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Is a 7950 really better? - Page 3

post #21 of 39
Quote:
Originally Posted by Bryst View Post

By that logic since the 270 gets within 3-4 fps of a 7950 couldn't I overclock it and get within say 4-5 FPS of a 7970? smile.gif ;p

Unfortunately no, because the 7870/270X are already clocked at 1000Mhz, while the 7950 is only clocked at 800Mhz.

Even if a 7870/270X was clocked at 1200Mhz, you would barely scratch 7970(1000Mhz) speeds.

A 7950 clocked at 1000Mhz is VERY close to a 7970(1000Mhz). If you clock a 7950 to 1200mhz, you get close to GTX 770 and 780 speeds ($400~600 range).

Honestly, I would just buy the 270X and call it a day. If you're set on it, it's hard to persuade you to get the card with more value behind it. At least you'll be happy with FF14 with either card you get as you'll be able to double your performance.
    
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post #22 of 39
Quote:
Originally Posted by Bryst View Post

Again wasn't looking for advice I was pretty set on the 270 unless I can get a 7950 for 200. I'm sorry if that comes off rude. My main goal of this thread was for somebody to give me a solid reason why everyone recommends A 7950 over a 270 .

and like you said the 7950 is more future proof with having more VRAM and all. and everybody claims the 270 is just a rebranded 7870 , but clearly it's a little bit more since it performs better in the benchmarks. I guess maybe it just boils down to old favorites die hard.

Every card that's the Champ at best price to performance have to get over thrown it sometime right?

Everything will become obsolete eventually and it seems to be happening faster and faster these days, I just had a look and it turns out you can get a 270x in 2gb and 4gb models " http://www.amd.com/us/press-releases/pages/amd-unleashes-r9-2013oct07.aspx Unless you can find a very cheap 7950 then that 4gb 270x looks promising thumb.gif
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post #23 of 39
Quote:
Originally Posted by HeadlessKnight View Post


That 7950 in the review you posted is running @ 800 MHz. which has been long time updated into Boost Edition at 925/850 MHz clocks.

Here is a 270X review with 7950 Boost
http://www.bit-tech.net/hardware/graphics/2013/10/08/amd-280x-270x-260x-reviews/4
7950 Boost is faster than 270X.

The reason why people prefer 7950 is a very simple answer. 7950 overclocks much higher than that 270X which is already clocked to the moon out of the box. Max OC vs Max OC that is not even a contest. Crappy clocking 7950s can often do 1100 MHz. This 7870 in disguise will require about 1400 MHz+ to reach that. Good luck clocking it that high stable on air.
That 270X is no more than an overclocked 7870 with a new name.

^this. like i said earlier, be wary of these benches, they don't update some of the numbers. compare this to the BF3 listed using 1080 same settings. mind you this is BF3 MP 64 . . .




7950 stock (840/1250) but my chip is oc'ed to 4.5GHz.
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post #24 of 39
You are asking if 7950 is really better, they are just answering your question.
If you really have a tight budget go get the 270x.
post #25 of 39
Thread Starter 
Quote:
Originally Posted by HeadlessKnight View Post


That 7950 in the review you posted is running @ 800 MHz. which has been long time updated into Boost Edition at 925/850 MHz clocks.

Here is a 270X review with 7950 Boost
http://www.bit-tech.net/hardware/graphics/2013/10/08/amd-280x-270x-260x-reviews/4
7950 Boost is faster than 270X.

The reason why people prefer 7950 is a very simple answer. 7950 overclocks much higher than that 270X which is already clocked to the moon out of the box. Max OC vs Max OC that is not even a contest. Crappy clocking 7950s can often do 1100 MHz. This 7870 in disguise will require about 1400 MHz+ to reach that. Good luck clocking it that high stable on air.
That 270X is no more than an overclocked 7870 with a new name.

