Monday, April 22nd 2013
AMD Radeon HD 7990 Clock Speeds and Core Config Confirmed, Tested
Ahead of its April 24 launch, AMD board vendors has been distributing marketing materials to their retail partners. One such retailer in Japan revealed the flagship graphics card's specifications sheet, revealing details such as clock speeds and GPU core configuration.
To begin with, AMD isn't compromising much on clock speeds on the HD 7990 "Malta," in an effort to lower power draw. The card features GPU core clock speed of 1000 MHz, which puts it above the single-GPU Radeon HD 7970, but not much lower than the Radeon HD 7970 GHz Edition, with its 1050 MHz. The memory is clocked at 6.00 GHz, on par with the HD 7970 GHz Edition, which yields a cumulative memory bandwidth of 576 GB/s.
Moving on to the core configuration, the Radeon HD 7990 "Malta" doesn't disable anything on the "Tahiti" silicon. It uses a pair of "Tahiti" chips, with 2048 stream processors each, 128 TMUs each, 32 ROPs each, and 384-bit GDDR5 memory interfaces, each. The card features a total of 6 GB of memory, 3 GB per GPU.
In another slide, AMD gave retailers performance numbers for the Radeon HD 7990 "Malta" from its own testing. The HD 7990 is pitted against GeForce GTX 690 and GeForce GTX TITAN, and the three cards were put through 3DMark "Fire Strike" in performance and extreme presets. In performance preset, the Radeon HD 7990 scored 16 percent higher than GeForce GTX 690, and 29 percent higher than the GTX TITAN. In the extreme preset, it kept the trend up, scoring 15 percent higher than the GTX 690, and 31 percent higher than the GTX TITAN.
Source:
Hermitage Akihabara
To begin with, AMD isn't compromising much on clock speeds on the HD 7990 "Malta," in an effort to lower power draw. The card features GPU core clock speed of 1000 MHz, which puts it above the single-GPU Radeon HD 7970, but not much lower than the Radeon HD 7970 GHz Edition, with its 1050 MHz. The memory is clocked at 6.00 GHz, on par with the HD 7970 GHz Edition, which yields a cumulative memory bandwidth of 576 GB/s.
In another slide, AMD gave retailers performance numbers for the Radeon HD 7990 "Malta" from its own testing. The HD 7990 is pitted against GeForce GTX 690 and GeForce GTX TITAN, and the three cards were put through 3DMark "Fire Strike" in performance and extreme presets. In performance preset, the Radeon HD 7990 scored 16 percent higher than GeForce GTX 690, and 29 percent higher than the GTX TITAN. In the extreme preset, it kept the trend up, scoring 15 percent higher than the GTX 690, and 31 percent higher than the GTX TITAN.
62 Comments on AMD Radeon HD 7990 Clock Speeds and Core Config Confirmed, Tested
My reason is its not gonna help much by trolling about it. It's just making the forum dummer and perpetuating the Green vs Red mentality.
A better example is what Nvidia users did. They flooded the Nvidia and its Forums for a fix and Nvidia responded 5 months later with drivers that minimized the issue.
Obviously its not a hardware fix since it was apperantly affecting Nvidia both in Non-Vsync and V-sync situations and in Single and Multi-GPU sitiations.
Are there issues fixed ?, No. but you dont see reviewers or as much forum play out of it outside of Nvidias own forum.
Information is there from all the PcPer information has dumped that in single GPU Nvidia has catching up to do to AMD but that not the focus right. No its multi gpu and the same data is showing how horrid the variance is past 1080p Nvidia at there current "Driver Fixed" state.
Driver releases are changing that for both camps and i suspect will continue to keep changing.
You said it yourself. AMD is aware of it and is working towards a solution.
How well served would the forum be if AMD users pointed out that Nvidia has worse variance in single gpu comparasons on every Nvidia news post. Would they be happy until Nvidia releases a statement on it or even after that provided a time window for improvements.
Eventually those "post" show up by those people.
Crossfire is useless. :roll: Simply, my "qualifications" for what I consider "working" and what I consider "not working" are different than your own. Yet as much as I am critical of AMD, here I sit with multiple AMD GPUs in the system I am typing from right now...and AMD's driver crashes have BSOD'd my system no less than three times already today. Let's forget frame latency, and talk about REAL issues. :pPersonally, I don't have any Nvidia hardware, so I have no idea about what issues they might have. But the fact they do or do not have issues does not minimize AMD's issues, for me. It's just simply not relevant to me, since I hate Nvidia anyway.:p
Please do keep in mind that I am in no way TPU's "spokeperson", My opinions are my own, and do not reflect the opinions of this website, contrary to what EarthDog's link above seems to think.
Go and squabble elsewhere!!!!!
Somebody moderate the thread please!!!!!!!!
The information has been put out there and its fact that it should be working better for him since the competition managed to improve it a year earlier. So it is possible.
I think he is smart enough to know that but when someone frustrated there frusted and thats that. You just cant help it. I think its worse for him cause hes staring at his issue 24/7 <-addict.
I'd go do a WOD or something to cool off.
You're right, Xzibit. I am pretty frsitrated, so I do have pretty strong feeling about AMD releasing a card that "supports" Crossfire in a way that is fundamental to it's ability to work right. I've waited now 18 months for some nice working 7-series Crossfire drivers, and Win8 drivers since Win8 launched.
I did take a break for several months... :o
Now AMD's kinda saying they are going to fix it...and I am a bit loath to believe them, since there are many many issues here, and the whole frame latency thing is a just part of it. I really hope AMD pulls this off, honestly, and if they do, I'll be one of the first to buy.
Sorry, couldn't help myself with that one. :p
We are looking in to changing that around a bit, for the record... :toast:
My posts in the forums are all my own, and never reflect any opinion TPU as an entity might have. I am not under the employ of TPU.
Personally, TPU is W1zzard, GPU-Z, and all of us users. When I stop doing board reviews, everything else will continue, and I'll still be a user. :p
I too am running Windows 8 and 7970 crossfire. My cards are overclocked and run 24/7 for WCG, and they only stop when I stop them to game. I said it before: I don't deny the issue of frame latency, and yet I still maintain that it's not as bad as most proclaim, similar to EarthDog's stance.
I'm not particularly addressing Dave, as he may be more sensitive to things like that (I don't get sick from anything in my system), and/or he may be more attune to noticing slight stuttering. Id also bet that most are not at Dave's level, inclouding myself. I have noticed little things randomly, like minor stutter or whatnot, but nothing that has been major.
My games don't crash, and my system runs maxed 24/7. My pc rebooted once during the night a while ago while crunching, not sure why, but it hasn't happened again.
Recently the only issue I had was Crysis 3 crashing a few times, and that turned out to be an unstable overclock. I backed it down 15MHz and it's been fine size.
So tl;dr
My system runs 24/7 and runs well. Yet, I look forward to the newer drivers from AMD, but til then I'm still fine, as most probably are.
And on topic, I'm stoked for the 7990 :toast:
again haven't run amd since my 2900xt (and tbh I actually loved that card) so I can't speak to current issues. But even with nvidia multicard solutions, you need vsync on.
my last two cards where 4870x2 / 6990 and this one will definetly kick greenboys butts !
and yeah the 4870x2 still runs great on latest game titles so it was a good investment.
may i´m blind but the dual card runs great, never had a chance to compare a dual vs. 2 single of same type GPU´s and didn´t realize micro stutters, btw who has time in e.g. BF3 to fetch it ?!
i hope W1zzard will get his hands on it asap :)
Hardware wise, ATI cards are better, but if you want a reliable experience you pay the extra for Nvidia drivers.