Hilo Oficial :::. AMD Radeon 6000 series (REVIEWS)

[Solidus J2K]

6970 $370
http://www.newegg.com/Product/Produc...d+6970&x=0&y=0

6950 $300
http://www.newegg.com/Product/Produc...d+6950&x=0&y=0

[Ryoma-Echizen]

Tu lo has puesto, babas, babas. Un CF de 6950 por poco más de lo que sale una 580 y 40%+ rendimiento que una 5970 xD.

Epic win.

¿Se han dado cuenta que el stock de GTX570/580 en especial del último ha sido casi fantasmal? Ya de por sí por el precio de una 580 "encontrar y comprar" una no algo difícil pero la realidad es que eran bien poquitas.

AMD ha hecho un lanzamiento masivo en toda la extensión de la palabra.


La 6950 nos estaría llegando por poco más de lo que nos salía una 5850. Ya le pondrán su inflada por la novedad.


Un buen día para el quiera eyefinity/3d.

[Solidus J2K]

HD 6900 PDF


Esperen sus precios en lima:

HD6950 = $390 aprox. ideal ($391.88 con Anson)
HD6970 = $470 aprox. ideal ($467.48 con Anson)

GTX570 = $462 en Deltron - Tal vez $480-$490 aprox. en Wilson ($445.88 con Anson)

[Migoffs]

solo esto:
Radeon Rulez !

[Solidus J2K]

HD6900 REVIEWS:

http://vr-zone.com/articles/amd-rade...w/10474-1.html

[Solidus J2K]

TEMPERATURA



POWERTUNE

According to AMD, AMD PowerTune technology helps enable higher performance that is optimized to the thermal limits of the GPU by dynamically adjusting the engine clock during runtime based on an internally calculated GPU power assessment. AMD PowerTune technology also helps to improve the mechanism to deal with applications that would otherwise exceed the GPU's TDP. By dynamically managing the engine clock speeds based on calculations which determine the proximity of the GPU to its TDP limit, AMD PowerTune allows for the GPU to run within its TDP budget at higher nominal clock speeds than otherwise possible.
AMD PowerTune technology can be directly adjusted by the user using the AMD Catalyst Control Center AMD Overdrive tab. AMD PowerTune can be tweaked to allow for a more aggressive power containment (and therefore more aggressively limit power and heat) or be used by enthusiasts to relax the enforcement of factory thermal constraints on their AMD Radeon HD 6900 Series graphics card for more performance.





HD 6970 and HD 6950: PowerTune set to +20%.
GTX 580 and GTX 570: OCP completely lifted via GPU-Z

OVERCLOCK:

To overclock the AMD Radeon HD 6970 and Radeon HD 6950 cards, we used MSI's Afterburner overclocking utility. We consider the overclock to be sufficiently stable only if the card can complete our few benchmark tests at one go.

Radeon HD 6970 overclocking
Given its default frequency of 880MHz core, it is likely that the Radeon HD 6970 was given a last-minute speed bump in order to edge out the GeForce GTX 570 in some tests. Thus, there is less headroom left for overclocking without any VGPU adjustments. With some effort, we managed to coax the Radeon HD 6970 to 950MHz core and 1450MHz (5800MHz effective) memory; that is a modest increase of 70MHz to the core and 75MHz to the memory.

Radeon HD 6950 overclocking
Using 'defective' silicon (die harvesting), the Radeon HD 6950 still managed a 115MHz core overclock to 915MHz, while memory overclock is similar to the HD 6970 at 1450MHz (5800MHz effective).

As the cards are voltage limited (no VGPU adjustments made), a fan speed setting of 65% on both cards was sufficient to keep temperatures below 80°C (and also to prevent us from going deaf).

[Solidus J2K]

[LeonH]

Y por si aun les queda alguna duda:

TweakTown HD6970
TweakTown HD6950
TechPowerUp
Hardware Canucks
Hexus
PC Perspective
T-Break
Guru3D
AnandTech
Hardware Zone
HotHardware
Hartware.net (German)
Modders-Inc
Hardware Heaven
eTeknix
Overclockers.com
HardOCP
VR-Zone
PureOverclock

[Solidus J2K]

AMD Radeon HD 6950 to HD 6970 Mod

http://www.techpowerup.com/articles/...ng/vidcard/159

Introduction

A few weeks ago AMD released the Radeon HD 6970 and Radeon HD 6950. Both cards are based on AMD's new Cayman core which is their first graphics processor to use a VLIW4 shader configuration.

Just like on all other similar products, AMD's two Cayman variants, called Cayman Pro and Cayman XT, are based on the exact same GPU silicon. The model variant a GPU chip becomes is decided after the die is produced, at some point before it is put on the card.

The picture above shows the disabled HD 6950 shaders in red. When unlocked, these deactivated units become active, resulting in a substantial performance increase.

AMD has two methods of locking the shader count on all of their recent GPUs. The first one relies on fuses inside the GPU, or on the substrate - a mechanism similar to Intel's multiplier locking. It is not reversible as far as we know. The second mechanism is the one we are interested in, AMD can configure the VGA BIOS in a way that it disables extra shaders, in addition to the ones disabled via the on-die fuses. This method is mostly used to create engineering samples or reviewer cards that match the target specifications. Usually production cards come with the shader count configured in the fuses, so that it can not be changed.

Apparently currently shipping Radeon HD 6950 cards from all manufacturers - which actually are all the same card with different sticker - have their shaders locked via the BIOS method, so we can exploit it easily.

