Monday, July 18th 2011

AMD Radeon HD 7000 Series to be PCI-Express 3.0 Compliant

AMD's next generation of graphics processors (GPUs) that will be branded under the HD 7000 series, are reported to be PCI-Express Generation 3 compliant. The desktop discrete graphics cards will feature PCI-Express 3.0 x16 bus interfaces, and will be fully backwards-compatible with older versions of the bus, including Gen 1 and Gen 2. Motherboards sold today feature Gen 2 PCI-E slots, although some of the very latest motherboards launched by major vendors feature PCI-Express 3.0 slots.

The new bus doubles the bandwidth over PCI-E 2.0, with 1 GB/s of bandwidth per lane, per direction. PCI-Express 3.0 x16 would have 32 GB/s (256 Gbps) of bandwidth at its disposal, 16 GB/s per direction. AMD's next generation of GPUs, codenamed "Southern Islands" will be built on the new 28 nm process at TSMC, and will upscale VLIW4 stream processors. Some of the first PC platforms to fully support PCI-Express 3.0 will be Intel's Sandy Bridge-E. Whether AMD's GPUs have hit a bandwidth bottleneck with PCI-E Gen 2, or is AMD trying to just be standards-compliant, is a different question altogether.Source: Donanim Haber
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85 Comments on AMD Radeon HD 7000 Series to be PCI-Express 3.0 Compliant

#1
theoneandonlymrk
i swear you's are all noobs,people were bemoanin me yesterday sugesting i didnt need pciex 3 now yall on bout it, catch up!:D

now the question ive asked 3 times on TPU, does anyone know if the 990 AMD chipset is compatible?????:confused:

fair enuff ya dont know
Posted on Reply
#2
Hayder_Master
WTF! are they joking? How the release cards bottlenicked by them motherboards and work with intel chipsets‏!‏
Posted on Reply
#3
Damn_Smooth
by: theoneandonlymrk
i swear you's are all noobs,people were bemoanin me yesterday sugesting i didnt need pciex 3 now yall on bout it, catch up!:D

now the question ive asked 3 times on TPU, does anyone know if the 990 AMD chipset is compatible?????:confused:

fair enuff ya dont know
It isn't at the moment. Maybe in future boards.

I'm still saying that you don't need it though.
Posted on Reply
#4
dr emulator (madmax)
by: Roph
I'm still running XP too, I don't see Vista Service Pack 3 (aka Windows 7) as an upgrade. Everything I want to do on my computer, I do great on XP. Smooth as butter :)
well it runs fine with my x58 motherboard so i prefer it aswell

by: Pestilence
XP = No DX11

I like XP but would never go back to it. X64 XP was buggy as shit
ye there is that and as my name suggests i like emulators ,and some are supposed to work better with dx 10/11 namely pcsx2 , so i'll upgrade sometime ,
just that i feel pushed into it by all the win 7 lovers :p and by the manufacturers ,

i looked the other week for drivers for the latest ati graphics card i was thinking of getting, and they were vista/7 only :eek::twitch::cry:
Posted on Reply
#5
kaneda
by: Mistral
This was one of my first thoughts when I heard of PCI-Ex3 being around the corner. There were some rumours about that, but I haven't heard anything concrete yet.



nV was the first with DX10, but there wasn't exactly a slew of awesome DX10 games raining on us at the time, or even now, either. Your point?
The new unified shader architecture allowed immense performance improvements in DX9 gaming. DX11 cards did not offer quite the same. Slight difference, but I do enjoy nitpicking.
Posted on Reply
#6
seronx
by: theoneandonlymrk
i swear you's are all noobs,people were bemoanin me yesterday sugesting i didnt need pciex 3 now yall on bout it, catch up!:D

now the question ive asked 3 times on TPU, does anyone know if the 990 AMD chipset is compatible?????:confused:

fair enuff ya dont know
http://www.amd.com/us/products/desktop/chipsets/9-series-integrated/Pages/amd-990fx-chipset.aspx
http://www.amd.com/US/PRODUCTS/DESKTOP/CHIPSETS/9-SERIES-INTEGRATED/Pages/amd-990x-chipset.aspx
http://www.amd.com/US/PRODUCTS/DESKTOP/CHIPSETS/9-SERIES-INTEGRATED/Pages/amd-970-chipset.aspx

Nope
Posted on Reply
#7
Kreij
Senior Monkey Moderator
Opps ... stupid slow internet. Carry on.
Posted on Reply
#8
seronx
by: Kreij
Let's get back on-topic folks, which in case you missed from the thread title is AMD's 7000 series and PCI-E 3.0

