ATi Radeon 4890 Discussion

[SSChevy2001]

Originally posted by: Comdrpopnfresh
so if someone has a 4870 1gb, and can overclock it to 850mhz, is that equivalent?

Here's my Vantage score on my 4870 1GB running 4890 clocks.
http://img9.imageshack.us/img9/4673/4870vantage.jpg

Here's the Vantage score with a 4890.
http://www.ocheaven.com/news_view.asp?gid=6754

Comparing the 2 it looks like the 4890 is just an OCed 4870 performance-wise, but I guess we'll have to wait and see when more review come out.

 

[mhouck]

Originally posted by: SSChevy2001

Originally posted by: Comdrpopnfresh
so if someone has a 4870 1gb, and can overclock it to 850mhz, is that equivalent?

Here's my Vantage score on my 4870 1GB running 4890 clocks.
http://img9.imageshack.us/img9/4673/4870vantage.jpg

Here's the Vantage score with a 4890.
http://www.ocheaven.com/news_view.asp?gid=6754

Comparing the 2 it looks like the 4890 is just and OCed 4870 performance-wise, but I guess we'll have to wait and see when more review come out.

In all fairness, the 4890 is being run on beta drivers right now. Now that the specs are confirmed and the launch date confirmed, just like you said, we have to wait for the real drivers and comprehensive reviews.

April 9th

 

[dguy6789]

There may be minor changes in the core, but I seriously doubt they are performance related changes. They are most likely only changes that allow it to clock higher.

 

[SSChevy2001]

Here's more info and more benchmarks on the 4890 1GB.
http://www.ocheaven.com/news_view.asp?gid=8362

GPUz is only showing 800SP. Also the GPU memio temp looks more inline with the other GPU temps unlike my 4870.

 

[SunnyD]

Originally posted by: SSChevy2001
Here's more info and more benchmarks on the 4890 1GB.
http://www.ocheaven.com/news_view.asp?gid=8362

GPUz is only showing 800SP. Also the GPU memio temp looks more inline with the other GPU temps unlike my 4870.

2 things to keep in mind -

1st: GPU-Z can only report what's in it's database, what the driver exposes or what hardware monitoring exposes.

2nd: Remember when the 4830 came out, review samples and the first lot of production boards had the BIOSes incorrectly set disabling a block of shaders. (Insert innuendo here)

 

[bryanW1995]

Originally posted by: SSChevy2001

Originally posted by: Comdrpopnfresh
so if someone has a 4870 1gb, and can overclock it to 850mhz, is that equivalent?

Here's my Vantage score on my 4870 1GB running 4890 clocks.
http://img9.imageshack.us/img9/4673/4870vantage.jpg

Here's the Vantage score with a 4890.
http://www.ocheaven.com/news_view.asp?gid=6754

Comparing the 2 it looks like the 4890 is just an OCed 4870 performance-wise, but I guess we'll have to wait and see when more review come out.

I've never used pc mark vantage. does it matter that their cpu was at 2.67 ghz and yours is at 3.45?

 

[ronnn]

Originally posted by: mhouck

In all fairness, the 4890 is being run on beta drivers right now. Now that the specs are confirmed and the launch date confirmed, just like you said, we have to wait for the real drivers and comprehensive reviews.

April 9th

Besides enjoying fud and confirmed in the same sentence - I do agree, surprisingly little known for sure about this card. Especially when we are seeing pictures of final versions - boxes and all.

 

[SSChevy2001]

Originally posted by: bryanW1995
I've never used pc mark vantage. does it matter that their cpu was at 2.67 ghz and yours is at 3.45?

I don't use it much also. Their CPU is more than likely faster than mine even at those speeds, just look at the CPU score. Besides in their updated page they score a GPU scored of 10256, which is just about equal to my 10202.

 

[error8]

You are all expecting way too much from this card and there are very slim chances that it will have more shaders, ROPs or anything more besides higher clocks. If the card is made to fit in between gtx 285 and gtx c216/4870 1gb, then there is absolutely no reason for ATi to engineer a new gpu. Why spend so much money for just a 10 % more performance?

