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NVIDIA Tegra 4 will come with 72 GPU cores, leaked slide indicates

0. phoneArena 18 Dec 2012, 07:19 posted on

According to a leaked presentation slide, supposedly detailing the structure of the NVIDIA Tegra 4 SoC, the company's next mobile chip will offer 72 graphics cores. All that silicon should deliver six time the raw performance currently offered by the Tegra 3, which has "only" 16 GPU cores at its disposal...

This is a discussion for a news. To read the whole news, click here

posted on 18 Dec 2012, 07:23 14

1. RaKithAPeiRiZ (Posts: 1488; Member since: 29 Dec 2011)


weirdest boner right now

posted on 18 Dec 2012, 07:37 6

8. MeoCao (unregistered)


Wow, 64 GPU in a chip
4 A15 cores and 1 A7 core?
28 nm technology.

this chip will blow competition out of water

posted on 18 Dec 2012, 07:56 16

17. jove39 (Posts: 1953; Member since: 18 Oct 2011)


Read again it says 72 core gpu

posted on 18 Dec 2012, 07:58 4

19. dickwyn (Posts: 621; Member since: 07 May 2012)


it think its 72 CUDA cores something like a geforce graphics card

posted on 18 Dec 2012, 08:09 1

24. MeoCao (unregistered)


ur right, I'm too excited. lol

posted on 18 Dec 2012, 08:08

23. RaKithAPeiRiZ (Posts: 1488; Member since: 29 Dec 2011)


im really hoping they go for a wolfson DAC with the soc that realtek is no good

posted on 18 Dec 2012, 08:24

28. Captain_Doug (Posts: 1034; Member since: 10 Feb 2012)


Doesn't mention an A7. Speculation is fine but not when you declare it as truth.

posted on 18 Dec 2012, 07:26 2

2. PackMan (Posts: 277; Member since: 09 Mar 2012)


These must be CUDA cores, not like those in Intel Cpu's.

posted on 18 Dec 2012, 07:32 2

3. wendygarett (unregistered)


Just curious, what is the advantage of having many gpu core?

posted on 18 Dec 2012, 07:34

4. zvioocge (Posts: 26; Member since: 23 Oct 2012)


it affects performance

posted on 18 Dec 2012, 07:37 2

7. neutralguy (Posts: 1152; Member since: 30 Apr 2012)


*video performance, specifically for gaming

posted on 18 Dec 2012, 07:58 10

18. desijatt (Posts: 58; Member since: 28 Aug 2012)


Mali 400 has 4 cores, and tegra3's gpu has 12 cores but Mali 400 performs better......no. of cores matters but cores wit new and better architecture performs better

posted on 18 Dec 2012, 08:16 3

25. jove39 (Posts: 1953; Member since: 18 Oct 2011)


Tegra3 doesn't have unfied shaders so it does lose on efficiency...but those 12 core are good enough to trump Mali 400...If you see benchmark results...Tegra3 performance is really choked by it single channel memory interface. Now These issues are sorted...in Tegra4 to some extent (I'll still like to see 4 channel bus like in A5/A6).

posted on 18 Dec 2012, 08:22

27. picka_vi_materina (Posts: 174; Member since: 21 Nov 2011)


Mali 400 doesn't have unified shaders either. Tegra 3 GPU is nowhere near Mali, just compare the Note 2 with any Tegra 3 running device.

posted on 18 Dec 2012, 08:21 1

26. picka_vi_materina (Posts: 174; Member since: 21 Nov 2011)


"Core" is a confusing term used in comparison of such chips. Mali 400 MP4 is actually like having 4 GeForce T3 GPUs put together. Tegra 3 is a single GPU. Mali and PowerVR GPUs, can be compared to the GTX 690, while T3 GPU is just a single GTX 680.

posted on 18 Dec 2012, 08:51

32. PackMan (Posts: 277; Member since: 09 Mar 2012)


Wrong. Gtx 690 has two physical GPU's. Kind of like having two xeons on the same board.

