Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Whats the difference between ATI Cores and Nvidia Cores??
New Posts  All Forums:Forum Nav:

Whats the difference between ATI Cores and Nvidia Cores??

post #1 of 4
Thread Starter 
Yesterday a friend of mine said, "Nvidia only has 512 cores in their top card, while ATI has 1536 cores, so ATI is better" I was shocked by his conclusion for a moment, I was getting ready to make a snappy comeback. Then a question popped into my head, I know nvidia cards use physical cores, but does ATI use logical cores? Are there physically 1536 separate stream processing units on their die? Even if they are in clusters, thats nuts, and then why so inefficient? so I thought id ask the infinite knowledge, known as OCN
post #2 of 4
ATI/Nvidia, it truly depends on tastes, one could quote 100 reasons why nVidia's better than ATI, while another could reply with 100 reasons why he thinks the opposite, I doubt there is a true superiority of one brand over another; but if we're talking personal preferences, I for instance find ATI cards slightly technically superior to nVidia, but the reason why I opted for nVidia it is because they offer better drivers support and they are generally better supported by videogames. I am sure though, somewhere on the internet there's someone which prefers ATI for my exact same reasons, maybe reversed.

Pertaining your specific question this post may help:

Quote:
The Nvidia GTX 260 core 216 55nm (the only card in the history of GPUs whos name is longer than its part number) contains:

216 cores @576 mhz
GDDR3 on a 448 bit bus with a mem clock of ~2000
32 ROPs
and is on PCIe 2.0

The ATI Radeon 4870 contains:

800 cores @ 750 mhz
GDDR5 on a 256 bit bus with a clock of 900
16 ROPs
and is also on PCIe 2.0

How do these cards perform on par?
Answer:

Quote:
ATI cores are divided by 5, dont remember specific reason. so basically its 216 cores vs 160 cores from ati.

Memory doesn't affect the speed of the graphics card, but rather the resolution u wanna play it on.

for example u can compare the speed of ati and nvidia memory by doing the following. The bit, in other words the bandwidth of information which can pass through is 512 bit having a speed of 1800mhz is the same as a 256 bit with a speed of 3600 mhz. Therefore bit multiplied by speed is the real memory speed.

Dunno what rop si maybe another guy explain that.

so the real comparison would be 216 core at 576mhz vs 160 core at 750 mhz.

448bit*2000 mhz vs 256bit*3600 mhz which is about the same.

In the end the cards perform about the same.
or if you want an insanely complicated explanation I found surfing around:


Edited by Mafia2020 - 4/21/11 at 7:14am
F A T H E R
(16 items)
 
S O N
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 930 Rampage II Extreme NVIDIA GeForce GTX 980 Corsair  
RAMRAMRAMHard Drive
Corsair  Corsair  Corsair  2x120GB SSD 2x4TB Seagate Mirrored, 2x4TB Seaga... 
Optical DriveOSMonitorKeyboard
LG Blu-Ray Recorder Windows 7 Ultimate x64 Dell 30" (2560x1600) Logitech G19 
PowerCaseMouseMouse Pad
Corsair 1200W Thermaltake Element V Logitech G9x The Barracuda 
CPUMotherboardGraphicsRAM
Intel Pentium Dual-Core G2020 @ 2.5 Ghz ASRock H77 Pro/MVP Nvidia GTX 580 2x2GB DDR-3 Ballistics 
Hard DriveCoolingOSMonitor
1xSSD 120GB; 1xHDD 300 GB, 1xHDD 500 GB Stock Windows 7 Ultimate (x64) Monitor 22" 
KeyboardPowerCaseMouse
Microsoft Keyboard EVGA 600W EB Cooler Master Logitech G500 
Mouse Pad
I-Chill Mousepad 
  hide details  
Reply
F A T H E R
(16 items)
 
S O N
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 930 Rampage II Extreme NVIDIA GeForce GTX 980 Corsair  
RAMRAMRAMHard Drive
Corsair  Corsair  Corsair  2x120GB SSD 2x4TB Seagate Mirrored, 2x4TB Seaga... 
Optical DriveOSMonitorKeyboard
LG Blu-Ray Recorder Windows 7 Ultimate x64 Dell 30" (2560x1600) Logitech G19 
PowerCaseMouseMouse Pad
Corsair 1200W Thermaltake Element V Logitech G9x The Barracuda 
CPUMotherboardGraphicsRAM
Intel Pentium Dual-Core G2020 @ 2.5 Ghz ASRock H77 Pro/MVP Nvidia GTX 580 2x2GB DDR-3 Ballistics 
Hard DriveCoolingOSMonitor
1xSSD 120GB; 1xHDD 300 GB, 1xHDD 500 GB Stock Windows 7 Ultimate (x64) Monitor 22" 
KeyboardPowerCaseMouse
Microsoft Keyboard EVGA 600W EB Cooler Master Logitech G500 
Mouse Pad
I-Chill Mousepad 
  hide details  
Reply
post #3 of 4
Thread Starter 
Quote:
Originally Posted by Mafia2020 View Post
ATI/Nvidia, it truly depends on tastes, one could quote 100 reasons why nVidia's better than ATI, while another could reply with 100 reasons why he thinks the opposite, I doubt there is a true superiority of one brand over another; but if we're talking personal preferences, I for instance find ATI cards slightly technically superior to nVidia, but the reason why I opted for nVidia it is because they offer better drivers support and they are generally better supported by videogames. I am sure though, somewhere on the internet there's someone which prefers ATI for my exact same reasons, maybe reversed.

Pertaining your specific question this post may help:



Answer:



or if you want an insanely complicated explanation I found surfing around:

Wow that was a really in-depth reply, thank you for taking the time to post that. Cool info as well!
post #4 of 4
Physx or something else , each of them has specific techniques.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards - General
Overclock.net › Forums › Graphics Cards › Graphics Cards - General › Whats the difference between ATI Cores and Nvidia Cores??