 

[mhouck]

Originally posted by: ronnn

Originally posted by: mhouck

In all fairness, the 4890 is being run on beta drivers right now. Now that the specs are confirmed and the launch date confirmed, just like you said, we have to wait for the real drivers and comprehensive reviews.

April 9th

Besides enjoying fud and confirmed in the same sentence - I do agree, surprisingly little known for sure about this card. Especially when we are seeing pictures of final versions - boxes and all.

Even a blind squirrel finds a nut every now and then

 

[error8]

http://www.techpowerup.com/889..._4890_Accelerator.html

100% digital PWM design - something the reference PCB features too, but enhanced by a small design change by ASUS
The 6+2 phase power circuit is controlled by two independent VRM controller chips, the vGPU can be controlled by software, and can be set up to 1.4 V with the included software
An 8-pin PCI-E power input replaces one of two 6-pin inputs on the reference model. This is said to add electrical stability and increase overclocking headroom
ASUS added the industry's highest-quality voltage regulation thanks to the Fujitsu high-density ML capacitor, that facilitates the lowest ESR, and is best suited for digital PWM circuits (the cleanest power makes it to the GPU)
The GPU is expected to be clocked above 900 MHz, with the GDDR5 memory at 1000 MHz (4.00 GHz effective)
It will feature a non-reference high-performance cooler, which doesn't want to be pictured yet

This might be an interesting card if it's going to come out this way. Might be very close to gtx 285.




Topic "Asus 4890 non reference".

Merged into main thread.

Video Mod BFG10K.

 

[SlowSpyder]

I just saw the Asus Matrix 4870 for sale recently (I hadn't heard of them until recently). I hope they make a 4890 with the same features. It seems like their 'Matrix' cards really are top of the line in every way.

 

[MrK6]

900MHz+ on air is pretty darn godlike; looks like all their revisions paid off. I'd be interested to see what kind of overclocks are achievable on water. If reviews are good (especially in CrossFire), I might switch

 

[thilanliyan]

I seriously doubt this will challenge a GTX285...maybe in some games but overall I doubt it will match up unless the shaders are more efficient (which is rumoured but I don't have the technical knowledge to know how much of an effect it will have).

If this is consistently ~20% faster than a 4870 that would be impressive.

 

[josh6079]

Originally posted by: MrK6
If reviews are good (especially in CrossFire), I might switch

From a GTX 295?

 

[thilanliyan]

Originally posted by: josh6079

Originally posted by: MrK6
If reviews are good (especially in CrossFire), I might switch

From a GTX 295?

Maybe 2 of them?

 

[error8]

Originally posted by: thilan29

Originally posted by: josh6079

Originally posted by: MrK6
If reviews are good (especially in CrossFire), I might switch

From a GTX 295?

Maybe 2 of them?

Even two of them will probably add just a slight improvement, that if it adds anything at all. There is no need for this "upgrade".

 

[yh125d]

Originally posted by: error8

Originally posted by: thilan29

Originally posted by: josh6079

Originally posted by: MrK6
If reviews are good (especially in CrossFire), I might switch

From a GTX 295?

Maybe 2 of them?

Even two of them will probably add just a slight improvement, that if it adds anything at all. There is no need for this "upgrade".

A very smart man once said, "It is the fool who looks for logic in the heart of a techie"


ok so I paraphrased, but you get the point

 

[dguy6789]

Originally posted by: thilan29
I seriously doubt this will challenge a GTX285...maybe in some games but overall I doubt it will match up unless the shaders are more efficient (which is rumoured but I don't have the technical knowledge to know how much of an effect it will have).

If this is consistently ~20% faster than a 4870 that would be impressive.

I disagree. 900Mhz core clock should be enough to meet or beat it.