Unlocking the shaders




Unlocking the additional shaders is done by flashing the card with a HD 6970 BIOS. You can find a few in our VGA BIOS collection. Any of these BIOSes will work on any reference design HD 6950 card. You could use the ASUS BIOS which comes with higher clocks & Overdrive limits and enables voltage changes via SmartDoctor, or stick with one of the reference BIOSes in case you are afraid the clocks might be too high.

I will describe the method for flashing from within Windows, which is safe enough on these cards because of the dual BIOS feature that enables easy recovery.

1. Grab ATI Winflash from here.
2. Download HD 6970 BIOS.
3. Make sure the BIOS switch on the card is set to the 1 position.
4. Run ATI Winflash, click Save to save your BIOS, so you have a backup in case something goes wrong.
5. Load the HD 6970 BIOS into Winflash by clicking Load Image, followed by Program.
6. Let the flashing process complete and reboot your system.
7. Check the shader count using GPU-Z, it should show 1536.
8. Check stability in Windows desktop applications and games.

If you get an error like ID mismatch or Could not erase ROM, then you'll have to do some extra work in a command prompt: Run atiwinflash -unlockrom 0atiwinflash -f -p 0 bios.bin where bios.bin is the path and filename of the HD 6970 BIOS you downloaded.
followed by
Testing



We can see that enabling the shaders without any clock increases improves performance. Once the clock speeds are adjusted to match the HD 6970, the card effectively performs just as well as a full blown Radeon HD 6970.

What if something goes wrong?

So you flashed the BIOS and your card doesn't work for one reason or the other?
If your card boots fine but does not work reliably in 3D, you can just boot the card and flash back the original BIOS of your card (that's why you should always save your BIOS before doing any flashing experiments.



In case your card does not boot at all you can use AMD's new backup BIOS feature:

1. Set the BIOS switch (pictured above) in the 2 position to enable the recovery BIOS. This will let you boot the card without problems.
2. Boot into Windows/DOS prompt and get ready to flash the card - do not start the flashing process just yet.
3. Set the BIOS switch in the 1 position with the system running and ready to flash.
4. Flash your saved BIOS to the card.
5. Reboot, done.

Ahora si creo que me voy por la HD6950 si no pasa de los $400.

OJO solamente es con el HD6950, con el HD6850 no surte efecto si le aplicas la Bios de la HD6870, solamente aumentan los clocks y el límite en el CCC tal como sucedía cuando a un HD5850 le aplicabas la Bios de una HD5870.
Además lo bueno de esto en esta serie es que si la friegas puedes restaurar la Bios original gracias al dual Bios.

[devilangel]

buen aporte solidus, nos cuentas tu experiencia cuando te compres esa tarjeta

[devilangel]

alguien sabe si ya llegaron las 6950 a los importadores mas conocidos de compuplaza? en deltron sale de $420 a mas con margen de ganancia

[Migoffs]

Sapphire Radeon HD 6950 2GB 256-bit GDDR5 PCI Express 2.1 x16 $407.94 lima price.

[LeonH]

Acaban de mostrar la MSI R6950 Twin Frozr II en el CES 2011, y tmb. ya publicaron un review de la misma en tbreak.com:

MSI R6950 Twin Frozr II Review










Galería de imágenes en HD

Mi gran duda es si tmb. se podrán mutar como las actuales HD6950 vanilla, ya que por mas que busco no encuentro el switch para el dual bios, pues si se da eso, mejor sera comprar una HD6950 vanilla, mutarla, ocearla y cambiar la pasta térmica y quizá el cooler stock por uno mejor para mantener las temps a raya.

[mephixto]

Presentaron la RADEON HD 6990 Antilles



En buena hora que compre un case grande :D

Mas info y fotos en los links:

http://www.engadget.com/2011/01/26/a...looking-large/

http://www.4gamer.net/games/122/G012292/20110126021/

[devilangel]

que preciosidad, aunque no este a mi alcance

[pepecp]

que preciosidad, aunque no este a mi alcance

Jaaa muy caro ps tio!!! Mejor ahora es comprar la 560 gtx en costo-rendimiento es la mejor opcion :):):) ojala lleguen a buen precio al mercado local :d

[San Diablo]

Alamela, esa tarjeta es mas grande que un ladrillo, literalmente.
Habra que amarrarla con pabilo para que no quiebre el slot pci-e.

Saludos

[daknio]

asu q tal tarjeta lo kiero comprar pero primero a comprar nueva PC :(

[devilangel]

Jaaa muy caro ps tio!!! Mejor ahora es comprar la 560 gtx en costo-rendimiento es la mejor opcion :):):) ojala lleguen a buen precio al mercado local :d

salto el primer fanboy, esa es gama entusiasta, segun tu, tu gts 250 refrito es gama media :cheesy: no vaya a darte un paro cuando vayas a mi casa y veas a este pinino

[pepecp]

salto el primer fanboy, esa es gama entusiasta, segun tu, tu gts 250 refrito es gama media :cheesy: no vaya a darte un paro cuando vayas a mi casa y veas a este pinino

Fanboy?? x decir que la gtx 560 es mejor en precio rendimiento, viendo en newegg la 560x msi Twin Frozer esta 249 cocos ojala llegue a buen precio al mercado local :D.

PD: Mi actual gts 250 aun me jala a excepcion de games como metro 2033 no soy fantico en ponerle full de full, no gasto mi plata por gastar esperar la gtx 560 o gts 550 :D, me olvidaba tu comentario sono por decirlo asi algo despectivo, ojala lo rectifiques. Mucha suerte con tu experimiento de flashear Bios 6950 a 6970 :):):)