Radeon Graphics 512SP Mobile vs 660M

VS

Primary details

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

Place in the ranking332not rated
Place by popularitynot in top-100not in top-100
Power efficiency27.94no data
ArchitectureRDNA 2.0 (2020−2024)GCN 5.1 (2018−2022)
GPU code nameRembrandt+Lucienne
Market segmentLaptopLaptop
Release date3 January 2023 (1 year ago)12 January 2021 (3 years 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 cores384512
Core clock speed1500 MHz300 MHz
Boost clock speed1900 MHz1900 MHz
Number of transistors13,100 million9,800 million
Manufacturing process technology6 nm7 nm
Power consumption (TDP)40 Watt25 Watt
Texture fill rate45.6060.80
Floating-point processing power1.459 TFLOPS1.946 TFLOPS
ROPs168
TMUs2432
Ray Tracing Cores6no data

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 4.0 x8IGP
Supplementary power connectorsNoneno data

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 typeSystem SharedSystem Shared
Maximum RAM amountSystem SharedSystem Shared
Memory bus widthSystem SharedSystem Shared
Memory clock speedSystem SharedSystem Shared
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 ConnectorsPortable Device DependentPortable Device Dependent

API compatibility

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

DirectX12 Ultimate (12_2)12 (12_1)
Shader Model6.76.7 (6.4)
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.31.3

Pros & cons summary


Recency 3 January 2023 12 January 2021
Chip lithography 6 nm 7 nm
Power consumption (TDP) 40 Watt 25 Watt

Radeon 660M has an age advantage of 1 year, and a 16.7% more advanced lithography process.

Graphics 512SP Mobile, on the other hand, has 60% lower power consumption.

We couldn't decide between Radeon 660M and Radeon Graphics 512SP Mobile. We've got no test results to judge.


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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon 660M
Radeon 660M
AMD Radeon Graphics 512SP Mobile
Radeon Graphics 512SP Mobile

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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


3.6 324 votes

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

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 50 votes

Rate Radeon Graphics 512SP Mobile on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.