Thanks.
AMD 7000HD GPUs
  • Support for x86 addressing with unified address space for CPU and GPU.[list]
  • 64-bit addressing
  • GPU sends interrupts to CPU on various memory errors (such as page faults).
  • Usages of MIMD instructions instead of VLIW (Which was used in previous AMD GPU-architectures).
    [/list]These changes could lead to better utilization of the GPU for CPU tasks. This brings the GPU farther away from only being used for graphics.
  • PCI Express 3.0

    8b/10b Encoding to 128b/130b encoding
    8 bits + 2 syncs bits to 128 bits + 2 sync bits
    20% Overhead to 1.54% Overhead
    4Gbps to 8Gbps(7.88Gbps actual)
    5GT/s to 8GT/s

    PCI-e links are for CPU<-->GPU talk
    and GPU0 <---> GPU1 talk
    but the SLI/CrossfireX bridges help with that but with every speed boost the need of those bridges vanish making it cheaper to make the gpus
    (How cheaper, I wouldn't know)

    by: Kreij
    Opps ... stupid slow internet. Carry on.
    The internet never forgets HA HA!
    Posted on Reply
    #9
    Red_Machine
    Is it just me, or is everyone instantly reminded of the Radeon 7000VE and 7500 when they see this thread?
    Posted on Reply
    #10
    eidairaman1
    by: Roph
    There's not a single game that I'd like to play but can't due to me using XP. I played through Crysis 2 fine. Mostly I just play TF2.

    I also find it funny that you call XP Bloated, while at the same time push Windows Vista SP3.
    Ok Windows 7 is not Vista SP3, it is separate code done by a different team at MS. The gui might share alot with vista but compatibility and driver support and overall boot up and shut down speed are even faster than XP was.


    N Ya those boards are still made to this day
    Posted on Reply
    #11
    Pestilence
    Any news on the 7000 series yet? 2000 shaders?
    Posted on Reply
    #12
    seronx
    by: Pestilence
    Any news on the 7000 series yet? 2000 shaders?
    The idea is, We dunna know

    But if it follows progression we will get 2000ish shaders

    edit: going to find easier pictures
    Posted on Reply
    #13
    Red_Machine
    by: eidairaman1
    Ok Windows 7 is not Vista SP3, it is separate code done by a different team at MS. The gui might share alot with vista but compatibility and driver support and overall boot up and shut down speed are even faster than XP was.
    It is just Vista Second Edition. It's only NT 6.1 and the differences are about the same that were between the 98's.
    Posted on Reply
    #14
    Pestilence
    by: seronx
    The idea is, We dunna know

    But if it follows progression we will get 2000ish shaders

    edit: going to find easier pictures
    6GB of GDDR5? What for? 2 is PLENTY
    Posted on Reply
    #15
    seronx
    by: Pestilence
    6GB of GDDR5? What for? 2 is PLENTY
    Ray tracing, MLAA 2.0, WDDM 2.0

    Future proofing

    The SIMD Unit has 16 ALUs
    A Compute Core has 64 ALUs
    A Compute Array has 256 ALUs
    The max possible compute arrays are 32
    32x256 = 8192 ALUs

    edit: I dunna know about GPUs forgiveh meh

    ALUs = Shaders in GCN
    Posted on Reply
    #16
    gottistar
    by: seronx
    Ray tracing, MLAA 2.0, WDDM 2.0

    Future proofing
    Always make me laugh...it should be "the next few months proofing"

    Is there such a thing these days..
    Posted on Reply
    #17
    eidairaman1
    by: Red_Machine
    It is just Vista Second Edition. It's only NT 6.1 and the differences are about the same that were between the 98's.
    its far from Vista-Reliability, compatibility, speed Are whats In 7 Vista was sluggish, in compatible with several applications that claimed to be compatible and it tends to freeze up alot.

    Far from 98 and 98 SE

    ME, Vista both MS biggest mistakes.
    Posted on Reply
    #18
    xenocide
    by: Red_Machine
    It is just Vista Second Edition. It's only NT 6.1 and the differences are about the same that were between the 98's.
    Windows 7 is everything Windows Vista wanted to be, but wasn't. Even Vista after a SP or two was far from bad. The problem was that Vista was a huge re-write of Windows (mostly under-the-hood stuff), and came with a lot of overhead, and the average hardware wasn't up to the task. I remember a similar situation when XP came out, but it didn't last nearly as long. My Q66004GB RAM setup had no issues with Vista Ultimate x64.

    My current computer runs Windows 7 better than any computer I had in the past ran XP, and at this point I could never imagine going back.

