gtx 560m vs 6990m

hello guys i know that the 6990 is the better card but is it really worth the extra £160/$200 updgrade price on a m17x r3 and what are u getting for your money

 

Considering the proper comparison to the 6990m is the 580m, yes it will be a much faster card. The price jump from the 6990m to the 580m well that is a different matter entirely.

 

Yes the 6990M for 200 is a good deal. It's a significantly more powerful card.

 

the difference is huge well worth the 200dollars

 

Get the $200 it's cheaper than others offering worth $245.

Yummy 69...90M.

 

I'm not sure I would price it at $200 more given it offers about 50% increase in speed (could be more), but fact remains that the 6990M is better/faster than the 560M, and certainly a MUCH better bang for buck compared to the 580M (or the Nvidia competition in the same high-end segment)

 

agreed i think its like £300 what a joke

 

i acutally laughed at the yummy part

 

thanks for the input i think i will go for the 6990m hopefully it will make it a bit more furture proof

 

The difference is (I repeat) 50%... not exactly 'huge' if you ask me... however, you WILL be able to max out all of the latest games at 1080p, whereas the 560M will struggle to max some of the latest games at that resolution.

It depends on the games you play, but also keep in mind that in over 90% of games, past the 'High' settings, you are getting diminishing returns when it comes to visuals (minor, if any that would be barely noticed) at a huge performance impact.

But the 6990M is definitely 'more future proof' than 560M (especially at 1080p).
So, you made a good choice either way.

 

6990 will get u to god status fer now

 

AnandTech - Bench - GPU11

yeah its a huge difference

 

thank you for your help

 

god status i will take that any day of the week

 

thanks for the link very useful

 

Well I showed you the desktop counterparts, but they perform quite similarly, and as you can see it aint 50% improvement

 

noted any improvement is a improvement in my opinon

 

6990M is probably 35%+++++ better then 560M. Also can't u get the 6990M Crossfire? That would be excellent and probably last longer...

 

I really cant see the 35% improvement that you speak off

 

If the notebook is for gaming, I will go for 6990M.

 

You posted desktop grade gpu's, NOT notebook ones.
We need notebook ones specifically for proper testing as your statement is based on assumption for the most part.

notebookcheck (while it should be taken with a grain of salt), shows a difference of around 50% (a few % more or less) that goes into 6990M favor.

The differences in bus width are 192bit for 560M and 256bit for 6990M (that's a 26% difference in bus width - so I doubt that it would give a double increase between the cards).
It also depends on other factors... graphics drivers and which games provide better FPS counts for individual cards (some games favor Nvidia more than AMD, and vice verse).

 

I'm surprised this is even being debated. It's 50 plus percent, at 1080p.

 

Note, that the 50% difference figure is stock.

The 560m runs cool as a cucumber and thus its overclocking headroom is quite high. The 6990m runs hot. OC'ing is a bit more of a balancing act.

The two are in different leagues honestly... and the 6990m is obviously better. However, the real-world difference is not as large as the numbers on Notebookcheck would lead you to believe.

Also, people get all caught up in Memory-bandwidth... the memory bandwidth IS important, but only so much as in we make sure the GPU has enough to get the job done. 192-bit GDDR5 is more than enough for 1080p as the 128-bit GDDR5 Radeon 5xxxm series showed us.

The reason the 6990m is better is the sheer amount of hardware it throws at a mobile GPU.

 

The memory on the 560m is not as fast since it has on par memory bandwidth to the ati counter part, and as an HD5870m owner I can tell you the 128bit GDDR5 is not enough for 1080 gaming on high settings and high fps. The performance drop from 1600x900 to 1920x1080 tends to be huge, and unless you overclock you will have a hard time maintaining high fps on 1080 res.

The HD6990 has, basically, twice the memory bandwidth, allowing not only high res and textures, but also AA with less of a penalty hit.

The increased number of ROPs, texture units, stream procesors already make a huge difference with current game when it comes tu performance, and that gap will only widen as time goes on.

A very high OCd 560m stable for games barely reaches the heels of the GTX570m/HD6970m on stock and its still not as fast as either. A small OC on the HD6990m will leave the 560m eating dust all the time.

 

^^^^ agree.
Also theres no such thing as future proof. 7000 series is due next year. But for now 6990 can max out all games at FHD. So GO with it.

 

Maybe with the GTX 570M's shader count and hardware attached to it.

 

Important to note gents... I did not claim the 560m was better in any way shape or form. I only mentioned the 50% difference was stock.
Assuming both were OC'd the 560m will gain on the 6990m's lead.

As for the 5870m, much like the 560m, it just doesn't have the oomph to accomplish everything at 1080p AND 4xAA in the latest games. I don't think it has anything to do with memory bandwidth. Even if the 560m or 5870m were 256-bit memory interface, it wouldn't change much.

Since the 570m seems to do fine with 192-bit GDDR5, I find it hard to believe the differences between the 570m hardware and 6990m hardware actually finally push the useful memory bandwidth into really needing the 256-bit GDDR5 at 1080p.

Again, additional memory bandwidth is only really useful if you are being bottlenecked by it.

Kevin Jack, I am not sure what you mean here... the 570m has more hardware with which to use the memory interface. It would therefore have more use for 256-bit GDDR5 than a 560m as it is more likely it could use the memory bandwidth for something useful.

 

Not necessarily, given that the 6990m behaves and is based on the 6870, it gives roughly the same performance.

Im not even going on the bus width discussion. Its pretty useless to use that as base to compare such different gpus

 

Memory bandwidth is determined by bus width and memory speeds. Nvidia specified speeds for the 560m like 1250mhz are misleading because they are infact 625mhz. You just need to divide the memory interface by 8 and multiply it by the memory speed total. with GDDR5 its times 4.

the GTX560m has 192bit/8 * 625 * 4 = 60GB/s
the HD5870 has 128bit/8 * 1000 * 4 = 64GB/s
the GTX570m has 192bit/8 * 750 *4 = 72GB/s
The HD6990 has 256bit/8 * 900 * 4 = 115.2 GB/s

115.2/60 = 92% MORE bandwidth to use (HD6990 compared to 560m alone)

Memory badnwidth is the MAIN attribute responsible to push textures, AA and resolution out on a GPU. Of course, a low core clock and low core count won't help since the GPU would be too weak. It's a bout balance.

The hardware difference between the GTX570m and HD6990m are not that huge, but the memory bandwidth is. A heavy hitter game at high resolution and AA will hit the GTX570m much hardware than it will to the GTX580m or HD6990m. In this case, the hardware inside the GTX570m is being held down by the bandwidth for higher resolutions.

GTX560m and HD5870m have even less pixel pushing power and bandwidth so they get chocked much more easily. And example is metro 2033 which runs much much faster and consistently at 1600x900 on said GPUs on high settings, but plumets in some areas when running on 1920x1080. Overclock them from stock to higher memory and the hit is less huge.


If both GPUs (560m and HD6990) are OC'd the lead that the HD6990 might actually widen, considering that the bus interface is bigger so any clock increase gives more bandwidth, and it also has more rops, cores, texture units that with a higher clock will only increase further the performance.

Basically, the 560m is outclassed completely in every area.

 

The 6990 can max out most games, not all.