Differences between hd 6770 and gt 540m? **

like title says

 

6750 in MBP is c10% faster than early 540m in benchies, would believe 6770 would expand this difference by another 5-10% due to higher speeds & gddr5.

Would you care to give an example of a scenario you'd put these in? For typical consumer and 720p screens you wouldn't really notice the difference.

 

thank you for responding
I was just wondering in games like gta iv. Which card would perfrom better at standard 1376*768 resolution (i thinik thats the stock resolution)
And do you have a link to back up your research

 

The 6770 is based on the older core and not the new Broadway. The 540m is using a revised version of the Fermi core. Unless you are getting a 540m w/ DDR3 (most I've seen) and not a GDDR3/5 version I would probably stick with the 6770.

 

i'd give the 6770M about ~20% faster than the 540M,

either way they have nowhere near the bandwidth/performance of 256-bit memory bus cards, so if your looking for Crysis 2 @ medium-high settings, these cards won't deliver

 

The 6770M will be a bit faster than my GTX 260M, so I'd give it a 40% advantage, versus the 540M.

 

No. The 6770M is one of the new chips (it has 480 stream processors just like the 6600M series, but is clocked higher and should have GDDR5). Kevin Jack is correct: it should be considerably faster than the 540M (40% seems reasonable, but more if you are bound by memory bandwidth).

 

wut... That's seriously close to the performance of the Mobility 5870...

 

No in terms of GPU power, the HD5870M is still more than twice the HD6770M. CZX58 Shadow no worries, only the GTX 470M, 485M and HD6970M is faster than your GPU.

BTW 40% faster than 540M isn't even close to your HD5870M. I think the larger percentage is clouding your judgement. And even then, I don't think it's 40%, probably more like 20-25%.

 

The 5870M isn't that fast.

And just look at the two versions of the Mobility 5850. The GDDR5 version is about 40% faster.

 

More like at least 20% according to my numbers.

Broadway is not a new core, and what Althernai said. It's based on Turks which is a new part and is roughly a Barts-Pro chip cut in half.

Anyway we need to wait for more reviews. Here you can get some in game fps for the 6750M and compare it with the 540M here which might give you an idea. The 6770M has 21% higher clocks so it should widen the gap. 20-25% more perf compared to a 540M sounds very conservative. The GT540M and the old Radeon 5730M look about equal. Now compare the 6770M with the latter : twice the bandiwdth, higher core clock, 20% more SP on a more efficient architecture. 40% doesn't seem so unrealistic.

 

I said GPU Power. The HD6770M is about 696 Gigaflops. HD5870M is about 1.2 Tflops. So my statement is correct. I did not say performance in games.

But in games yes, it will likely be almost twice as fast @ 1080p still. The HD5870M, GTX 460M and up to 485M/6970M were all made to play games at 1080p, HD6770M and others were not. They are mid-range and often mid-range laptops do not have 1080p LCDs.

AMD did not completely redesign the stream processors, they are still based on the HD5xxx. With only 480 streaming processors, I don't see it benefiting much from the 32 ROPs that are included in the newer architecture. So yeah, HD6770M is a great succesor to the HD5770M, but I think your assessments are overblown. AMD is about making money, not giving away performance for free. They are not any more benevolent as Nvidia. Their increase in performance over previous generation aren't earth shattering. The HD6970 is on average 5-10 FPS faster than the HD5870, big deal. The HD6970M which will have a HUGE increase in performance over the HD5870M, but that also requires a lot more power and a lot more money. Which is why neither MSI or Asus will be using it. Power/Performance is not free. It's incremental.

 

6770M has 696Gigaflops and 5870M gets 1.12Tflops according to AMD. That's 60% more which is still a lot but not >100%.

 

Yes you are right. Anyways, the HD5870M I'm sure majority of users is using around 1.2-1.3 Tflops as they are more than likely overclocked to 800/1100. The HD6770M my guess vendors will underclock to emphasize battery life.

And in the end, it doesn't matter, my only point to Shadow is that no, the HD6770M isn't going to be showing up his HD5870M.

 

it never will.. no chance of it. Anyways i guess its pretty much about 20-30% faster than 540m.. was same in the case for 5650 and GT330M..

 

We're using FLOPS to determine gaming performance? Come on, it doesn't even almost work that way.

Anyway, using the Mobility 5870 to downplay the 6770M is not the purpose of this thread. All I'm saying is, the 6770M is as fast or faster than the GTX 260M, at least in Vantage. I originally stated this, to show how much more powerful it is than the GT 540M.

