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Ichill 770 vs 780

RusstheDroog

RusstheDroog

RusstheDroog

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14 Jan 2014
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220
Looking for SLI Cards for a 4K set up but putting that to one side, I cannot for the life of me figure out which card would be better?

Take a peak at the OC ichill 770 4GB version spec:
http://www.overclockers.co.uk/showproduct.php?prodid=GX-030-IN&groupid=701&catid=1914&subcat=1750

Then take a look at the 780 spec
http://www.overclockers.co.uk/showproduct.php?prodid=GX-014-IN&groupid=701&catid=1914&subcat=1341

So can anyone please tell me (perhaps i'm missing something really obvious) why it appears the 770 has a 'higher' spec than the 780...

The 770 outperforms (on paper) the 780 in most aspects except stream processors.

Any one clarify?
 
770:
Core: 1150MHz, Memory: 4096MB 7200MHz GDDR5, Stream Processors: 1536, Shader Clock: 2300MHz, SLI Ready, PhysX/CUDA Enabled, 3 Years Warranty.

780:
Core: 1006MHz, Memory: 3072MB 6212MHz GDDR5, Stream Processors: 2304, Shader Clock: 2012MHz, SLI Ready, PhysX/CUDA Enabled, 3 Years Warranty.

This is what makes the difference biggest difference,
also the:
GDDR5 on the 780 - Memory Bus 384-bit
GDDR5 on the 770 - Memory Bus 256-bit
 
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Drangueos said:
770:
Core: 1150MHz, Memory: 4096MB 7200MHz GDDR5, Stream Processors: 1536, Shader Clock: 2300MHz, SLI Ready, PhysX/CUDA Enabled, 3 Years Warranty.

780:
Core: 1006MHz, Memory: 3072MB 6212MHz GDDR5, Stream Processors: 2304, Shader Clock: 2012MHz, SLI Ready, PhysX/CUDA Enabled, 3 Years Warranty.

This is what makes the difference big difference.
Click to expand...
You forgot this part:
770:
Memory: 4096MB 7200MHz GDDR5 + Memory Interface: 256-Bit= (Memory bandwidth (230Gb/s)

780:
Memory: 3072MB 6212MHz GDDR5 + Memory Interface: 384-Bit= (Memory bandwidth (298Gb/s)

:p
 
I would go for 780s, but EVGA SC instead or Classy.
You will pay the same and you are covered for watercooling.
And it overclocks like a dream (my 780s are quite high in benches :D ).
 
3Gb@4k forward planning isn't enough.

770 4Gb neutered 256bus isn't quick enough either@4k due to bandwith constraints.

8 series is arriving soon, will probably have 4K performance comparison figures.
 
Marine-RX179 said:
You forgot this part:
770:
Memory: 4096MB 7200MHz GDDR5 + Memory Interface: 256-Bit= (Memory bandwidth (230Gb/s)

780:
Memory: 3072MB 6212MHz GDDR5 + Memory Interface: 384-Bit= (Memory bandwidth (298Gb/s)

:p
Click to expand...

Not to be nerdy, but the Gb/s is actually throughput, the bandwidth is the memory interface bits.
 
ubersonic said:
Not to be nerdy, but the Gb/s is actually throughput, the bandwidth is the memory interface bits.
Click to expand...
So I am reading GPU-Z information wrong then?
http://www.techpowerup.com/gpuz/

Cause the 256-bit/384-bit looks to me are the "Bus Width/Memory bus", and the GB/s is the "Memory Bandwidth" :confused:

http://www.techradar.com/reviews/pc...amd-radeon-hd-7970-ghz-edition-1086601/review
"Thanks to AMD's faster 384-bit memory bus though the Radeon HD 7970 GHz Edition has a massive 288GB/s memory bandwidth compared with the 192GB/s of the top single-GPU Nvidia card. That means at the higher end of the resolution spectrum the AMD card now seriously has the edge."
 
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It's one of those things where people have started using the words wrong so much that even the company's that make the products have joined in so it's easier for consumers to understand, another good example is IDE vs SATA, in reality its PATA vs SATA because IDE is the controller not the interface, SATA and PATA drives are both IDE.

Throughput is a combination of bandwidth and speed, in this case bus width and memory MHz, or on a motorway the traffic throughput would be a combination of lanes and vehicle speed.
 
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Dodgy time to be buying two 780's in my opinion. You might be crying into your wallet come September :p
 
Cheers for all of the input. I had guessed stream processors would make the difference but it was surprisingly hard to find benchmark info comparing the two.

To be honest budget isn't the biggest issue, so I doubt I'll be crying in to my wallet. Still no one wants to spend money unnecessarily so I'll consider waiting a bit. I'd considered the IChill as I was making the best of a bad situation and I'm not overly interested in EVGA. Again, if I was looking at them it'd be looking at £70 more for the card, so £140 in SLI and that being the case I'd probably consider a 780Ti and forget the 4k for the moment, with a view to SLI down the line.

Annoyingly there was a plethora of 6GB cards only a week or two ago and they seem to have disappeared. I was eyeing up the 6GB KFA2 HOF which was the same price as the 3GB but they're long gone and OCUK have assured me they are not getting any more in.

Lastly I won't be considering AMD as I've bought a GSYNC monitor for use with the GTXs.
 
Yeah I had considered it but in the benchmarks I had seen 2x 780s smashed the Titans.

I wouldn't go as far to say money is no object either ha... I'd cap it at about £800 for my own sanity. Certainly not considering Titan Z levels of expenditure. I'd be strung up by the better half for one.
 
i have 4 gig 770 even if its clocked it is still behind 780 , you would need two 4 gig 770 for 4k .

you can buy 780 6 gig now for 4k , or wait for 870 / 880 gtx that should come somewhere in this autumn or this years winter.
 
ubersonic said:
It's one of those things where people have started using the words wrong so much that even the company's that make the products have joined in so it's easier for consumers to understand, another good example is IDE vs SATA, in reality its PATA vs SATA because IDE is the controller not the interface, SATA and PATA drives are both IDE.

Throughput is a combination of bandwidth and speed, in this case bus width and memory MHz, or on a motorway the traffic throughput would be a combination of lanes and vehicle speed.
Click to expand...

Yeah but bus width is not bandwidth.

bandwidth would be correct IMO. Like Gigabit ethernet, you would say 1 Gbit/s is the bandwidth.
 
ubersonic said:
Not to be nerdy, but the Gb/s is actually throughput, the bandwidth is the memory interface bits.
Click to expand...

+1

If you compare a 384bit bus to a 512bit bus running @4K even if they have the same throughput the 512bit bus is better and you get better fps.

At lower resolutions it does not matter so much and it is more about throughput.
 
Kaapstad said:
+1

If you compare a 384bit bus to a 512bit bus running @4K even if they have the same throughput the 512bit bus is better and you get better fps.

At lower resolutions it does not matter so much and it is more about throughput.
Click to expand...

You sure about that? I would have thought they would be the same.
Suppose there isn't really a way to test it though.
 
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