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Thread: News - AMD Radeon HD 7770 pictured and benchmarked

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    News - AMD Radeon HD 7770 pictured and benchmarked

    Mainstream 'Southern Islands' GPU leaked ahead of February launch.
    Read more.

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    It still needs a PCI-E connector?? I would expect a card built on a 28NM process and with a smaller GPU than the HD6850 1GB to be bus powered. Hopefully,the PCI-E power connector is there for more stable power delivery and/or for OEMs to produced pre-overclocked models. OTH,it could be down to the 2GB of GDDR5 and hopefully a 1GB version which is bus powered will be released. The PCB also looks longer than what is needed too,so hopefully there will be shorter cards too.


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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    hopefully it`ll overclock as well as the 7970 - currently at stock it matches the 6790

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    Looks like an engineering sample to me, so basically take everything said about it with a pinch of salt Don't forget that even if it only draws 76W it'd still need a power connector!

    Besides, just behind a 6850 is still a significant leap ahead of the 57[5|7]0 (which has been AMDs card in this price range for over 2 years now!) - the x7xx range tends to be the first non-bus-powered card - assuming AMD are following the usual radeon nomenclature. That could mean we'll be looking at a bus-powered 7670 with 5770 performance or better... which would do me very nicely

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    a 6770 (5770) gets about 2800 in 3dm11; 3200 or so is pretty much a 5830 - nw price

    it needs to be under £100

    why?

    £118 gets you a 6850 on scan and its faster - a 6790 (which it pretty much would replace) is also £100

    edit:

    SA is saying that the 76xx and lower will be rebrands - again
    Last edited by HalloweenJack; 03-01-2012 at 03:06 PM.

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    Quote Originally Posted by HalloweenJack View Post
    edit:

    SA is saying that the 76xx and lower will be rebrands - again
    I'd heard something similar, although I thought we were getting some lower-mid-range VLIW4 cards too

    Something's up with the rumour mill somewhere...

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    I thought that Trinity is using VLIW4 shaders,so has AMD found a way of making Crossfire work with VLIW5 cards??

    Edit!!

    Has anyone noticed that the HD7970 had a dedicated Video Transcode Engine.I wonder if all the GCN cards will have this?? AFAIK,I have not seen any reviews using it.


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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    looking at the rumours it seems that 7790 and upwards (7850 and 7870 (and maybe 7890) will be the new tech `pitcairn le (or vanilla or pro or xt)` just as 6790 is a cut down 6850; the 7790 will be a cut down 7850 and priced $20 cheaper

    edit:

    cat , the 6870 is a VLIW5 card , and they can be crossfired??

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    they need to release the info on the 7850 & 7870 as im struggling to not buy a new 6870 or 560ti at the moment to replace my aging 4870

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    Quote Originally Posted by CAT-THE-FIFTH View Post
    I thought that Trinity is using VLIW4 shaders,so has AMD found a way of making Crossfire work with VLIW5 cards??
    I thought the non-GCN cards were VLIW4? Except for any that are re-rebrands...

    Quote Originally Posted by CAT-THE-FIFTH View Post
    Has anyone noticed that the HD7970 had a dedicated Video Transcode Engine.I wonder if all the GCN cards will have this?? AFAIK,I have not seen any reviews using it.
    Something other than AVIVO HD?
    Last edited by watercooled; 03-01-2012 at 06:00 PM.

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    Quote Originally Posted by watercooled View Post
    I thought the non-GCN cards were VLIW4?
    Well it has mentioned the lower end cards will be rebrands of existing HD6000 series cards which are VLIW5 based.
    Quote Originally Posted by watercooled View Post
    Something other than AVIVO HD?
    Yep. It is basically a hardware based video encoder:

    http://www.anandtech.com/show/5261/a...-7970-review/9


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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    Ah right, Interesting!

    For some reason I read 'transcode' as 'decode' in your post.

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    The Llano IGP also has the Video Codec Engine(VCE) too and it looks like it will be more flexible than Quick Sync. It is an interesting move by AMD, as by integrating it into their discrete GPUs it should mean more developers will come on board and support it.


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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    If VCE is still "lesser quality" like QS and AVIVO are, then it will also be just as useless.

    Does anyone do a full quality GPGPU transcoding product?
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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    Quote Originally Posted by shaithis View Post
    If VCE is still "lesser quality" like QS and AVIVO are, then it will also be just as useless.

    Does anyone do a full quality GPGPU transcoding product?
    Do you mean lossless encoding?

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    Re: News - AMD Radeon HD 7770 pictured and benchmarked

    http://www.guru3d.com/news/radeon-hd...specs-leaked-/


    IF those are true then its no rebrand - the 7670 looks to match a 6770

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