 

[error8]

Originally posted by: yh125d



A very smart man once said, "It is the fool who looks for logic in the heart of a techie"


ok so I paraphrased, but you get the point

Yes, but there is also the "It is the fool, that throws money on the window"

 

[Jacen]

This could be an interesting card. I don't know if I can handle the idle noise of the 4850x2 in one of my rigs. Plus those Matrix coolers are awesome, hopefully this is in that line up.

 

[Tempered81]

here it is running at 1ghz

http://www.hardware-infos.com/...tartseite/hd4890_3.jpg

In precision the HD 4890 could be run with 1000/1125 MHz instead of 850/975 MHz and reached an immense 3DMark Vantage score of X5480 points. The 18 per cent frequency increase in the chip and the 15 per cent increase in the memory was accomplished by the usual air cooling, while it was clearly visible with the driver menu that it rotated at full speed in 3D mode.
The 3DMark Vantage-Score lays between GTX 280 and GTX 285 - an accurate comparison is difficult, because the CPU performance is also involved in the result.

Already a few days ago we learned, that first HD 4890 cards would be followed by strongly overclocked ones in the weeks after. Thereby clock rates of 950 MHz and more for the chip and up to 1200 MHz for the memory were mentioned.

Independent from our information and the 3DMark result from PC Inlife, the announcement of an overlocked HD 4890 from Asus appeared on techPowerUp!. Precise clock rates were given 900/1000 MHz. A conspicuous thing was the use of the eight-pole plug, which foreshadows a TDP between 225 and 300 watt.

http://www.hardware-infos.com/...hp?news=2827&sprache=1

 

[bryanW1995]

or, as steve wozniak once said, "never trust a computer that you can't throw out a window".

 

[thilanliyan]

Originally posted by: dguy6789

Originally posted by: thilan29
I seriously doubt this will challenge a GTX285...maybe in some games but overall I doubt it will match up unless the shaders are more efficient (which is rumoured but I don't have the technical knowledge to know how much of an effect it will have).

If this is consistently ~20% faster than a 4870 that would be impressive.

I disagree. 900Mhz core clock should be enough to meet or beat it.

About how much on average is the 4870 1GB behind the GTX 285?

 

[SSChevy2001]

Originally posted by: thilan29

About how much on average is the 4870 1GB behind the GTX 285?

Well using the Anandtech MultiGPU reviews

25x16

Title = 4870 1GB vs GTX285
Age of Conan 26 vs 24 = 108.3%
COD WaW 33.2 vs 52.2 = 63.6%
Crysis Warhead 18 vs 22.4 = 80.4%
Fallout 3 41.3 vs 41.2 = 100.2%
FarCry 2 25.4 vs 30.8 = 82.5%
Left 4 Dead 46.9 vs 63.2 = 74.2%
Racer Driver GRID 51.2 vs 52.1 = 98.3%

607.5 / 7 = 86.8% the speed of the GTX285

865Mhz should break even.

19x12

Title = 4870 1GB vs GTX285
Age of Conan 35.9 vs 35.7 = 100.6%
COD WaW 50.2 vs 59.8 = 83.9%
Crysis Warhead 27.9 vs 32.8 = 85.1%
Fallout 3 52.1 vs 48.3 = 107.9%
FarCry 2 35.5 vs 38.5 = 92.2%
Left 4 Dead 74 vs 81.2 = 91.1%
Race Driver GRID 73.5 vs 72.6 = 101.2%

662 / 7 = 94.6% the speed of the GTX285

16x10

Title = 4870 1GB vs GTX285
Age of Conan 39.5 vs 38.6 = 100.2%
COD WaW 61 vs 62.8 = 97.1%
Crysis Warhead 33.3 vs 38.5 = 86.5%
Fallout 3 55.5 vs 52.1 = 106.5%
FarCry 2 37.8 vs 41.2 = 91.7%
Left 4 Dead 87.4 vs 86.7 = 100.8%
Race Driver GRID 83.6 vs 77.8 = 107.5%

690.3 / 7 = 98.6% the speed of the GTX285

IMO 900Mhz should be enough to run against a stock GTX285.