Ryzen CPUs VS FX CPUs

Theinventor10

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Apr 8, 2017
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I was wondering what the differences are in general between Ryzen CPUs and the FX CPUs and especially the differences between the FX9590 and the Ryzen 5 1500X processors.

I've done some research between the processors:
http://cpu.userbenchmark.com/Compare/AMD-FX-9590-vs-AMD-Ryzen-5-1500X/1812vs3921

But I was wondering why the Ryzen 5 CPUs have a better rating but have a substantially lower clock rate, when I usually used to buy processors I would buy them based on clock rate and somewhat on number of cores, so it seems kind of strange some of the Ryzen CPUs would be substantially better. Are there good reasons why or are they just considered better because there newer and take less wattage?
 

maikutech

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@g-unit We are not choosing dualcore chips for gaming, especially if the op has enough funds to buy a really good quadcore chip.

Inventor the ryzen 1500x will be your best bet, pricewise and valuewise g-unit is right.
Go ahead and make your purchase and then show them off when it arrives at your doorstep.
 

SinxarKnights

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That is a common problem with people buying CPUs, this is why people buy the FX 6300 or the FX 9590 thinking they are good because of high clocks or more cores. They are not directly comparable in this way.

What determines the 'speed' of a processor is how many instructions it can process per clock cycle. This is known as IPC or Instructions Per Cycle. This is the reason even low end Intel chips such as the i3 series are significantly faster than the FX line of CPUs. It can do so much more per clock to the point even 6 cores is worse than two (two + hyperthreading) because of the immense IPC difference.

I know someone will call me on it so it should be noted that more cores can help with some workloads that are highly threaded. In some cases like this, it can be beneficial to go with more cores over a higher IPC. Keep in mind though that there isn't much out there for the mainstream user that takes advantage of more than 4 cores. Gaming is an area that could use some optimization in this regard. Very few games use all the cores you can throw at it so in may cases that 6 or 8 core chip just sits there doing nothing most of the time.
 
Clock speed alone is meaningless. In simplest terms Ryzen is significantly more efficient and can do more calculations per clock cycle, it has a higher IPC (Instructions Per Cycle).

Next time your looking at CPU's you need to read benchmarks and reviews.
 

g-unit1111

Titan
Moderator
Cinebench benchmarks, as most synthetic benchmarks go, are pretty meaningless. Where Ryzen excels over FX is a couple of things. The first is that the CPUs are way more energy efficient (95W vs 220W) and there's a better utilization of the cores. FX is a now 6 year old platform. And in PC years, that's ancient. Ryzen is a brand new platform that's been built from the ground up to capitalize off of FX's failures. And while they didn't reverse all of them (the memory controller is a huge issue for some motherboards), they are definitely going in the right direction. An R5-1600X is the first CPU in years that they've developed that's capable of going toe to toe with the Intel i5-7600K. So it's definitely nice to have some competition.
 
I used Cinebench just as an example but most benchmarks are addressing comparison between Intel and AMD processors.
In my opinion, benchmarks are useful only to compare results of changes (OC or optimization) for particular system and performance in normal use is more useful.
 

mrobscura

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Mar 9, 2017
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unless you are building a super budget build, and have no plan on ever using anything more than a lower end gpu, or just want an everyday desktop for surfing the web and whatnot, dont buy an fx chip, you will be severely disappointed. clock speed as mentioned mean nothing when taken on their own, you have to take architecture into account.

if you go with amd go ryzen.
 

g-unit1111

Titan
Moderator


There's better benchmarks out there that you can use to really test the limits of a CPU, and 3DMark is definitely one of those benchmarks. But testing how fast a CPU can process video is pretty redundant. Synthetic benchmarks like Passmark and Cinebench don't really test the real world usage and limits of what a CPU can do. They really only test the bare minimum of what a CPU can do.
 

maikutech

Distinguished


Take off the rx480, thats part of what is making your build costs so high.
Also I know you want a glass panel look on your case but this might do you better with more air vents.
https://www.newegg.com/Product/Product.aspx?Item=N82E16811147237
Also you could do much better with these fans one is cheaper the other abit pricier but worth it.
https://www.newegg.com/Product/Product.aspx?Item=N82E16835181073&cm_re=corsair_case_fans-_-35-181-073-_-Product

or

https://www.newegg.com/Product/Product.aspx?Item=N82E16835608047
 

Ecky

Illustrious
Moderator
Decent all around build, but for Arma 3 you'd be far better off with an Intel CPU. Compared with an i5, the Ryzen CPU has more but slower CPU cores (or threads, more accurately). Arma will leave the extra threads mostly unused, and relies on strong per-core performance. An i5 7500 + B250 board will come out about $30 cheaper, too.
 

g-unit1111

Titan
Moderator


What? You've got to have a GPU. The R5s and R7s do not have onboard video. How are you going to output to a monitor if you have no GPU?
 

logainofhades

Titan
Moderator
Not buying everything from one place would probably help with the price.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Ryzen 5 1500X 3.5GHz Quad-Core Processor ($189.00 @ Amazon)
Motherboard: Asus PRIME B350-PLUS ATX AM4 Motherboard ($99.99 @ Amazon)
Memory: Corsair Vengeance LPX 8GB (2 x 4GB) DDR4-3000 Memory ($63.99 @ Amazon)
Storage: Crucial MX300 275GB M.2-2280 Solid State Drive ($90.99 @ Amazon)
Video Card: Asus Radeon RX 480 8GB ROG STRIX Video Card ($239.99 @ Amazon)
Case: Zalman Z1 Neo ATX Mid Tower Case ($46.99 @ Amazon)
Power Supply: SeaSonic S12II 620W 80+ Bronze Certified ATX Power Supply ($49.90 @ Amazon)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($18.69 @ Amazon)
Total: $799.54
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-04-14 16:19 EDT-0400


