Radeon 660M vs RX 570 X2

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Primary details

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

Place in the rankingnot rated332
Place by popularitynot in top-100not in top-100
Power efficiencyno data27.94
ArchitectureGCN 4.0 (2016−2020)RDNA 2.0 (2020−2024)
GPU code namePolaris 20Rembrandt+
Market segmentDesktopLaptop
Release dateno data3 January 2023 (1 year ago)

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 cores2048384
Core clock speed1120 MHz1500 MHz
Boost clock speed1206 MHz1900 MHz
Number of transistors5,700 million13,100 million
Manufacturing process technology14 nm6 nm
Power consumption (TDP)180 Watt40 Watt
Texture fill rate154.445.60
Floating-point processing power4.94 TFLOPS1.459 TFLOPS
ROPs3216
TMUs12824
Ray Tracing Coresno data6

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).

InterfacePCIe 3.0 x16PCIe 4.0 x8
Length241 mmno data
Width2-slotno data
Supplementary power connectors2x 8-pinNone

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 typeGDDR5System Shared
Maximum RAM amount8 GBSystem Shared
Memory bus width256 BitSystem Shared
Memory clock speed2100 MHzSystem Shared
Memory bandwidth268.8 GB/sno data
Shared memory-+

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 Connectors1x HDMI 2.0bPortable Device Dependent
HDMI+-

API compatibility

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

DirectX12 (12_0)12 Ultimate (12_2)
Shader Model6.76.7
OpenGL4.64.6
OpenCL2.12.0
Vulkan1.31.3

Pros & cons summary


Chip lithography 14 nm 6 nm
Power consumption (TDP) 180 Watt 40 Watt

Radeon 660M has a 133.3% more advanced lithography process, and 350% lower power consumption.

We couldn't decide between Radeon RX 570 X2 and Radeon 660M. We've got no test results to judge.

Be aware that Radeon RX 570 X2 is a desktop card while Radeon 660M is a notebook one.


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

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AMD Radeon RX 570 X2
Radeon RX 570 X2
AMD Radeon 660M
Radeon 660M

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3 22 votes

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3.6 324 votes

Rate Radeon 660M on a scale of 1 to 5:

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Questions & comments

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