A10 PCIe vs Radeon HD 6645G2

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureTerascale 2 (2009−2015)Ampere (2020−2024)
GPU code nameno dataGA102
Market segmentLaptopWorkstation
Release date14 June 2011 (13 years ago)12 April 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 cores5609216
Core clock speedno data885 MHz
Boost clock speedno data1695 MHz
Number of transistorsno data28,300 million
Manufacturing process technology40 nm8 nm
Power consumption (TDP)no data150 Watt
Texture fill rateno data488.2
Floating-point processing powerno data31.24 TFLOPS
ROPsno data96
TMUsno data288
Tensor Coresno data288
Ray Tracing Coresno data72

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 sizedno data
Interfaceno dataPCIe 4.0 x16
Lengthno data267 mm
Widthno data1-slot
Supplementary power connectorsno data8-pin EPS

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 data24 GB
Memory bus widthno data384 Bit
Memory clock speedno data1563 MHz
Memory bandwidthno data600.2 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 dataNo outputs

API compatibility

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

DirectX1112 Ultimate (12_2)
Shader Modelno data6.6
OpenGLno data4.6
OpenCLno data3.0
Vulkan-1.2
CUDA-8.6

Pros & cons summary


Recency 14 June 2011 12 April 2021
Chip lithography 40 nm 8 nm

A10 PCIe has an age advantage of 9 years, and a 400% more advanced lithography process.

We couldn't decide between Radeon HD 6645G2 and A10 PCIe. We've got no test results to judge.

Be aware that Radeon HD 6645G2 is a notebook card while A10 PCIe is a workstation 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 HD 6645G2
Radeon HD 6645G2
NVIDIA A10 PCIe
A10 PCIe

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Community ratings

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