Spitballing the performance of Nvidia’s purported GTX 1070 Ti

The smoke around Nvidia's purported GeForce GTX 1070 Ti has become too thick to ignore of late. We've seen full specs of the card leak over the past few weeks, and a prematurely-posted product page from board partner KFA2 (spotted by the folks at Hexus, and now removed) has more or less confirmed that such a card is coming. We don't know exactly when such a product might arrive yet, but that's not stopping me from pulling out my top-secret Excel spreadsheet and making some predictions about where a presumable GTX 1070 Ti will sit in today's graphics-card pantheon. I've done it before, and my predictions turned out to be dead-on, so hey. Let's do it again.

  GPU

base

clock

(MHz)

GPU

boost

clock

(MHz)

ROP

pixels/

clock

Texels

filtered/

clock

Shader

pro-

cessors

Memory

path

(bits)

Memory

bandwidth

Memory

size

Peak

power

draw

RX 580 1257 1340 32 144 2304 256 256 GB/s 8 GB 185 W
GTX 1060 6GB 1506 1708 48 80 1152 192 192 GB/s 6 GB 120 W
GTX 1070 1506 1683 64 120 1920 256 256 GB/s 8 GB 150 W
RX Vega 56 1156 1471 64 224 3584 2048 410 GB/s 8 GB 210 W
GTX 1070 Ti? 1607? 1683? 64? 152? 2432? 256? 256 GB/s? 8 GB? 180 W?
RX Vega 64 1274 1546 64 256 4096 2048 484 GB/s 8 GB 295 W
GTX 1080 1607 1733 64 160 2560 256 320 GB/s 8 GB 180 W
GTX 1080 Ti 1480 1582 64 224 3584 352 484 11 GB 250 W
Titan Xp 1405 1585 96 240 3840 384 547 GB/s 12 GB 250 W

Courtesy of the team at Tech ARP (via Hexus), we have a list of specs that was apparently confirmed by the product page posted by KFA2. The GTX 1070 Ti will almost certainly use a less-neutered version of the GP104 GPU that underpins the GTX 1070 and GTX 1080.

A block diagram of a possible GP104 GPU for the GTX 1070 Ti

Of the 20 Pascal streaming multiprocessors on board GP104, the GTX 1070 Ti will purportedly have 19 of them active, for a total of 2432 shader processors, 152 texture units, and 64 ROPs. Those figures are only slightly behind the resources of the GTX 1080's, so the GTX 1070 Ti might sit uncomfortably close to that card in Nvidia's product stack (at least reference clock for reference clock). We'll see just how close in a moment.

A potential KFA2 GTX 1070 Ti. Source: KFA2

The biggest difference between the GTX 1070 Ti and GTX 1080 will apparently be in the lesser card's memory subsystem. Where the GTX 1080 uses 8 GB of GDDR5X RAM clocked at 10 GT/s or 11 GT/s, the hypothetical GTX 1070 Ti might stick with 8 GB of GDDR5 RAM running at 8 GT/s. That means the pumped-up GTX 1070 could offer just 256 GB/s of memory bandwidth, down substantially from the GTX 1080's 320 GB/s at reference speeds.

  Peak pixel

fill rate

(Gpixels/s)

Peak

bilinear

filtering

int8/fp16

(Gtexels/s)

Peak

rasterization

rate

(Gtris/s)

Peak

FP32

shader

arithmetic

rate

(tflops)

Radeon RX 580 43 193/96 5.4 6.2
GeForce GTX 1060 6GB 82 137/137 3.4 4.4
GeForce GTX 1070 108 202/202 5 7
Radeon RX Vega 56 94 330/165 5.9 10.2
GeForce GTX 1070 Ti? 108? 256/256? 6.7? 8.2?
Radeon RX Vega 64 99 396/198 6.2 12.7
GeForce GTX 1080 111 277/277 6.9 8.9
GeForce GTX 1080 Ti 139 354/354 9.5 11.3
Nvidia Titan Xp 152 380/380 9.5 11.3

The beefed-up GTX 1070 Ti doesn't gain any extra pixel fill rate compared to its less-shiny forebear, but its peak texturing and compute capabilities make it a better match for the RX Vega 56. The green team doesn't seem willing to let its competitor hold even a dead heat in the graphics-card horse race, it seems. It'll remain to be seen how Nvidia manages to keep the GTX 1070 Ti from cannibalizing GTX 1080 sales, though, given how closely-matched the cards are in almost every measure of theoretical performance we can bring to bear.

A potential bare GTX 1070 Ti board. Source: KFA2

Some rumors suggest that all GTX 1070 Ti cards will be locked to the same frequencies, though those rumors really don't make a ton of sense given that GPU Boost 3.0 is a thing. Maybe Nvidia intends to limit the headroom of that dynamic clock scheme on the GTX 1070 Ti. We won't know for sure until official details emerge.

Comments closed
    • Krogoth
    • 2 years ago

    1070Ti will be a near-1080 for less $$$$ with the intention of clearing out GP104 stock to make room for Volta.

      • Waco
      • 2 years ago

      Not sure why you’re getting downvotes, you’re probably right.

