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[TR] Micron reports early successes in GDDR5X production

post #1 of 44
Thread Starter 
Quote:
Micron Technology posted an early report on its production of GDDR5X chips today, and the results sound good. The company says it's gotten working silicon back from its fabs earlier than expected, and those parts are already hitting 13Gb/s speeds. That's already toward the top end of the expected speeds for GDDR5X, whose specified transfer rates range from 10 to 14 Gb/s. Micron says those results are "incredibly promising."

Source.


GDDR5X seems well placed to become the standard in mid-range and entry level gaming GPUs for the next generation.

Bandwidth in the region of 224 GB/s (today's GTX 980) on a 128-bit bus (GTX 960) and twice that on a 256-bit bus.

Given it's completely new tech, HBM2 will mostly likely be exclusive to the high end parts.
 
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post #2 of 44
I don't think HBM2's price to performance ratio can compete with GDDR5X. Does Pascal really need the extra bandwidth over what 256bit GDDR5X will offer?
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post #3 of 44
Thread Starter 
Quote:
Originally Posted by littledonny View Post

I don't think HBM2's price to performance ratio can compete with GDDR5X. Does Pascal really need the extra bandwidth over what 256bit GDDR5X will offer?

At the high-end, as in the next Titan? Probably a bit. The bonus is that they can allocate the saved power on the GPU cores, both count and speed.
 
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post #4 of 44
GDDR5X, still a band-aid, if you can even call it that, until HBM becomes cheaper.

See this is how technology should work. If HBM wasn't being worked on, we probably wouldn't even have GDDR5X.

Competition brings innovation. That said, HBM is the future.
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post #5 of 44
Keep in mind that "Gb/s" in this context means "effective frequency in gigahertz." Each pin is transferring at 13Gb/s, meaning the transfer rate is equivalent to 13GHz. The memory itself is quad-pumped, I think, so the actual frequency is 3250MHz. Compare to current GDDR5 around 1500MHz.

Quote:
Originally Posted by umeng2002 View Post

GDDR5X, still a band-aid, if you can even call it that, until HBM becomes cheaper.

See this is how technology should work. If HBM wasn't being worked on, we probably wouldn't even have GDDR5X.

Competition brings innovation. That said, HBM is the future.

If I understand it correctly, this is GDDR5 running at 10% less volts and 100% more hertz. It's not really a band-aid so much as a stopgap for cheaper HBM. Expect to see it in high-end, but not flagship, GPUs.
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post #6 of 44
Quote:
Originally Posted by CynicalUnicorn View Post

If I understand it correctly, this is GDDR5 running at 10% less volts and 100% more hertz. It's not really a band-aid so much as a stopgap for cheaper HBM. Expect to see it in high-end, but not flagship, GPUs.
Damn, that's a lot of hertz.
    
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post #7 of 44
Why not just call it GDDR6
post #8 of 44
Quote:
Originally Posted by ToTheSun! View Post

Damn, that's a lot of hertz.
i misread that as hurtz, "100% more hurtz" sounds quite painful. ph34r-smiley.gif

Quote:
Originally Posted by Namwons View Post

Why not just call it GDDR6
because it isn't a new architecture, or whatever the term they use for storage types.
post #9 of 44
Quote:
Originally Posted by Namwons View Post

Why not just call it GDDR6

GDDR5X isn't an architecture change, or a new type of memory, so to speak. It is just a new way of operating GDDR5 to increase throughput. I imagine there are a few tweaks to it, but by no means a new design philosophy.
    
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post #10 of 44
This is going to be a great year! I can't wait to see the new hardware and games!
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