Monday, August 11th 2014

Alleged GeForce GTX 870 Sample Put Through 3DMark

A Coolaler.com community member claims to have scored a GeForce GTX 870 sample, ahead of its September 2014 launch. GPU-Z cannot correctly detect the GPU at this point. It is, however, programmed to pull out some details of unknown GPUs. It reads the card's name as "D17U-20" featuring a GPU name "13C2." The Device ID and BIOS fields are conveniently redacted, so we cannot say for sure if this is genuine.

The card's CUDA core count is 1,664. Given how streaming multiprocessors in "Maxwell" GPUs launched so far feature 128 cores, this particular chip features 13. Other features read out are 138 TMUs, 32 ROPs, and a 256-bit wide memory interface, holding 4 GB of GDDR5 memory. The sample features clock speeds of 1051 MHz core, 1178 MHz GPU Boost, and 1753 MHz (7012 MHz GDDR5 effective) memory, yielding 224 GB/s of memory bandwidth. The test-bed including a Core i7-4820K "Ivy Bridge-E" quad-core processor. The card was put through 3DMark 11, in its performance (P) and extreme (X) presets. It scored P11919 points in the performance preset, and X4625 in the extreme preset; which makes the card roughly as fast as a GeForce GTX 780. And these are pre-release drivers, and probably a pre-launch qualification sample altogether. Color us intrigued.

Source: Coolaler
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16 Comments on Alleged GeForce GTX 870 Sample Put Through 3DMark

#2
Naito
by: chodaboy19
Is that a good score?
Well, with the alleged shader count of only 70% of what that GTX 780 has, and still scores roughly the same in benchmarks, I'd say that's a good score.
Posted on Reply
#3
MxPhenom 216
Corsair Fanboy
by: chodaboy19
Is that a good score?
Seeing how its about the same as a GTX780, I would say yes?
Posted on Reply
#4
erocker
by: chodaboy19
Is that a good score?
Better than most 780 ti's. *Nvm, 3dMk11
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#5
FrustratedGarrett
It's a decent performer, but is that really the 870 or the GTX880?
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#6
xenocide
Judging from that chart it's probably actually the GTX870.
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#7
the54thvoid
by: FrustratedGarrett
It's a decent performer, but is that really the 870 or the GTX880?

Not a big fan of tweaktown. For long enough they had a poor spread of benches. Cant recall if they also had an open spat with Nvidia in as much as Nvidia stopped sending them review samples. It was because they posted early reviews from getting their hands on many things early.
Sorted now but as such as you get pro Nv sites, I wouldn't use TT for any reference chart. Stick with TPU or Hardware Canucks. Always trust Canadians...

Note this post isn't strictly about the alleged 870 score, just the TT table posted by the quoted member.
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#8
techy1
by: the54thvoid
Not a big fan of tweaktown. For long enough they had a poor spread of benches. Cant recall if they also had an open spat with Nvidia in as much as Nvidia stopped sending them review samples. It was because they posted early reviews from getting their hands on many things early.
Sorted now but as such as you get pro Nv sites, I wouldn't use TT for any reference chart. Stick with TPU or Hardware Canucks. Always trust Canadians...

Note this post isn't strictly about the alleged 870 score, just the TT table posted by the quoted member.
"Always trust Canadians" :O... Justin Bieber, Drake, Celin Dion, Pam Anderson, Brian Adams.... I am just trollin' - cuz we all, deep inside, love Justin so much :D
Posted on Reply
#9
the54thvoid
by: techy1
"Always trust Canadians" :O... Justin Bieber, Drake, Celin Dion, Pam Anderson, Brian Adams.... I am just trollin' - cuz we all, deep inside, love Justin so much :D
I stand galactically corrected, on Bieber alone. He's a national shame.

Hardware Canucks is off my list until they renounce Bieber. Dion can stay, my wife has one of her albums. Adams too.
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#10
HumanSmoke
by: the54thvoid
Not a big fan of tweaktown. For long enough they had a poor spread of benches. Cant recall if they also had an open spat with Nvidia in as much as Nvidia stopped sending them review samples.
TT decided to post advance reviews with non-Nvidia sourced cards. They may not have breached the NDA but likely the people who gave them the samples did. Something, something difference between the spirit and the letter of the law. People take to desperate measures when their site visits start slipping.

As for TT's benches, I always take them with a grain of salt these days - as was discussed in an earlier thread. If they can't even be bothered to update their outdated AIDA64 software, how much accuracy do you attribute to the rest of the benching process?
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#11
Dj-ElectriC
I'm trying to think about how 1664 shaders can make sense....

640
+
640
+
320
+
64?
Posted on Reply
#12
john_
by: Dj-ElectriC
I'm trying to think about how 1664 shaders can make sense....

640
+
640
+
320
+
64?
Add to that that, in one of the two GPUZ screenshots the number of shaders is missing. The whole box is missing.
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#13
ultrawakawaka
if it is maxwell and each processing unit (SMM) has 8 TMU's wouldn't that give it 104 TMUs ? 640/128 = 5 5*8 = 40 1664/128 = 13 13*8 = 104
Posted on Reply
#14
Hilux SSRG
This "870" looks to be performance wise in between 770 and a non oc 780. Disappointing if it comes to fruition. Wonder if the "880" will be equivalent to 780ti.
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#15
TheHunter
by: Dj-ElectriC
I'm trying to think about how 1664 shaders can make sense....

640
+
640
+
320
+
64?
It has 13SMX, each SMX contains 128cores. 13x 128 = 1664

Full GM204 is either 14 or 15SMX. I dobut it will beat 780Ti, probably land between 780 and 780Ti by higher reso and higher AA values, 224gb/s is not enough..


Imo this GK204 is nothing special, only power consumption is a little better that's about it, just like by GK104.


ie Full GM200 chip is where its at for those with newer gpus.
Posted on Reply
#16
Hilux SSRG
by: TheHunter
It has 13SMX, each SMX contains 128cores. 13x 128 = 1664


Imo this GK204 is nothing special, only power consumption is a little better that's about it, just like by GK104.
Full GM200 chip is where its at for those with newer gpus.
Anyone interested in upgrading to the 880/870 should beware like you say. It's not top tier cards, regardless of the naming.
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