New pc dilemma: i7 7700 or dual xeon 2650 v1

Mik wrote on 1/29/2017, 5:45 PM

Hi need to get a pc on a tight budget for about the same price in Europe I could get a new i7 7700 with 16 ram and ssd

Or a used but guaranteed Dell 5600 with dual xeon 2650 with 64 gb ram and ssd

Either one could have any gpu.

BTW what is most economical gpu I could get away with?

Doing only HD now but want to start 4k later...

Thanks a lot!

Mik

Comments

astar wrote on 1/30/2017, 9:08 AM

In my book it depends on how much memory bandwidth the 64GB on the Xeon has, and you need to make sure the Xeon board is not PCIe 2.0.

The 7700 board could have better memory bandwidth, and will likely support PCIe3.0 which has much more bandwidth than PCIe2.0.

The Xeon according to SETI at home will have more compute power, but with Vegas you really want to max the bandwidth at each bottle neck and have good compute power. I don't like the fact that the Xeon appears to only have 8X PCIe 2.0 slots for the GPU. The 7700 will be a very respectable HD vegas machine.

RX480 is probably the most economical GPU for Vegas. You options being the 7970-Ghz, R9-290x or 390x, RX480, or the Fury-X.

 

gerdagerd wrote on 1/30/2017, 9:28 AM

think about dual used xeon 2670s maybe? they are quite powerful. Get an RX480 for the budget gpu!

Mik wrote on 1/30/2017, 9:39 AM

Thanks for the imput,

Xeon is ddr3

I7 is ddr4

Does it matter?

OldSmoke wrote on 1/30/2017, 11:54 AM

Xeons make no sense in my opinion. Vegas benefits more form higher clock speeds than cores. 16GB or 64GB Ram also make no difference to Vegas. PCIe 3.0 is important especially with a GPU that supports it. I would rather build a system based on a socket 2011 processor. Even the 6800K will give you much better performance then any currently available mainstream CPU. Since you are mostly doing HD, a R9 290X will do just fine and you may get a good deal on eBay.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

astar wrote on 1/30/2017, 12:29 PM

DDR4 is the road ahead. DDR3 is in the rearview mirror at this point.

DDR4 is doing the same memory bandwidth on the Z270 chipset that the max memory config on the Xeon will do. That shows you how much improvement there is with the 7700. Both will do about 50GB/s, but you would have to make sure the Xeon actually has the max memory speeds installed. The same goes for the 7700, you have to make sure the max memory speed is installed. Often time manufacturers like Dell will put a "good deal" for them speed of memory inside. Winsat Mem on each machine will tell you the memory bandwidth.

The machines are very close in terms of the specs, but the 7700 has the latest architecture and supports the latest accessories.

The Xeon has 4x DMI bridge (2x 2GB/s), while the 7700 has an updated PCIe3.0 DMI bridge (4GB/s.)

In terms of computation:

  • The 7700K does about 39 GFLOPs
  • Single 2650 @2.0GHz does about 50 GFLOPs.
  • The RX480 will add 5,500 GFLOPS to either
  • 7700K Passmark - 12205
  • dual 2650 passmark - 15200

It seems to me that the Xeon is like having a 10 year old sports car, whereas the 2017 Toyota Camry has the same performance.

The Rx480 and the R9-290x have about the same compute performance. I would lean towards the rx480 due to the latest feature support, and the fact that you get a new card for the rough same price as a used 290x.

Mik wrote on 1/30/2017, 1:37 PM

Thanks for the complete explanation!

Mik wrote on 1/31/2017, 4:30 PM

Guys thanks for your advice!

Based on it I went with a i7 6800k...

Is there like a standard benchmark to run on Vegas to compare results and tweak the pc?

Win 7 pro 64 bit o win 10?

Thanks again!

ushere wrote on 1/31/2017, 5:22 PM

win 10 for sure. whether you like it or not it's the way forward. no one is writing anything specifically for win 7 anymore.

john_dennis wrote on 1/31/2017, 6:13 PM

While I agree with ushere's sentiment, technology is a one-way trip, I just built an i7-6850K system with Windows 7 Pro. I don't perceive of the choice as an either/or question since I have OTB Windows 10 images for all the systems I own except the newest one. I just don't run Windows 10 on any of them, yet.

Most people probably don't waste as much time building Windows systems as I do, though. My oldest system ran XP and now Windows 7 Pro. Operating systems can be changed over time. You could have different systems for different functions on the same hardware. In the next few weeks, I'm going to load a standalone Windows 7 Pro system on my office machine, install Turbo Tax, do my taxes, save the image and put the machine back the way I found it.

It gets worse. I still have a machine that is all SCSI running Windows 98SE. It has a very expensive sound card that was ISA. I promised to give it to a friend to use for recording but haven't done that or used the system for years. Some people still have their '65 Mustangs in their garage.

ushere wrote on 1/31/2017, 8:42 PM

hi john, do appreciate where you're coming from, it took a lot to make me move on from win 7 i can assure you - i started off installing it on my office pc and laptop, then on my wife's desktop and laptop (she wanted it after playing around on my office pc), and finally on my nle box. like you i simply removed my c: drive and replaced it with a new one, so if things did go belly up i could revert back.

in about 8/9 months of using 10 for my nle's (vegas / resolve / cs6), ps and dxo i haven't had recourse to swapping hd's over.

do i prefer it? well, i was happy enough with my sinclair zx80, then atari, then amiga, then mac, then pc... and so it goes. frankly once i'm into any program, albeit editing, ps, excel, dxo, word, i don't really care about what os i'm using UNESS i have a problem, and that's happened under EVERY os i've ever used ;-(