Yay someone with actual facts I like facts. wink.gif However I would like to point out that even with the 7950 having boost the 270 in the benchmarks is still within 3 to 4 frame rates. However I did not know is that a 270 does not over clocked that well I would like to see some facts on that though. smile.gif
post #26 of 39
Quote:
Originally Posted by jaydude025 View Post

Everything will become obsolete eventually and it seems to be happening faster and faster these days, I just had a look and it turns out you can get a 270x in 2gb and 4gb models " http://www.amd.com/us/press-releases/pages/amd-unleashes-r9-2013oct07.aspx Unless you can find a very cheap 7950 then that 4gb 270x looks promising thumb.gif

256 bit? nah.
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post #27 of 39
I think this is a common misconception with 7950s. The stock 7950 that you see in almost every benchmark is a stock clock of 850mhz. The entire reason you buy a 7950 over the r9 270x is because of how much better the 7950 clocks. (versus its stock). The r9 270x clocks to about the same clock as a 7950, but the 7950 clocks to about 140-150% of its stock clock of 850mhz. A r9 270x gets to about 20-30% higher of a clock than its 1050mhz stock clock (it is just an overclocked 7870). A 1200mhz 7950 would romp a 1200mhz r9 270x. In fact, at higher resolutions the r9 270x is worse at stock versus the 7950.

Here is a review:

http://www.overclockersclub.com/reviews/msi_r9_270x_hawk/7.htm

MSI Hawks are pretty much the best 270x you are gonna get. They fall short when overclocked. I mean even if you don't overvolt 7950s get well over 1000mhz, and even at that tiny overclock, no r9 270x is going to touch it.
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post #28 of 39
Quote:
Originally Posted by Bryst View Post

Yay someone with actual facts I like facts. wink.gif However I would like to point out that even with the 7950 having boost the 270 in the benchmarks is still within 3 to 4 frame rates. However I did not know is that a 270 does not over clocked that well I would like to see some facts on that though. smile.gif

noobs will look at those benchmarks and say . . . wow . . . and go to egg.
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post #29 of 39
Quote:
Originally Posted by Bryst View Post

I'm not asking for advice though. I'm showing you proof through benchmarking reviews that a 270 performs on par with 7950. Look at the benchmarks for yourself . I'm merely trying to understand why people are still pushing 7950s over a card that is clearly cheaper, uses less power, has a better cooling solution and performs on par.

Please look at the specs at the bottom of this page. The 270X is physically identical to the 7870. They have the same amount of stream processors, ROPs, memory and they're both Pitcairn GPUs. Or look here:
Quote:
Um wait .. so the R9 270X is a Pitcairn / R7870 then ?

Yes, R9-270X is in fact the Radeon HD 7870 Pitcairn graphics core with its 2.8 Billion transistors, the internal architecture has not changed compared to the previous generation products, aside from memory and core clock frequencies.

So what makes it faster than the 7870? The clock speeds. The core is clocked a bit higher and the memory is clocked a lot higher.
Okay, so we've established that a 270X is an overclocked 7870.

Ask yourself, was the 7870 as fast as a 7950? No, even when both were stock, the 7870 was slightly slower. So how did they react to overclocking? The 7870 starts out at a stock 1 GHz core clock speed. That doesn't leave much room for overclocking. Most 7000 series cards can be pushed to somewhere between 1100-1300 MHz on the core, memory overclocks fluctuate a LOT more but matter less than the core clock. The 270X is an overclocked 7870 so how much overclocking potential does it have? Even less than the 7870.
The 7950 OTOH has a stock core clock of 800 MHz. You wouldn't think that today as most manufacturers have increased clocks. If the review doesn't say 7950 Boost edition then that is the clock speed that review sites use for their 7950 numbers. An 800 MHz 7950. The official Boost edition has a default clock of 850 MHz and can boost to 925 MHz and most cards are clocked higher from the factory (e.g. Gigabyte clocks them at 1 GHz). All the 7950 cards regardless of stock clocks and factory clocks can be overclocked to 1100-1300 MHz as well assuming you have voltage control or a high stock voltage (e.g. Gigabyte uses 1.25 V as their default voltage (1.3 V being the max) so their voltage locked card will still overclock very well).

To sum up what we know so far:
  • The 7870 is a slower card than the 7950 when both are stock.
  • Reviewers use 800 MHz 7950's unless otherwise specified, today they are 925 MHz at stock.
  • The 270X is an overclocked 7870 which makes it as fast as a stock 7950.
  • The 7870 has about half the overclocking potential the 7950 has.
  • The 270X being an overclocked 7870 has even less overclocking potential.

The only logical conclusion is that an overclocked 7950 is a lot faster than a stock 270X and a good bit faster than an overclocked 270X since the 7950 has far more overclocking potential.

People would've ridiculed you for suggesting that the 7870 is as fast as a 7950 for $50 less so why would you suggest that the 270X, literally an overclocked 7870, is just that?
Edited by B!0HaZard - 10/26/13 at 3:56am
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post #30 of 39
this card is a nice one works great in my rig lol
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