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Explorer
Explorer
10,333 Views
Registered: ‎07-18-2011

Virtex vs. Kintex Fabric Performance

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Hello.

 

Does the FPGA fabric of a Virtex UltraScale device offer any performance advantages over a Kintex UltraScale of comperable size? Or are the differences in the two families just in the peripherals and interfaces (e.g. faster SerDes, faster memory interfaces in the Virtex)?

 

Thank you,

David

 

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Scholar austin
Scholar
18,510 Views
Registered: ‎02-27-2008

Re: Virtex vs. Kintex Fabric Performance

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d,

 

Virtex and Kintex Ultrascale+ (16nm) have identical architectures, with the differences being in how many, and of what blocks.

 

The same is true of Ultrascale (20nm), as well as all 7 series devices and families.

Austin Lesea
Principal Engineer
Xilinx San Jose

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Scholar austin
Scholar
18,511 Views
Registered: ‎02-27-2008

Re: Virtex vs. Kintex Fabric Performance

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d,

 

Virtex and Kintex Ultrascale+ (16nm) have identical architectures, with the differences being in how many, and of what blocks.

 

The same is true of Ultrascale (20nm), as well as all 7 series devices and families.

Austin Lesea
Principal Engineer
Xilinx San Jose

View solution in original post

Historian
Historian
10,321 Views
Registered: ‎01-23-2009

Re: Virtex vs. Kintex Fabric Performance

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Minor clarification...

 

The Artix-7 devices have a slower fabric than the Kintex-7 and Virtex-7 (which are the same).

 

The rest is as @austin said; the fabric performance of the Kintex UltraScale and Virtex UltraScale are the same as eachother, and the Kintex UltraScale+ and Virtex UltraScale+ are the same as eachother (but obviously faster than the UltraScale).

 

There are some differences in certain cell performances (notably the GTX/GTH/GTY... and PCIe) depending on family member and package, but the fabric (LUTs, FFs, BRAMs, DSPs) don't change within the related family members.

 

Avrum

Scholar austin
Scholar
10,314 Views
Registered: ‎02-27-2008

Re: Virtex vs. Kintex Fabric Performance

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a,

 

Correct.  To the extent possible, Artix is optimized for low power, Kintex for best overall (performance, power, cost), and Virtex for best performance.  They all use the same recipe (TSMC HPL process) but there are minor tweaks to the design and process that allow us to differentiate them.

Austin Lesea
Principal Engineer
Xilinx San Jose
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Scholar ronnywebers
Scholar
1,252 Views
Registered: ‎10-10-2014

Re: Virtex vs. Kintex Fabric Performance

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thanks for the clarifications above @avrumw 

so just to make sure : is my conclusion correct for Zynq UltraScale+ MPSoC devices, that there is no 'subdivision' as in Zynq 7000 devices (Artix/Kintex based)? 

looking at the language templates in Vivado : for use of these templates in Zynq US+ MPSoC devices, that does probably mean I can choose from both the Kintex UltraScale+ and Virtex UltraScale+? (these look to be completely identical anyway)

templates.jpg

 

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