AMD Radeon 7990 reviews thread

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Rvenger

Elite Member <br> Super Moderator <br> Video Cards
Apr 6, 2004
6,283
5
81
Except Titan, yes.

Titan is special :thumbsup:



Titan isn't all that special being that its only 30% faster than a 7970 on average. I can't tell the difference in performance unless I look at numbers. It was a boring card to me, especially when buyers remorse starts kicking in. For a $1000 card, I felt like I was cheating my way for better performance. At least the 7970 gives me a challenge.
 

Elfear

Diamond Member
May 30, 2004
7,115
690
126
Titan isn't all that special being that its only 30% faster than a 7970 on average. I can't tell the difference in performance unless I look at numbers. It was a boring card to me, especially when buyers remorse starts kicking in. For a $1000 card, I felt like I was cheating my way for better performance. At least the 7970 gives me a challenge.

How big of a difference did you notice when both were overclocked?
 

bystander36

Diamond Member
Apr 1, 2013
5,154
132
106
I fully understand how the Titan feels like you are over spending, as the price is huge. That said, it does have its advantages.

I frankly don't see anything new exciting you unless it is radically new, but radically new is something that is rare. 3D Vision is the most exciting thing I've used in a long time.
 

Rvenger

Elite Member <br> Super Moderator <br> Video Cards
Apr 6, 2004
6,283
5
81
How big of a difference did you notice when both were overclocked?


I never overclocked my Titan but it was a superclocked model and the boost clock was 1045mhz consistant. My 7970 at 1100 MHz I cannot tell the difference at all unless I am running benchmarks and seeing numbers. BF3 feels the same, Crysis 3 feels the same, Tomb Raider feels the same. I think some of this maybe a CPU bottleneck at this point too, especially Crysis 3.
 

BallaTheFeared

Diamond Member
Nov 15, 2010
8,115
0
71
The special part is where it's so much faster at exactly the same power consumption level on exactly the same node.

It's the gem of 28nm.

Every generation we've been able to place two mid-range gpu's together and beat the top gpu, 680 and 7970 aren't an exception.

If you can't notice the difference between Titan and the 7970 you might as well keep going lower until you stop wasting your own money.
 

Elfear

Diamond Member
May 30, 2004
7,115
690
126
The special part is where it's so much faster at exactly the same power consumption level on exactly the same node.

It's the gem of 28nm.

The Titan is an impressive engineering feat but it did have a whole year of development compared to other 28nm GPUs to get to that point. There have been more impressive GPUs in the past. Especially when you consider pricing which is much more important to the end-user than engineering coolness.

3870 --> 4850/4870 Less than a year later on the same node




3870 --> 4850 = 6% more power and 30-48% more performance
3870 --> 4870 = 20% more power and 58-100% more performance
 

Souv

Member
Nov 7, 2012
125
0
0
Which is all I'm saying, no need to use a bad product as an example to detract.

At that time,4770/4850 and 4870 were best cards out there in market with magnitude of power efficiency over previous gen 3000 series.
4870 is the world's first GDDR5 card and hd 5870 is the world's first DX11 card in the market.
 

BallaTheFeared

Diamond Member
Nov 15, 2010
8,115
0
71
Sorry, but this reviewer is a moron.

Yeah um, wut.. He said if you SLI/CF two different cards you only get 2GB/3GB but if you get one of these cards you'll have 4GB/6GB and I was like, :whiste:

Oh god, he continued on to confuse TDP/Power and Temps. /facepalm
 
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Souv

Member
Nov 7, 2012
125
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http://www.maximumpc.com/article/videocards/amd_radeon_hd_7990_first_look

"Amd malta 7990 winning 6 out of 10 benchmarks against the gtx 690 and 8 out of 10 with gtx titan"

Frame Latency and micro-stutter

"As far as the HD 7990 goes, here is the situation. Yes this card and the latest drivers we used (13.5 beta 2) suffered from micro stutter, but it was imperceptible in most games with one major exception — Far Cry 3. We’re not sure what it is about Far Cry 3, but it runs like crap on this setup at 2560x1600 with 4xAA. We mean it feels like you are running through molasses the whole time, and when examining the frame time output from FRAPS it is easy to see why, as the latency between frames fluctutates wildly. When examining the frame time charts from other games the delivery times look pretty consistent, with only Crysis 3 showing some anomalies. AMD has told us it is working on a fix for this situation, but the remedy will most likely be a software implementation rather than a hardware fix. We have yet to receive and test a final software fix for this issue, and will sure to update you when we have tested it. "
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
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Just noticed we didn't list [H]'s review either. This is from too big of a player not to even make the list, IMO.

Radeon HD 7990 versus GeForce GTX TITAN Review

The Bottom Line

We were impressed that one single video card, the GeForce GTX TITAN could provide us an above average gameplay experience in NV Surround across three displays at 5760x1200. The $999 GeForce GTX TITAN was even able to match the $999 AMD Radeon HD 7990 in gameplay experience in a few games. However, the more demanding games leaned toward the dual-GPU video cards for the best performance and experience at this resolution. As we look forward to other more demanding games in the future, like Metro: Last Light, dual-GPU may still be the faster solution.

In terms of price and nothing else, the $999 AMD Radeon HD 7990 video card is a better purchase than one single GeForce GTX TITAN. We know two TITAN's in 2-way SLI will blow HD 7990 out of the water, but it is also $1000 more expensive. However, the real show stopper is still two separate Radeon HD 7970 GHz Edition video cards with CrossFire enabled. Those can be purchased at $100-200 less expensive than GeForce GTX TITAN or AMD Radeon HD 7990, and provide a lot more performance. 7970 GHz Edition CrossFire will win every time, and by a larger margin than Radeon HD 7990.

Strange they should say, "In terms of price and nothing else", when the 2 cards are the same price. I think what they mean is that the Titan gives exceptional performance and it's only a single GPU. Dual GPU setups are typically better perf/$, so it's not surprising it's the case here again. What's more of a story here is how powerful the single GPU Titan is.

If they really wanted to show these $1000 cards are overpriced, they should have compared them with a pair of HD7950 Boost models at ~$600 (or less). That might have embarrassed both companies for screwing us with these prices.
 

pandemonium

Golden Member
Mar 17, 2011
1,777
76
91
I think the only redeeming quality of the Titan (speaking purely for gaming) is the power draw being so much lower than similarly priced options. However, the final remarks on that review aren't very clear since it says saving 165W is good, but it doesn't compare to how much less FPS is averaged.

Just think, GeForce GTX TITAN is within 30% performance of GTX 680 SLI and Radeon HD 7990, but overall saving 165W compared to HD 7990 and 152W compared to GTX 680 SLI.


Full load comparison between Titan and 7990 (371W/536W): .69 ratio
Gaming benchmark average " (A2A: 39.325AveFPS/52.15AveFPS): .76 ratio

Not amazing, when considering both cost $1k, but by watts consumed it is doing it 7% more effectively.
 
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