So Nvidia GT 650M > GTX 660M? Confused.

The Nvidia GT 650M has clocks of 900/1254 while the GTX 660M has clocks of 835/1250, although GPU boost does increase the core on the GTX 660M to 950 MHz if available. The GT 650M has 1GB GDDR5 vs. 2 GB GDDR5 on the GTX 660M, which shouldn't make any difference in real-world performance. So this means that Nvidia is charging more for an equal, if not lesser, card in the GTX 660M?


GT 650M in 2012 Apple Retina MacBook Pro

VS.


GTX 660M in 2012 ASUS G55-VW

 

Not sure of the performance differences, but nvidia's current GPU nomenclature would rank a GTX-card over a GT-card [in the same generation].

I wouldn't expect lesser performance from the 660m, but how much better is it over the 650m, I don't know.

 

haha this is just funny, well good for mac they need some more performance, but keep in mind the card in the mac will be heavily throttled due to the macs terrible cooling system, so basically the boost is 900 and the clocks will probably be much lower most of the time.

 

From what I've seen, the 660m generally does stay at 950MHZ core clocks when gaming. I'd also bet it overclocks better in absolute numbers. People are getting near 1.1GHz for the core over in the GE60 thread.

 

My 650mGT w/GDDR5 glocks are up to 1070 mhz.. Memory is at 2200.



650>660 (thanks to custom bios)

Stock the 650 from alienware turbo's to around 845.

This is ONLY for m14xR2. Can't speak to other models.
Also go out ot the nvidia website and compare the 650m to the 660m. Only difference is clock speed.
Same pipelines, etc...

No seriously.. the 660 (with custom bios) can probably go another 100 mhz higher than the 650 so in theory it
should always be a little faster..

 

Before:
GT 650M
GDDR3 version: Up to 850MHz
GDDR5 version: Up to 735MHz

Apple have actually GDDR5 version but with 900MHz cores. Looking at the homepage now, Nvidia have completely changed the specifications.

Apple`s GT 650M will beat the Asus GTX 660M (GTX 660M: GDDR5, Up to 835MHz)

Very interesting

 

M14xr2



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Stable.. no issues... tested in BF3 for over an hour. D3 for about 30 minutes. COD MW3 for about 30 minutes.

 

Actually the new Macbook have a more than sufficient cooling system which Anandtech bragged about. So no throttling due to thermals there

AnandTech - The next-gen MacBook Pro with Retina Display Review

 

Some say it's reaching the height of a 570, just curios about the temp. If they also do a good job on the cooling system, that will be really amazing for a mac

 

My DDR3 GT 650m ran at 950MHz with boost, and at 1085MHz with the new drivers. Stock speed for GPU is 835MHz.

DDR3 vRAM running at 1130MHz (over stock 900). 3DMark11 over P2900.

Considering both are Kepler I would highly suspect a GTX 660m would run significantly better than a GT 650m.



Notice the bandwidth of the M14xR2 is nearly twice that of my Clevo W110ER? Something doesn't seem right.

 

Impressive CPU score and it's about to hit its one/two cores boost limit.

 

Considering the resolution that drives the new mackbook, they would have commited suicide to include a GDDR3, or veru underclocked version of the GT650m. As it seems, they indeed slapped in a "GTX660m".

Forget the name, it will be far easier to just reference the core and the memory type... Nvidia went full retard when naming these particular GPUs, and when designing their specs of being the same chip with different speeds/memory.

 

Just met a friend who bought the new Retina MBP recently with the base config, which came with the GDDR5 GT 650M. He played D3 for about an hour and I can confirm that the laptop does not throttle at all. I'm pretty sure that the base clock, not the boost, is already 900 MHz, but I don't know what the boost clock is or if it even increases the base clock at all (as the GPU-Z would suggest).

He has the GDDR5 version of the GT 650M. GDDR5 has twice the memory bandwidth of GDDR3 at the same clock speed.

