Nvidia RTX 500 Ada Generation Mobile vs Radeon HD 6645G2

VS

Primary details

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

Place in the rankingnot rated200
Place by popularitynot in top-100not in top-100
Power efficiencyno data54.14
ArchitectureTerascale 2 (2009−2015)Ada Lovelace (2022−2024)
GPU code nameno dataAD107
Market segmentLaptopMobile workstation
Release date14 June 2011 (13 years ago)26 February 2024 (less than a 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 cores5602048
Core clock speedno data1485 MHz
Boost clock speedno data2025 MHz
Number of transistorsno data18,900 million
Manufacturing process technology40 nm5 nm
Power consumption (TDP)no data35 Watt
Texture fill rateno data129.6
Floating-point processing powerno data8.294 TFLOPS
ROPsno data32
TMUsno data64
Tensor Coresno data64
Ray Tracing Coresno data16

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).

Laptop sizemedium sizedmedium sized
Interfaceno dataPCIe 4.0 x8

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 typeno dataGDDR6
Maximum RAM amountno data4 GB
Memory bus widthno data64 Bit
Memory clock speedno data2000 MHz
Memory bandwidthno data128.0 GB/s
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 Connectorsno dataPortable Device Dependent

API compatibility

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

DirectX1112 Ultimate (12_2)
Shader Modelno data6.8
OpenGLno data4.6
OpenCLno data3.0
Vulkan-1.3
CUDA-8.9

Pros & cons summary


Recency 14 June 2011 26 February 2024
Chip lithography 40 nm 5 nm

Nvidia RTX 500 Ada Generation Mobile has an age advantage of 12 years, and a 700% more advanced lithography process.

We couldn't decide between Radeon HD 6645G2 and RTX 500 Ada Generation Mobile. We've got no test results to judge.

Be aware that Radeon HD 6645G2 is a notebook graphics card while RTX 500 Ada Generation Mobile is a mobile workstation one.


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 HD 6645G2
Radeon HD 6645G2
Nvidia RTX 500 Ada Generation Mobile
RTX 500 Ada Generation 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.


No user ratings yet.

Rate Radeon HD 6645G2 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.1 15 votes

Rate RTX 500 Ada Generation 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.