Xeon 2660 V4 vs Xeon 2680 v4

butterflymuzzy · May 6, 2021, 13:29

Hello Flotus and Cfd Online forum members. I will buy a workstation computer for my ansys cfx analysis. I m gonna analyze free surface rigid body ship and propeller cavitation and propulsion analysis on cfd.

I m between 2 computers. 2nd computer %20 more expensive than 1st one.

1st computer is hp 840 ver1

2x 2660 v4 Xeon (28 core, 56 threads)
32 gb ddr 4 ram
8 gb pny nvidia Quattro display card
1 tb hdd
256 go ssd

2nd computer is hp 840 ver2

2x2680 v4 Xeon (28 core 56 threads)
64 gb ddr4 ram
4 gb k5000 Quattro display card
512 gb ssd

What is the main difference between 2660 v4 and 2680 v4?

Which computer do you prefer and why ?

Thanks so much for your helps

*♂️

flotus1 · May 6, 2021, 17:06

The CPUs are basically the same, with 400-500MHz difference in base and all-core turbo frequency.
https://en.wikichip.org/wiki/intel/xeon_e5/e5-2660_v4
https://en.wikichip.org/wiki/intel/xeon_e5/e5-2680_v4

So the 2680 v4 is a bit faster. With 14 cores on 4 memory channels, the frequency will not translate 1:1 to lower solver times. Up to you if that is worth the potentially higher price.
Whatever you pick, make sure the memory configuration is reasonable. 32GB might be a bit on the low side, depending on how large your simulations get. And a workstation with 2 of these CPUs needs 8 DIMMs total. If the seller doesn't specify that, ask before you buy.

May 6, 2021, 13:29	Xeon 2660 V4 vs Xeon 2680 v4	#1
butterflymuzzy Member Join Date: Mar 2016 Posts: 32 Rep Power: 10	Hello Flotus and Cfd Online forum members. I will buy a workstation computer for my ansys cfx analysis. I m gonna analyze free surface rigid body ship and propeller cavitation and propulsion analysis on cfd. I m between 2 computers. 2nd computer %20 more expensive than 1st one. 1st computer is hp 840 ver1 2x 2660 v4 Xeon (28 core, 56 threads) 32 gb ddr 4 ram 8 gb pny nvidia Quattro display card 1 tb hdd 256 go ssd 2nd computer is hp 840 ver2 2x2680 v4 Xeon (28 core 56 threads) 64 gb ddr4 ram 4 gb k5000 Quattro display card 512 gb ssd What is the main difference between 2660 v4 and 2680 v4? Which computer do you prefer and why ? Thanks so much for your helps *♂️

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May 6, 2021, 17:06		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,399 Rep Power: 46	The CPUs are basically the same, with 400-500MHz difference in base and all-core turbo frequency. https://en.wikichip.org/wiki/intel/xeon_e5/e5-2660_v4 https://en.wikichip.org/wiki/intel/xeon_e5/e5-2680_v4 So the 2680 v4 is a bit faster. With 14 cores on 4 memory channels, the frequency will not translate 1:1 to lower solver times. Up to you if that is worth the potentially higher price. Whatever you pick, make sure the memory configuration is reasonable. 32GB might be a bit on the low side, depending on how large your simulations get. And a workstation with 2 of these CPUs needs 8 DIMMs total. If the seller doesn't specify that, ask before you buy.