GTX295 beaten by 2xHD4890 CFx - -BIG TIME

[topgear]

HD4890 has 3 million transistors more than HD4870.
And with Core Clock of 950MHz and Memory Clock of 1100MHz(4400MHz effective), the card beats the HD4870 by a wide 15-25% margin.

Wrong. HD 4890 has core clock of 850 Mhz & Mem clock of 975 Mhz with 1GB of 256 bit GDDR5 mem.

*www.tomshardware.com/reviews/geforce-gtx-275,2266-2.html

Benchmark results of HD4890 & GTX 275
*www.tomshardware.com/reviews/geforce-gtx-275,2266.html
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With DX11, most interesting would be 7GHz GDDR5 with a 512-bit memory interface.

:drools:

7GHZ GDDR5 Mem. It would be exorbitantly priced coz even a gfx card with 448 bit GDD3 mem is too costly.

 

[comp@ddict]

Wrong. HD 4890 has core clock of 850 Mhz & Mem clock of 975 Mhz with 1GB of 256 bit GDDR5 mem.

Arrey that I know, I'm saying that these speeds are safe an easy OC with this card, such that a person can run it at this speed.

Default clocks pata hai.

 

[amitash]

a 2xgtx275 comparison would be more accurate...and the GTX295 is NOT 2xgtx275 in sli...its a hybrid between 280 and 260...and if you factor in the nearly 400W power consumption of 2x4890 and only 280W of the 295 and the cost of a crossfirex full x16 mobo + the powersupply + Nvidia's great driver support + physX + CUDA...A single card setup is still the way to go...Try comparing 2x4890 to 2xgtx285.

You have also failed to include the other 4 benchmarks where the 295 wins...also the power consumption graph.

 

[comp@ddict]

its a hybrid between 280 and 260

What do you think a GTX275 is, wait, I'll show you:-

GTX285
240 Shaders
512-bit memory interface
1GB GDDR3 Memory

GTX260
216 Shaders
448-bit memory interface
896MB GDDR3 Memory

The new GTX275
240 Shaders - Like GTX285
448-bit memory interface - Like GTX260
896MB GDDR3 Memory - Like GTX260

And there are texture units too, which is the same as GTX285, and more than GTX260.


Now let's see a GTX295
2 x 240 Shaders - 2 x GTX275
2 x 448-bit memory interface - 2 x GTX275
2 x 896MB GDDR3 Memory - 2 x GTX275

Is that enough?

I know the power consumption is bad, and dun talk about Physx, the only game which makes Physx worthy of consideration is Mirror's Edge, none other.

 

[j1n M@tt]

^^+1

GTX295 is 2xGTX275, and btw Physx and CUDA is almost non-existent. ATI's Havok is going to be used in most up coming games.

 

[comp@ddict]

ATI's Havok is going to be used in most up coming games.

Absolutely, although AMD doesn't go trumpeting of it's Havok, it already supports 100 games, and 100 more are on the way.

 

[amitash]

btw Physx and CUDA is almost non-existent. ATI's Havok is going to be used in most up coming games.

Physx and CUDA are new, and they are becoming better and better...Mirrors edge was the first release, you will see more in the future....And where are the 100 games that support havok? Im yet to see even one game that supports it...With amd's current drivers and lower cfx scalability than SLI, i dont see a more powerfull 4890

And FYI no they are NOT the same...They are very similar but NOT the same, their speeds differ...here:

2xgtx275 = 633mhz gpu clock, 1404mhz shader clock, 2322Mhz mem clock
gtx295 = 576mhz gpu clock, 1242mhz shader clock, 2000mhz mem clock

So 2xgtx275 IS going to be faster than gtx295 by some margin and it mostly will beat 2x4890 as a single gtx275 already pwns a single 4890.

 

[nvidia]

^^PhysX and CUDA are older than Havok right?.

 

[j1n M@tt]

^^ya..I think PhysX manufactured cards many years before it was brought by nVidia.

 

[nvidia]

^Yeah.. Lots of games supported Ageia PhysX cards but they were barely useful..

And btw, Havok is not an ATi only thing AFAIK. And i think Intel has acquired Havok already.. ATi just supports the technology.. Maybe its open or something..

 

[j1n M@tt]

ya its something like dat...and Intel hav something to do with it

 

[comp@ddict]

. And i think Intel has acquired Havok already

U're right about that.

2xgtx275 = 633mhz gpu clock, 1404mhz shader clock, 2322Mhz mem clock
gtx295 = 576mhz gpu clock, 1242mhz shader clock, 2000mhz mem clock

Yeah, if u take clock speeds into consideration, yes, GTX295 does have a chance, if it is build with 2xGTX275 with the new clocks.

 

[amitash]

Yeah, if u take clock speeds into consideration, yes, GTX295 does have a chance, if it is build with 2xGTX275 with the new clocks.

FYI thats one of the main things you have to consider...I never argued that the 295 was better, it was never meant to compete with anything higher than 4870x2, just wanted to say that 2xgtx275 will be better than 2x4890 so nvidia's still on top...besides, If you want to consider 2xgpu performance, nvidia will always be on top as nothing beats the gtx285 sli.

 

[dOm1naTOr]

Havok is older than Physx. Remember the old game painkiller around 6 yrs ago. It used havok 1 engine. Physics bacame dominant with games like GRAW1 when they were producing dedicated Physicx hardwares.

Then nvidia bought the company and began to emulate physics in all PCs with geforce8 or above cards. Actually the s/w was made as if to run only on systems with 8 or above nvidia cards.
8 series cards were designed and started production before nvidia attained Ageia.

 

[comp@ddict]

gtx285 sli.

Yes, but that's another thing cuz of the prices:-
-GTX295 = 499$
-HD4870 X2 = 399$

-GTX285 = 349$
-2 x GTX285 = 699$
-HD4850 X2 = 269$

-GTX275 = 249$
-2 x GTX275 = 499$

-HD4890 = 199$(Sapphire already!)
-2 x HD4890 = 399$

Now compare the 399$ HD4890 X2 with 499$ GTX275 X2.
Performance wise, GTX275 X2 wins, price-performance ration wise, it's HD4890 X2.

 

[topgear]

@ comp@ddict - Nice calculation Yeah, price/performance rartio wise 2x HD4890 is the best you can get thing as of now.

 

[comp@ddict]

Can't wait to see 2xGTX275 SLi performance.

 

[nvidia]

I think it will be better than 4890 CF

 

[amitash]

-HD4890 = 199$(Sapphire already!)

Link please...I dont see a 199$ saph 4890 anywhere....ATi have to be crazy to make it that cheap....Even gtx260 core 216 is 220$...In all the sites i have searched, its 250$ or 260$, same as gtx275.

 

[nvidia]

^^If thats the case, then 295 is a better buy IMO