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AMD Radeon R9 290X with Hawaii GPU pictured, has 512-bit 4GB Memory

Cheers guys and Purgatory isn't any fun at all :(

I did say that and I would love to stand by that comment but it is looking a little wobbly now :D

Fair play at least you can stand up to it mate. Onwards and upwards.

I'm going to be crucified and deservedly so if a 2gb card or two has enough vram for Battlefield 4 at 1600p on Ultra with x4 AA. :D

If im right though then Tone can buy my mate a copy of the game. :p

I'm back as well!

Back for good! Cue song.

Even if it does match a 780/Titan both have been out for considerable time. You've also got to account for overclocking headrooms... Titans and 780s are quite comfortably pushing 1300 even on air with the hacks and bios flashes available.

Personally I couldn't give a toss which one is faster for the purpose of a forum argument when I've had the level of performance the next AMD card will allegedly offer for months already :). I doubt it will shake things up that much on the price/performance front initially. Later down the line is where AMD become stonking value for money.

I think that performance increments have been so lacklustre between generations that aiming to match a card which has been out for months already is not doing anything to really advance things as a whole. It was the same with the 7950 (stock) aiming only for the 580. Not really that exciting or evolutionary.

It's not AMDs fault, it's not nVidias fault - it's an issue with PC hardware in general.

Welcome back Rusty. :)

Where's Spoffle and Humbug?
 
This card has ruffled Nvidia's feathers. The smear campaign is already in full effect. Check out pcper for more info on that. :D

Anyway i see the 512bit bus giving this card the edge over the 780/titan, just like the 7970/50 hold the edge over the 770/680/670 with the extra 128bit bus width. Assuming that we'll see typical GCN core overclock performance. If we do i can see this card pulling clear until Nvidia can bring something out to beat it 6+ months down the line.
 
The memory bandwidth is the same though, because of the slower rated memory (if it really is only 1125mhz?)

Edit: Welcome back Rusty! :D

Its 1250mhz i believe tone. That should work out at around 320 gb of bandwidth vs 288gb on the 7970 ghz.

If the memory is Hynix as we all expect you will get crazy bandwidth with overclocking.

I could only see the 512bit making a difference at 1600p and above, maybe 1440 in some games.

It will make less of a difference at low res obviously. But high levels of AA and high resolution it will definitely make a difference. Just look at 670/680/770 vs 7950/7970 results at high AA levels or high res/multi monitor to confirm that. There is a drop off, assuming you have the core grunt to power it.
 
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But that's different as it's been shown that a 256 bit bus can be slightly limiting in some games at 1080p. It might be that the 384 bit bus on the 7970s/780s has enough headroom for more (especially when clocked) so the 512 bit bus just increases that headroom further and as such has no discernible benefit.

There's no evidence of the 384 bit bus cards really being bandwidth limited.

Its sill going to give the 512bit bus an fps advantage. I'm not saying that 384bit performance will necessary suffer like a 256 bit bus though as i agree that's unlikely.
 
How will it though if the memory bandwidth on the 384 bit cards is not saturated?

We'll see. I'm willing to bet its going to make a difference on demanding games with high levels of AA, high res and multi monitor. More bandwidth rarely = the same performance unless the game itself is not demanding at all and thus is not using much memory bandwidth. Or you don't have the core power to drive it.

I think we should drop the memory thing already, we'll find out when the benchmarks are out, I've seen the bus, bit and bandwidth discussion spiral out of control already in another thread.

Agreed there's no easy way to prove whether a 384/512 bit bus is saturated or not until we see benchmarks, overclocks, high settings, AA settings, resolutions, demanding games/benchmarks and multi monitor results.
 
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What kind of FPS boosts do you get from stock memory to overclocked memory? Aimed at both you and Rusty as you both have 1440p to hand, so can check :L

Pick a demanding game like Crysis3 (loads of AA) and compare stock vs overclocked on the memory, that should give you rough benefits of running a 512bit bus providing the memory is clocked like you say @1250mhz. (+335 is 320gbs for 780s?)

I got 10% on my 7970 on Sleeping Dogs 1080p Extreme by going from 1375mhz=264bit to 1823mhz=350gb bandwidth. Core clock was left at stock both times. I even posted a benchmark here for someone when i was helping them with technical issues. I'll see if i can dig it up.
 
What kind of FPS boosts do you get from stock memory to overclocked memory? Aimed at both you and Rusty as you both have 1440p to hand, so can check :L

Pick a demanding game like Crysis3 (loads of AA) and compare stock vs overclocked on the memory, that should give you rough benefits of running a 512bit bus providing the memory is clocked like you say @1250mhz. (+335 is 320gbs for 780s?)

I got 10% on my 7970 on Sleeping Dogs 1080p Extreme by going from 1375mhz=264bit to 1823mhz=350gb bandwidth. Core clock was left at stock both times. I even posted a benchmark here for someone when i was helping them with technical issues. I'll see if i can dig it up.