 

I might have considered to try out 17" Ivy Bridge Mac but it seems they discontinued it.
Even the tablets be trolling 1200p screens now.

Sent from my GT-I9100 using Tapatalk 2

 

Sufficient for cooling the CPU and GPU for a game like Half-life2 for 30min, but the outside of the laptop gets hot. Indeed it gets quite warm playing videos. I think the best way to put it is that the Retina MBP is better than the previous generation mostly. You still don't want to game on your lap as it results in a potential form of birth control for men.

About the 660m... it is a binned part. More than likely the best versions go to the 660 bin and a few quite decent ones go to the 650 bin. Both can be overclocked, but the 660m is also set up for more voltage I believe.

Not that a 650m GDDR5 OC'd is a bad plan... I just wouldn't do so in the MBP without a cooler.

 

If I could have an i7 3612qm and gt650m 2gb gddr5 and 1080p screen and 9 cell battery 2x750gb hdd I would be in dreamland.

 

Even in the previous generation MacBook Pros there was basically nothing the 17'' had that the 15'' didn't have or couldn't be configured with. The 17'' MBP didn't have a numpad or a potentially higher screen resolution so all you were carrying around was extra weight. Which explains why the 17'' didn't sell well and hence Apple's decision to discontinue it.

Now that the even more energy-efficient Kepler and Ivy Bridge parts are out, there's even less reason to continue producing a 17'' model if you can already fit all the high-end parts in a 15'' chassis.

 

17" just feel more right for me as a form factor so thats why i usually go with it.
But i can see why Apple discontinued it if they just kept the 15" keyboard on it like they do on the 17" Clevo's.

 

Well, 17" screens are nice.. even if they are the same resolution.

Given how light macbooks are, I don't think anyone is going to notice an extra pound.

Some better cooling would be nice... (so it doesn't start cooking your lap after 10 minutes of video)

How about abandon "ultralight" altogether for the 17" and make a real professional laptop with a quadro or AMD GPU and 1080p matte screen?

 

I actually found this pretty interesting, if only apple made a larger psu for their 15'', 85w is just too low

 

Hey lancer, are you using stock BIOS or the vBIOS mod for the m14x r2? If not, how did you get a boost clock of 200 mhz??

 

Apologies but the temperatures given on the review were rather inappropriate. I have yet to see a proper full load test on a MBP R.
Half life 2 would have barely gotten 20% cpu, and maybe what? 30% GPU usage? For that, the CPU/GPU got upwards to 75c/69c respectively, at what I considering to be low to medium (about 20%-30%).
I think this sums up the review as far as thermals go:

 

@Feels - vbios mod for m14xr2. I can run at 1070/2300 now. No issues.

 

I sadly have the np6165 gddr5 650m, so no modded bios for it yet. Know how I can help someone do that? or help someone who can tell me how to do it?

 

Only applies if you cap the frame rate. With the frame rate uncapped, hardware utilization should be much higher.

 

Fair point, however I dont ever recall my M6500 hitting 100%/100% while playing Half life 2 (no vsync, I always turn it off).

Also some processes just flat out stress cpu's or gpu's more, even if it shows 100% usage.

 

Apple's 650M appears to drop down to 750MHZ when the real gaming starts (tax the GPU to 100% as well as heavily loading the CPU), so really its only momentarily better than the rest of the 650Ms in the wild. Unlike the CPU, which I can control with Throttlestop, no changes to the GPU via nvidia inspector or msi afterburner is able to prevent the GPU throttle. Nhibitor also cannot access the GPU's functions, so that's not viable either.

Shared heatpipes; either the CPU or the GPU can go full blast, but not at the same time. Hopefully the story changes for me once I re-paste.

 

retina or the mbp?

on the retina I havent see this at all.

 

Base model retina with throttlestop multplier set to 23.

 

could you post some pics? I never saw a rmbp do that