posted on 18 Dec 2012, 08:25

29. Captain_Doug (Posts: 1034; Member since: 10 Feb 2012)


Well put.

posted on 19 Dec 2012, 03:48 1

54. yowanvista (Posts: 341; Member since: 20 Sep 2011)


Wrong, CUDA Cores are more like stream processors and not actual physical cores. It has nothing to do with regular cores.

posted on 18 Dec 2012, 07:38 4

10. protozeloz (Posts: 5396; Member since: 16 Sep 2010)


Cores are used to do math calculations (for graphics)

Analogy :
its like having a two way street with only two lanes vs one with 4+ lanes, when you have

100 cars can go faster on a 4 lane road than a 2 lane one

posted on 18 Dec 2012, 07:47 1

12. wendygarett (unregistered)


Got it :)
So how do you think about this?
I just wanna learn more thing so no offense lol

posted on 18 Dec 2012, 08:03

22. protozeloz (Posts: 5396; Member since: 16 Sep 2010)


How do I think about the analogy?
Or
What do I think about that processor?

posted on 18 Dec 2012, 09:38

39. tedkord (Posts: 13460; Member since: 17 Jun 2009)


I think that's a better analogy for the bus width than the number of cores. Number of cores would be likened to the number of cars, each carrying information.

If you've got 72 cars (full of information) trying to deliver it down a single lane road (say, a 64-bit wide bus), they will be slower than on a dual lane (128-bit), which will still be slower than on a quad lane (256-bit).

More cores can calculate more math, but other factors like bus width and speed and GPU efficiency can bottleneck it such that another, fewer core GPU is more efficient.

posted on 18 Dec 2012, 07:35

5. sorcio46 (Posts: 435; Member since: 27 Jul 2011)


Nvidia please get rid of the PRISM technology, it only gaves a poor contrast to the screens.

posted on 18 Dec 2012, 07:36 2

6. neutralguy (Posts: 1152; Member since: 30 Apr 2012)


This will eat up exynos and qualcomm immediately. :D

posted on 18 Dec 2012, 08:00 3

21. jove39 (Posts: 1953; Member since: 18 Oct 2011)


Qualcomm never chose to implement A15 cores (krait is not entirely A15)...so current king APQ8064 will be dethroned in next few months...but Exynos 5 will have A15 cores...so It'll be Tegra vs Exynos next year.

posted on 18 Dec 2012, 08:27 1

30. Captain_Doug (Posts: 1034; Member since: 10 Feb 2012)


The battle I want to see will not be from processor to processor since I know those will be amazing but to compare a T-604 in the 5250/5400 vs the Tegra 4 GPU. Mali has done very well inthe GPU department but if the GPu in the Tegra 4 is a s powerful as they say this may be interesting.

posted on 18 Dec 2012, 09:22 1

38. TylerGrunter (Posts: 1543; Member since: 16 Feb 2012)


For the theoretical count the T-604 and the Tegra4 GPUs should be in the same range, it will depend on speed of the memory bus and the clocking.
But we'll have to wait for the benchmraks to have any final saying.

posted on 18 Dec 2012, 10:23 1

42. jove39 (Posts: 1953; Member since: 18 Oct 2011)


T604 is no match for 72 nvidia cores...believe me on this! I also doubt low memory bandwidth may restrict performance of nvidia gpu.

posted on 18 Dec 2012, 15:31

51. TylerGrunter (Posts: 1543; Member since: 16 Feb 2012)


I´m talking here just with the theoretical numbers, so I won´t put my hand on the fire here. My expectations is that the GPU will be somewhere between the Mali-T604 and the PowerVR SGX 554MP4, but as I said to Pedro0x I´m making a bold assumption here: that the new cores are only able to do 1 MAD per cycle. If I´m wrong there my calculation is screwed, but if I´m right (and I´m probably right) it should be quite a good aprox. We´ll see it when it comes out anyway ;)

posted on 18 Dec 2012, 15:20

50. Captain_Doug (Posts: 1034; Member since: 10 Feb 2012)


Yep. Can't wait.

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