMI	+	-

API compatibility

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

DirectX	12 (12_0)	12 (11_0)
Shader Model	6.4	5.1
OpenGL	4.6	4.6
OpenCL	2.0	1.2
Vulkan	1.2.131	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.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

35
+600%

5−6

−600%

Cost per frame, $

1080p

2.83

no data

Pros & cons summary

Performance score	9.45	1.56
Recency	18 April 2017	1 April 2013
Maximum RAM amount	4 GB	512 MB
Chip lithography	14 nm	28 nm
Power consumption (TDP)	75 Watt	50 Watt

RX 560 has a 505.8% higher aggregate performance score, an age advantage of 4 years, a 700% higher maximum VRAM amount, and a 100% more advanced lithography process.

GTX 660M Mac Edition, on the other hand, has 50% lower power consumption.

The Radeon RX 560 is our recommended choice as it beats the GeForce GTX 660M Mac Edition in performance tests.

Be aware that Radeon RX 560 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.