    As for the actual topic at hand, I remain doubtful that there are any cards that are actually bottlenecking in PCIe because of a lack of bandwidth, especially since going from 16x -> 8x is only like a 1-3% performance drop. This is just a feature for AMD to tack onto the list to try and sell more cards.
    Posted on Reply
    #19
    WarraWarra
    +1 ATI. :rockout:

    And everyone thought I was insane when I kept on banging on the pci-e 3.0 8x and pci-e 2.0 bottlenecks for gpu makers. Maybe I am maybe not :toast:

    Image where this can go now with all this PCI-Express 3.0 x16 would have 32 GB/s (256 Gbps) freedom.
    Posted on Reply
    #20
    seronx
    by: WarraWarra
    +1 ATI. :rockout:

    And everyone thought I was insane when I kept on banging on the pci-e 3.0 8x and pci-e 2.0 bottlenecks for gpu makers. Maybe I am maybe not :toast:

    Image where this can go now with all this PCI-Express 3.0 x16 would have 32 GB/s (256 Gbps) freedom.
    Since the PCI-e 3.0 is going to be mostly for people who can buy it, they might as well buy a PCI-e 3.0 gpu

    PCI-e Express 3.0 x8(when all slots are used)

    All GPUs will get 126.1Gbps(15.8GB/s) on PCI Express 2.0 8x 53.3Gbps(6.6GB/s) a significant boost(Yes, PCI-Express 3.0 8x is 18.46% faster than PCI-Express 2.0 16x)
    And PCI-E 3.0 16x is 18.46% faster than PCI-Express 2.0 32x

    Intel chipsets that support PCI-e 3.0 are
    3x8

    No word on any AMD Chipsets supporting PCI-e 3.0
    Posted on Reply
    #21
    Thefumigator
    by: xenocide
    Windows 7 is everything Windows Vista wanted to be, but wasn't. Even Vista after a SP or two was far from bad. The problem was that Vista was a huge re-write of Windows (mostly under-the-hood stuff), and came with a lot of overhead, and the average hardware wasn't up to the task. I remember a similar situation when XP came out, but it didn't last nearly as long. My Q66004GB RAM setup had no issues with Vista Ultimate x64.

    My current computer runs Windows 7 better than any computer I had in the past ran XP, and at this point I could never imagine going back.

    As for the actual topic at hand, I remain doubtful that there are any cards that are actually bottlenecking in PCIe because of a lack of bandwidth, especially since going from 16x -> 8x is only like a 1-3% performance drop. This is just a feature for AMD to tack onto the list to try and sell more cards.
    I'm still using Vista and I didn't do a fresh install since 3 years now, because its running too well to justify the hassle and not it's not running bad enough to justify upgrading to seven.

    Service packs, tons of megabytes of updates, and some care, did the trick. It is solid. It only has a slow startup. That's all I can complain.
    Posted on Reply
    #22
    faramir
    by: [H]@RD5TUFF
    It's an upgrade trust me especially when you take into account M$ is going to stop adding security updates for XP.
    Name a couple (other than TRIM support for SSDs which really shouldn't be OS-dependent and obviously affects only users with SSDs) ?

    They are going to stop providing security updates in April 2014, as per their latest announcement.
    Posted on Reply
    #23
    Red_Machine
    Um, DX11, WDM 1.1 (which makes for more stable drivers), support for more than 3GB of RAM, decent 64-bit support. The list goes on.
    Posted on Reply
    #24
    specks
    Good God! :eek:

    I haven't even got my hands on an HD5000 series and now here come the HD7000.

    It is sad to be left out in the dust. :(
    Posted on Reply
    #25
    eidairaman1
    Running Windows 7 on a Dell XPS Gen 1 Laptop just fine and its faster than XP ever was.

    by: xenocide
    Windows 7 is everything Windows Vista wanted to be, but wasn't. Even Vista after a SP or two was far from bad. The problem was that Vista was a huge re-write of Windows (mostly under-the-hood stuff), and came with a lot of overhead, and the average hardware wasn't up to the task. I remember a similar situation when XP came out, but it didn't last nearly as long. My Q66004GB RAM setup had no issues with Vista Ultimate x64.

    My current computer runs Windows 7 better than any computer I had in the past ran XP, and at this point I could never imagine going back.

    As for the actual topic at hand, I remain doubtful that there are any cards that are actually bottlenecking in PCIe because of a lack of bandwidth, especially since going from 16x -> 8x is only like a 1-3% performance drop. This is just a feature for AMD to tack onto the list to try and sell more cards.
    Posted on Reply
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