Hey i found it!!

Looks like my memory (brain memory :p) was slightly wrong though. I had the core at 1250mhz for each run. Probably just as well otherwise you wouldn't see much difference i expect. :)

1375mhz vs 1875mhz on a 384bit bus 10.4% at 1080p. Here's my post

I haven't but seeing as you asked i just did a quick test. I only ran one game but will run a couple more later when i have time.

Sleeping Dogs - 1080p Extreme 1250 Core vs 1375 stock and 1875 OC'd.

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I speculate the difference would be larger at a higher res (1440p+) although we might not see it as the pixel fill rate might hold it back somewhat.

http://forums.overclockers.co.uk/showpost.php?p=24133681&postcount=19
 
What about a normal game though lol? Not one with insane levels of AA - added no doubt to exaggerate the difference between the nVidia GK104 cards - which were largely unplayable on a single card :p.

Lol. Didn't take the excuses long to start rolling in.

I'm willing to bet its going to make a difference on demanding games with high levels of AA, high res and multi monitor.
 
Main reason with 512bit was to save die space up to 50%! as they can use lesser ram speeds for it and the tdp value.

I assume 4K and eyefinity gaming going to be wild with these cards.

I just hope they don't do a 'select 780' and skimp on Elpida. Elpida memory brings shame upon many a gpu, including mine. :D
 
Well I was just thinking of a game people actually play and is going to reflect real world performance. Sure we can pick things which exaggerate the difference in extreme scenarios but for me that isn't proving anything.

*looks at Matt's #1 world Sleeping Dogs play time on Steam, most of which was spent benching*

:p

:o

No need to get personal. :p
 
Nice Sammy memory on my 780 :cool:

Yes i know its only a select few (like my 7950's :p) that got cursed with the dirty Elpida memory. Still though what a way to spoil a nice card like a 780 by putting Elpida on it. I hope AMD aren't forced to do that. Technically they could because of the 512bit bus so the impact of it will not be as great but it would still suck. Time will tell.
 
Dunno what memory my 780 has but it clocks pretty well! 1800+

I would have thought Hynix Rusty. If you had Samsung memory it would be at 1750 mhz wouldn't it?

Just had a glimpse of the full guest list for tomorrow !... a lot of sites are going to be there :D

Aye its gonna be exciting. Lets all get our nerd on. First event like this i will have ever watched live. Possibly the last if it turns out to be boring. :p

Why is Samsung memory so good? Their SSD's are some of the best, same with their RAM as well.

Strokes 840 pro and Sammy Green :eek:



Definitely Samsung, don't think I've ever seen Elpida break 7000mhz on a 780.

Don't know a lot about samsung memory aside from their dram sammy green memory is the best ive ever used. I hear good reports about their 1750mhz memory used on a 770 as well. Allowing it to at least get within reasonable distance of a clocked 7970.

Do 780's have 1500mhz rated samsung memory then?
 
How much bandwidth do ya need?:p

Granted Elpida on a 512bit bus will probably be plenty. But still i hope they go the hynix/samsung route.

I actually have some of the best clocking 7950 Elpida ram ive ever seen but id still rather have hynix. The name Elpida just sounds cheap, like Lidl or Aldi. Sure we all shop there, but no one admits this publicly. :o :( :p
 
I'll have to see what my 780 can do, not even overclocked it yet...just been running stock :(

@Matt, that is a nice perf boost but ultimately that is "best case" most games require nowhere near that kind of memory bandwidth. Would be nice to make a benchmark of a few AAA games with just memory overclocks.

If i wasn't so lazy it'd already be done :)

Granted mate but if you look at my original quote this is exactly what i said. I would expect similar from crysis 3 at highest settings with AA. It will make a difference thats for sure in some games. I predict this is enough to give the card the edge over the competition. After all it has less shaders, smaller in die size, fewer transistors, less memory. The only advantage it has is a bigger bus, oh and it will cost half the price of a titan. :p
 
Ha, i know what you mean. Only had my GTX 670 sli for just over a month and would be tempted to get one of these if it is £400 or under.....

Thankfully i think AMD will price it out of my budget.....i hope...sort of :D

You know what they say (by they i mean Rusty) Jono. Once you go black you never go back. The same applies with equivalent AMD cards. :p

Grouphug!
24 hours and 25min to stream....:D

All aboard the 'mantrain'. (yikes don't search that 'term' with safe search off :( )


RFtyltP.png
 
Yeah $550 to $600 is what AMD Said

So best case, or £450 to £470.

I hope you have a selection of gif's ready?

Did they say that though? I'm not sure they did. Just that they're not going to target titan price ranges. With the 7990 being £600-£700 once pricing goes up the 290X is going to sit below that.
 
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