Yes, it only has 480 shaders, but they're powered by 128-bit GDDR5. This memory does propel the 6750M/6770M into the lower rung of enthusiast chips. They absolutely dominate any midrange GPU.

The worst-case scenario is performance on-par with the 9800M GT.

In conclusion, the 540M is a Medium settings @ 1280x720 part, while the 6770M is going to shine with High settings @ 1600x900.

 

However, the 6770M is still 40% less than the 5870M since it has 480 Shaders vs. 800 from the 5870M. The Shaders still influence the performance dramatically.

 

what about the 540m ? how many does it get a second

 

the gt 540m is a rebranded gt 425m/435m, with a slight overclock. It should and performs on par with the 6500 series, and in some games the 6600 series.

 

I know this is a loaded question but anyone have any idea how well the 6700M will run Diablo 3? I was hoping to achieve medium or semi high settings at a constant 30-40 FPS.

 

Well we don't know the specifications for D3 at the moment, but judging on SC 2, I think you can do medium-high if you stick under 1680x1050 resolution.

 

i'd say medium probably.. SC2 is really demanding so if Diablo 3 is about's same , i say medium.

 

Definitely high settings for Diablo 3, as it will be optimized for lower-end, mediocre hardware.

 

Thanks for the responses. Now if they would only release it after wasting the past 3 years of my life.

 

Is that the new DV6 you're looking at?

I like it a lot.

 

i know it will be faster than gt 540m is it faster than gt 555m?

 

If we're talking about the GT 555M w/ 192-bit GDDR5, no, the 6770M won't even get close.

 

Where did you see a 555M with GDDR5? Nvidia's page only mentions GDDR3. Did some laptop manufacturer go above and beyond the basics for a change?

 

I agree the dv6t QE with 6770M is a sexy looking laptop with quality materials.

I want a damn picture of the internal heatsink/fan though.

 

Yea I ordered a DV7T QE, should be shipping in the next few days. Great hardware for a decent price.

 

Did you tell that to Barts? Barts at 960 shaders, versus Cypress at 1600. Clock for clock, it only lags 15% behind.

The 6770M will completely blow away the 540M. I think it will also beat out the 555M, just slightly. It will still likely be slower than a fully clocked 5870M, but not by the margin that many are saying. That is my prediction.

 

I don't think so man. The Shader Processor tech for 6000 Series vs. 5000 Series is the exact same. So they are compared exactly the same. The difference is still dramatically noticable between the 5870M vs. the 6770M. Also note that the 5870M is based off of the exact architecture of the desktop 5770, while the 6770M is based off of the successor to the desktop 5650. Still quite a difference mate.

For the context between the 540M and the 6770M, the 6770M is still a better card for all its worth.

 

I think the mobile ones are still using 5 way shaders.

Remember the desktop 6 series used 4 way shaders which are more efficient.

 

That too... Even the upcoming 6970M is using 5-Way. Its confirmed. What I meant to say is that 6000M is old tech, SOME of the desktop 6000 is new tech.

 

The tech is NOT exactly the same. Both use 5D shaders, yes, but so did the 4000 series, the 3000 series, ect. The 6000 series has been refined to the point that it results in a significant performance increase.

Only the desktop 6900 series uses 4D. All other 6000 cards, both desktop and laptop, use 5D shaders.

 

You can't have it both ways man. Cypress was 1600 5D shaders, Barts is 960 5D shaders. The comparison stands. Cypress was not a very balanced chip, the result was that it had more shader power than it could utilize. Hence, you have Barts and Barts XT, which are 960 and 1120 shaders respectively.

The only caveat at this point is whether or not Whistler gets 8 or 16 ROPs. Not sure whether AMD's documentation is correct or not. If so, that is about the only part of Barts that did not cary over to whistler. Time will tell, when people start benchmarking these puppies. Expect the 540M to get utterly dominated in real games, and expect the 6770M to edge out the 555M.

 

I guess I have been looking down on the 6770M... Maybe the new MBP's are better in graphical power than we think...

However, the consensus is simple that the 540M is absolutely rubbish vs. the 6770M.

 

5800M was incredibly wasteful, when it came to utilizing its shaders. That's why 6800M can close the performance gap, even with such a reduction in shader count.

 

You're talking about desktop parts I guess, so there should be no "M". Or is it 6700M instead of 6800M ? Either way I agree, those 480sp cannot be compared to 480sp on the old architecture so quickly. I'm also confused regarding Whistler's ROPs count, so far GPU-Z says 16, AMD says 8. 16 sounds right (half Barts) but AMD should know better on the other hand.

 

Oops, yeah both "M's" are mistakes. To be specific, I was referring to the 5850 vs 6870.