NVIDIA GeForce 7800 GTX Graphics Card Review Posted! - Page 2

SAMSAMHA · 11th Aug 2005, 02:23 AM

very nice review. Man, the card is just amazing. It seems like finally nvidia has gotten things straighten out. Although, they still need to work on their video/multimedia area.

NoFormz · 11th Aug 2005, 06:32 AM

I WANT IT!! ADRIAN. HOST A CONTEST NOW. HAHAHAHA...

Gj on the review. Btw, i'm quite confuse with the memory speed, the memory bandwidth and the core speed. Can someone explain them?

Chai · 11th Aug 2005, 07:56 PM

Actually, I meant to say removing Adrian's rep points by 1, because that will become 666.

He's a devil!

Adrian Wong · 11th Aug 2005, 08:44 PM

Quote:

Originally Posted by NoFormz

I WANT IT!! ADRIAN. HOST A CONTEST NOW. HAHAHAHA...

Gj on the review. Btw, i'm quite confuse with the memory speed, the memory bandwidth and the core speed. Can someone explain them?

Hmm.. What exactly are you confused about?

Adrian Wong · 11th Aug 2005, 08:47 PM

Quote:

Originally Posted by Chai

Actually, I meant to say removing Adrian's rep points by 1, because that will become 666.

He's a devil!

ROTFL!!

NoFormz · 11th Aug 2005, 11:58 PM

Well, can you explain them. I don't really know why there are so many types of speed.

Max_87 · 12th Aug 2005, 12:13 AM

Quote:

Originally Posted by Chai

Actually, I meant to say removing Adrian's rep points by 1, because that will become 666.

He's a devil!

LMAO!

Papercut · 12th Aug 2005, 12:16 AM

Think of a graphics card almost as a computer by itself. It has the GPU (graphics processing unit) and its own RAM. Just like your CPU speed (2GHz, etc.), the core speed refers to the frequency that the GPU runs at. And your system RAM has speeds like DDR400; it's exactly the same for graphics card RAM (that's the memory speed). Memory bandwidth refers to the amount of data that can...er... pass through the memory chips at any one time (hopefully someone can give you a better explanation). There is a formula to calculate memory bandwidth but it may be quite confusing.

Max_87 · 12th Aug 2005, 12:36 AM

Memory Bandwidth = Memory Bus Width / 8 * Effective Memory Speed

Adrian Wong · 12th Aug 2005, 12:50 AM

Quote:

Originally Posted by NoFormz

Well, can you explain them. I don't really know why there are so many types of speed.

There are only two speeds - GPU core speed and the memory speed.

In the 7800 GTX, the GPU speed is 430MHz while the memory speed is 600MHz.

Of course, since it's using GDDR3 memory, the effective speed is twice that (DDR). That's why we put it as 600MHz or 1.2GHz DDR.

11th Aug 2005, 06:32 AM	#12 (permalink)
NoFormz Warming up Join Date: 25 May 2005 Location: Malaysia Posts: 114 Reputation: 19 Rep Power: 5	I WANT IT!! ADRIAN. HOST A CONTEST NOW. HAHAHAHA... Gj on the review. Btw, i'm quite confuse with the memory speed, the memory bandwidth and the core speed. Can someone explain them? __________________

11th Aug 2005, 07:56 PM	#13 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 28,128 Reputation: 4649 Rep Power: 82	Actually, I meant to say removing Adrian's rep points by 1, because that will become 666. He's a devil! __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

11th Aug 2005, 11:58 PM	#16 (permalink)
NoFormz Warming up Join Date: 25 May 2005 Location: Malaysia Posts: 114 Reputation: 19 Rep Power: 5	Well, can you explain them. I don't really know why there are so many types of speed. __________________

12th Aug 2005, 12:16 AM	#18 (permalink)
Papercut Hold me back! I can't stop posting!!! Join Date: 14 Jul 2004 Location: Singapore! Posts: 5,124 Reputation: 2630 Rep Power: 37	Think of a graphics card almost as a computer by itself. It has the GPU (graphics processing unit) and its own RAM. Just like your CPU speed (2GHz, etc.), the core speed refers to the frequency that the GPU runs at. And your system RAM has speeds like DDR400; it's exactly the same for graphics card RAM (that's the memory speed). Memory bandwidth refers to the amount of data that can...er... pass through the memory chips at any one time (hopefully someone can give you a better explanation). There is a formula to calculate memory bandwidth but it may be quite confusing. __________________ "Use in a cool dry place away from direct sunlight. Keep out of reach of n00bs. Overclock within 24 hours of opening. Do not read instructions before proceeding, do not use only as directed. May cause frustration, late nights and empty wallets. If symptoms persist please consult your hardware professional."

12th Aug 2005, 12:36 AM	#19 (permalink)
Max_87 h@x! Join Date: 11 Aug 2003 Location: the land of bandwidth cap Posts: 11,446 Reputation: 2090 Rep Power: 38	Memory Bandwidth = Memory Bus Width / 8 * Effective Memory Speed __________________ Max_87 Tech ARP http://www.techarp.com Dell Studio 15 / P7350 / 3GB DDR2 / Radeon HD 3450 / 250GB 7200RPM / 15" @ 1920x1200 E8600 @ 4.4GHz 1.36v / Asus P5E3 Deluxe / 2x2GB DDR3 / Radeon X1800 / Barracuda 7200.9 120GB / 7200.10 320GB x2 / Caviar SE16 WD5000AAKS / WD6400AAKS x2 / Dell 2007FP x2 / Silverstone ST56F

11th Aug 2005, 02:23 AM	#11 (permalink)
SAMSAMHA Super Active Join Date: 13 Oct 2004 Posts: 2,356 Reputation: 197 Rep Power: 9	very nice review. Man, the card is just amazing. It seems like finally nvidia has gotten things straighten out. Although, they still need to work on their video/multimedia area.

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