        • Krogoth
        • 2 years ago

        Nvidia and AMD RTG(formerly ATI) have always done this in advance of a next generation platform. They rebrand and/or slightly tweak existing their SKUs with a reduction in prices to clear out old inventory.

          • ChicagoDave
          • 2 years ago

          Yeah I’m guessing 1080s and 1070s are just about wrapping up production. They’ll continue producing the Ti’s for the high end, maybe keep the 1070 at a reduced price, 1060 also reduced. I can’t see them continuing 1080 production much longer though. Once stock is about cleared out they’ll drop Volta.

          The only thing that was slightly different this time was how early in the product cycle NV released the 1080Ti. I was expecting the 1080Ti to come out a few months later than it did, but then the performance and price spread between the 1080 and 1080Ti was unusually large so it didn’t really cannibalize 1080 sales.

      • NTMBK
      • 2 years ago

      Or alternatively the yields have improved enough to make the 1070 unnecessary.

        • NoOne ButMe
        • 2 years ago

        would think that woudl mean a full GP104 (aka 1080) and a 1070ti or 1070v2 which has larger difference (17-18CU?).

      • the
      • 2 years ago

      However nVidia has stated that [url=https://finance.yahoo.com/news/expect-nvidia-amd-ride-cryptocurrency-124837743.html<]Volta for consumers will not be out this year.[/url<] GV104 presumably would be the first Volta chip for consumers and the current expectation/speculation is that it would launch in March at GDC. That'd give the GTX 1070 Ti roughly 6 months on the market before its replacement arrives. Considering that this is just a small bump to fill out a product stack in light of a new competitor, it makes sense. However, we're entering the holiday shopping season there is a sales spike and a normal decline in sales in the January/February time frame. One would think that the normal holiday sales boost would do much to clear out existing inventory before GV104 arrives on its currently predicted due date. There is another factor in GP104 availability and that is supply of [url=https://techreport.com/news/31909/sk-hynix-first-gddr6-ram-will-initially-top-out-at-14-gbps<]GDDR6[/url<]. Delays there most certainly would also delay the high end GP104, though the lowend model could potentially use GDDR5X if nVidia designed some flexibility into the controller.

    • LoneWolf15
    • 2 years ago

    [b<]purported[/b<] Ahhh, good. I was suffering withdrawal.

    • Chrispy_
    • 2 years ago

    Performance speculation is fun, but all that really matters is what the price settles down to once the cryptocurrency miners have raided every store in the land.

      • TravelMug
      • 2 years ago

      Prices are coming down big time. At least in Europe, the 1060 3GB is down to under 200EUR, the 1060 6GB is sitting in the 250-270EUR range with a couple available even a tad under 250EUR and there are offers of 1070 models for under 400EUR now with a bunch in the 400-430 range. Those are almost pre-miningcraze prices from end of May and beginning of June.

      • freebird
      • 2 years ago

      And that all depends on it’s hashrate… ; ) which may not be much higher than a standard 1070 since ETH hashrates with the 1070 are mainly limited by it’s Memory speed and not GPU speed.

      We’ll have to wait and see if the extra compute is limited by the memory speed limit for mining, since it is rumored to still be using GDDR5 running at 8GHz.

        • Chrispy_
        • 2 years ago

        That’s actually a good point. If the hashrate is no better than a 1070, this might be a card the miners ignore (like the 1080 with it’s high-latency GDDR5X).

        One can hope….

    • chuckula
    • 2 years ago

    Nice Tweet Jeff!

    I’m gonna say it nicely, but you calculated guesstimate is not even WCCFTECH worthy. You got your basics all wrong. You could have said i think 1070Ti is slower then 1080 and gone home.

    😉

      • derFunkenstein
      • 2 years ago

      He should’ve gone all-out, fully-aggressive and included the poster’s handle in the screen cap. As twet (past tense of tweet), it’s very [url=https://www.raygunsite.com/products/midwest-passive-aggressive<]midwestern passive-aggressive[/url<]. Go big or go home, amirite?

    • AnotherReader
    • 2 years ago

    There is recent precedent for a cap on frequencies: most, if not all, 1050 Tis are capped to [url=http://www.techpowerup.com/reviews/MSI/GTX_1050_Ti_Gaming_X/30.html<]1911 MHz.[/url<]

      • chuckula
      • 2 years ago

      That’s appropriate since 1911’s have been used to cap people for a long long time.

        • AnotherReader
        • 2 years ago

        You should rename your account to punking.

          • drfish
          • 2 years ago

          At first, I read that as “puking” but then my brain turned it into “pukeula” – which might be how some of chuck’s jokes make people feel. I love them though, never change.

            • AnotherReader
            • 2 years ago

            I love his jokes too; keep them coming.

            • NeoForever
            • 2 years ago

            Chuck is kinda funny. His jokes aren’t bad either.

          • ptsant
          • 2 years ago

          Can someone put this in plain terms for people who don’t get the subtle cultural references?

            • juzz86
            • 2 years ago

            The M1911 is a long-serving, famous handgun 🙂

            EDIT: Sorry, saw you weren’t quoting Chuck after I posted!

          • freebird
          • 2 years ago

          Seasonally adjusted that should be Pumpkin…

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