vs shopping around

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Ryzen 5 1500X 3.5GHz Quad-Core Processor ($188.98 @ NCIX US)
Motherboard: ASRock AB350M Pro4 Micro ATX AM4 Motherboard ($82.98 @ Newegg)
Memory: G.Skill Ripjaws 4 Series 8GB (2 x 4GB) DDR4-2800 Memory ($59.99 @ Newegg)
Storage: Crucial MX300 275GB M.2-2280 Solid State Drive ($89.88 @ OutletPC)
Video Card: Asus Radeon RX 480 8GB Dual OC Video Card ($234.95 @ Jet)
Case: Zalman Z1 Neo ATX Mid Tower Case ($45.99 @ SuperBiiz)
Power Supply: SeaSonic S12II 620W 80+ Bronze Certified ATX Power Supply ($49.90 @ Amazon)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($17.88 @ OutletPC)
Total: $770.55
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-04-14 16:26 EDT-0400
 

mrobscura

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Mar 9, 2017
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honestly i dont think the 4 core ryzens are worth it, even with 8 threads they fail to compete with 4 thread i5s. the 6 core ryzens just about on par with i5s(in gaming). so if you go ryzen i would try to swing 30 bucks more and go with the 1600, its by for the best bang for your buck offered by amd.
 

Theinventor10

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Apr 8, 2017
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Thanks I've been looking at getting a cheaper motherboard and less case fans so I can afford a ryzen 5 1600x. Also of course I understand I need a gpu, it may have not been clear because I added my gpu as a custom part in my pc part list. I hope maikutech meant getting a cheaper gpu which seemed pretty obvious to me instead of (not getting a gpu). The reason why I wanted to get a expensive graphics card was I wanted it to last.

What do you think of this build?
https://pcpartpicker.com/list/kcXBJV
 

SinxarKnights

Distinguished
I personally recommend 16GB RAM and a 500GB SSD in a modern PC. For RAM, you want 8GB x 2 or 4GB x 4 to make sure it works in dual channel mode. For the SSD you can go with a MX300 525GB. You will need a CPU cooler as well. The Cryorig H7 is an excellent choice for a budget cooler.

What is your budget?
 

Theinventor10

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Apr 8, 2017
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Thanks for your opinions but my budget is about 800, I was looking at getting less and faster ram instead of more but slow RAM, also I can't afford a 525GB SSD if I get a ryzen processor. I believe the ryzen 5 6000x comes with some kind of basic cpu cooler, although I am assuming it isn't very good but I would probably have to go with a lesser cpu if I did get a better cooler.

I was hoping to spend less on RAM, SSD, motherboard, and other components to get a excellent gpu and a good cpu.

RAM: Corsair Vengeance LPX 8GB (2 x 4GB) DDR4-3000 Memory
https://www.newegg.com/Product/Product.aspx?Item=N82E16820233829&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker,%20LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
SSD: Sandisk SSD PLUS 240GB 2.5" Solid State Drive
https://www.amazon.com/dp/B01F9G43WU/?tag=pcpapi-20
Power Supply: SeaSonic S12II 620W 80+ Bronze Certified ATX Power Supply
https://www.amazon.com/dp/B003BIEOCI/?tag=pcpapi-20
Case: ROSEWILL ATX Case , Mid Tower Case with Blue LED Fan
https://www.amazon.com/dp/B01IT0TDY6/?tag=pcpapi-20
Optical Drive: LG Electronics Internal Super Multi Drive Optical Drive
https://www.amazon.com/dp/B00MOUBYDQ/?tag=pcpapi-20
GPU: ASUS ROG STRIX Radeon Rx 480 8GB OC
https://www.amazon.com/dp/B01J3TZJOA/?tag=pcpapi-20
Processor and motherboard: Ryzen 5 16​00x and mo​therboard ​Combo
https://www.newegg.com/Product/ComboBundleDetails.aspx?ItemList=Combo.3482371

List: https://pcpartpicker.com/list/kcXBJV
 
What applications will you be using? If you'll be doing a lot of photo, video, and audio editing then you'll want 16GBs. If it's just for gaming, office work, surfing, video watching, and even light editing, 8GBs will be fine.
As others have said, you may be better off with an i5. Also, have a look at the 4GB versions of the RX 480 or the GTX 1060.
 

maikutech

Distinguished



If thats you want to do with it, you don't need a high end ryzen chip.

https://www.amazon.com/gp/offer-listing/B010T6CWI2/ref=sr_1_1_olp?s=electronics&ie=UTF8&qid=1492463702&sr=1-1&keywords=lga+1151+quad+core

+

https://www.amazon.com/gp/offer-listing/B0165YUDTM/ref=sr_1_1_olp?s=electronics&ie=UTF8&qid=1492463748&sr=1-1&keywords=lga+1151+motherboard

240.00 doesn't include prime discount or amazons famous taxes and shipping charges.

If you buy both of them used in very good conditions, you could save some money and get away with murder for under 500.00 bucks.
Alcerys does have a good point, thats why I mentioned that as something to pick from also.
 

Theinventor10

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Apr 8, 2017
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Thanks for your suggestion I'm probably buying a better CPU then I really need, what GPU do you think would work for running games like Arma 3?
(I already have a Radeon r7 240 2GB graphics card sitting around in it's box)
 

maikutech

Distinguished

g-unit1111

Titan
Moderator


How much are you looking to spend overall? The R5-1500X is a steal for the price. I wouldn't touch a 9590 with a 10 foot pole. The i5-7600K and the i3-7350K are also great choices.
 

maikutech

Distinguished


He doesn't like dualcore cpu's for high end gaming like that.
 

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