GTX 660M vs Desktop Cards

[joshhedge]

Hi all,

As the title says, I'm looking to find out how the GTX 660M compares to current desktop GPUs. I'm buying a Retina Pro for uni ( Yes it has a GT 650M but it's clocked at GTX 660M frequencies. ) and I'd like to see what desktop cards these mobile 28nm Keplar GPUs compare to for gaming such as CIV5, L4D2, TF2 and StarCraft 2 along with compute such as video encoding, CAD rendering and maths equations.

So far I've been unable to find any direct comparisons online, hence I'm asking here. I will be going for the 2.6GHz i7-3720QM with 16GB RAM.

Thanks!

 

[tviceman]

Hi all,

As the title says, I'm looking to find out how the GTX 660M compares to current desktop GPUs. I'm buying a Retina Pro for uni ( Yes it has a GT 650M but it's clocked at GTX 660M frequencies. ) and I'd like to see what desktop cards these mobile 28nm Keplar GPUs compare to for gaming such as CIV5, L4D2, TF2 and StarCraft 2 along with compute such as video encoding, CAD rendering and maths equations.

So far I've been unable to find any direct comparisons online, hence I'm asking here. I will be going for the 2.6GHz i7-3720QM with 16GB RAM.

Thanks!

It should perform about as fast a a desktop gtx550ti so long as anti-aliasing isn't enabled. If anti-aliasing is enabled it's performance will be notably slower because of the lesser memory bandwidth.

 

[hyrule4927]

Looks like it is roughly comparable to a GTS450. A decent card, but you are going to have to really cut down your graphical settings if you want playable frame rates at native resolution. Plus 1GB VRAM cripples it at that resolution.

As for compute, I only have experience with Autodesk, which does not seem to utilize gaming GPU's at all. If that's what you will use your CPU should handle it just fine though, as long as you don't enable ray tracing.

 

[joshhedge]

GDDR5 Vram... I don't understand why it would have less memory bandwidth? I think the bus is larger or the same size. I'm on my mobile otherwise I'd confirm. Alongside this the Vram frequency is clocked higher in the 6xx series compared to the 5xx series.

 

[hyrule4927]

GDDR5 Vram... I don't understand why it would have less memory bandwidth? I think the bus is larger or the same size. I'm on my mobile otherwise I'd confirm. Alongside this the Vram frequency is clocked higher in the 6xx series compared to the 5xx series.

It has a 128 bit memory bus, comparable desktop cards have a 192 bit bus.

 

[Crap Daddy]

Is it with DDR3 or GDDR5? I think the 650M has the DDR3 even if it's clocked as the 660M it will give lesser performance

here you have performance in games for the 660M:

http://www.notebookcheck.net/NVIDIA-GeForce-GTX-660M.71859.0.html

Medium-high on more demanding games.

 

[joshhedge]

Is it with DDR3 or GDDR5? I think the 650M has the DDR3 even if it's clocked as the 660M it will give lesser performance

here you have performance in games for the 660M:

http://www.notebookcheck.net/NVIDIA-GeForce-GTX-660M.71859.0.html

Medium-high on more demanding games.

I know for a fact Apple uses GDDR5

Thanks for the advice guys. I think at 'retina' resolution I wouldn't use AA, I wish Apple used 2GB of VRAM. Shame about Autodesk not using the GPU, one of the main reasons for choosing the higher clocked CPU.

 

[Arkadrel]

As the title says, I'm looking to find out how the GTX 660M compares to current desktop GPUs.

660M: Kepler architecture

384:32:16

835mhz Core
835mhz shader
4000mhz memory


The answear is..... a Nvidia 640 (non mobile) part.

The 640 also has "384:32:16" confiq, same arch, and slightly faster core clocks.

So a GTX 660M is probably gonna benchmark like a 640 (non mobile).

Im guessing slightly lower resolution, and you can probably get respectable frame rates while playing CIV V.

 

[sontin]

The 660m is as fast as the GTS450.

 

[joshhedge]

Arkadral, the rPro 650M is clocked at 900MHz core clock along with higher memory frequencies, thus it should perform better than that. Once I get it later this month I'll have to do some proper testing. Thanks again for the input guys!

 

[Crap Daddy]

So a GTX 660M is probably gonna benchmark like a 640 (non mobile).

660M has GDDR5 while that GT640 is with DDR3 so it's a bit faster, I'd say between a 5750 and a GTS450.