XGI Volari V3 XT 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)XG4 (2003−2005)
GPU code nameno dataXG42
Market segmentLaptopDesktop
Release date14 June 2011 (13 years ago)15 September 2003 (21 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 cores560no data
Core clock speedno data250 MHz
Number of transistorsno data25 million
Manufacturing process technology40 nm130 nm
Texture fill rateno data1.000
ROPsno data2
TMUsno data4

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 dataAGP 8x
Widthno data1-slot

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 dataDDR
Maximum RAM amountno data128 MB
Memory bus widthno data128 Bit
Memory clock speedno data207 MHz
Memory bandwidthno data6.624 GB/s
Shared memory-no data

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 data1x DVI, 1x VGA, 1x S-Video

API compatibility

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

DirectX118.1
OpenGLno data1.3
OpenCLno dataN/A
Vulkan-N/A

Pros & cons summary


Recency 14 June 2011 15 September 2003
Chip lithography 40 nm 130 nm

HD 6645G2 has an age advantage of 7 years, and a 225% more advanced lithography process.

We couldn't decide between Radeon HD 6645G2 and XGI Volari V3 XT. We've got no test results to judge.

Be aware that Radeon HD 6645G2 is a notebook card while XGI Volari V3 XT is a desktop 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
XGI Volari V3 XT
Volari V3 XT

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