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Going first base with the GPUs

To properly understand the technology in this Galaxy GeForce 7900GT Dual Core card we must first understand what kind of specifications the reference GeForce 7900 GT has and what the cores and memory of this product are clocked on. We need to compare.

A little 101 on the GeForce 7900 GT graphics processor. Back in March 2006 NVIDIA launched a new very price competitive videocard at 300 USD. A G71 graphics core based product, the GeForce 7900 GT. This is the slower version of big daddy GTX. This product has the very same pixel pipelines and vertex processors as the GTX, in fact it's 100% the same chip yet it's clocked significantly slower at 450 MHz and is equipped with gDDR3 memory running at 1320 MHz (2x 660 MHz). The framebuffer also went down towards 256 MB. Now if you look at the chart on this page you'll notice that the MasterPiece product is clocked significantly faster, in fact it is almost running at GTX speeds.
So here we have a solution that offers an incredible amount of bang for your bucks.

The Galaxy GeForce 7900GT Dual Core product has two of these GPU's each linked towards 512MB of memory. The clocks however are much faster as the 7900 GT GPU's are clocked at 607 MHz on it's core and the card comes with 2x 512MB gDDR3 memory clocked at 1520 MHz. Difficult to position and understand ?

Hey luckily for you you're on Guru3D.com, we just love to explain. Let's have a look at the some product specifications and compare them to understand where the differences are to be found.

		NVIDIA GeForce 6 & 7 Product Lineup Specifications

Product Name

# pixel processors

# vertex processors

Bus width

Memory Type/Amount

GPU Speed

RAM Speed

GeForce 7950 GX2 24(x2) 8x2 256-bit GDDR3/512MB (x2) 500MHz 1200 MHzGeForce 7900 GTX 24 8 256-bit GDDR3/512MB 650MHz 1600 MHz Galaxy 7900 GT MP 24(x2) 8x2 256-bit GDDR3/512MB (x2) 607MHz 1520 MHzGeForce 7950 GT 24 8 256-bit GDDR3/512MB 550MHz 1400 MHzGeForce 7900 GT 24 8 256-bit GDDR3/256MB 450MHz 1320 MHzGeForce 7900 GS 20 7 256-bit GDDR3/256MB 450MHz 1320 MHzGeForce 7800 GTX 24 8 256-bit GDDR3/512MB 560MHz 1600 MHzGeForce 7800 GTX 24 8 256-bit GDDR3/256MB 430MHz 1200MHzGeForce 7800 GT 20 7 256-bit GDDR3/256MB 400MHz 1000MHzGeForce 7800 GS 16 6 256-bit GDDR3/256MB 375MHz 1200MHzGeForce 7600 GT 12 5 128-bit GDDR3/256MB 560MHz 1400MHzGeForce 7600 GS 12 5 128-bit GDDR2/256MB 500MHz 1400MHzGeForce 7600 GS 12 5 128-bit GDDR2/256MB 400MHz 800MHz

GeForce 6800 Ultra

16

6

256-bit

GDDR3/256MB

400MHz

1100MHz

GeForce 6800 GT

16

6

256-bit

GDDR3/256MB

350MHz

1000MHz

GeForce 6800 GS PCX 12 5 256-bit GDDR3/128/256MB 425MHz 1000MHzGeForce 6800 GS AGP 12 5 256-bit GDDR3/128/256MB 350MHz 1000MHz

GeForce 6800

12

5

256-bit

GDDR/128MB

325MHz

700MHz

GeForce 6800 LE

8

4

256-bit

GDDR/128MB

320MHz

700MHz

GeForce 6600 GT 8 3 128-bit GDDR3/128/256MB 500MHz 1000MHzGeForce 6600 8 3 128-bit GDDR/128MB 300MHz 275(550)GeForce 6200 4 3 64/128-bit GDDR/128MB/256MB 300MHz 275(550)

Now if you look at the chart above you'll notice that the Galaxy GeForce 7900GT Dual Core is a very beefed up product. If you look at the clocks of a single core it places itself above the all new 7950 GT product yet slightly below the 7900 GTX, which is mighty impressive especially when you consider you have two cores at your disposal :)

Per graphic core:

• 8 Vertex Shading Units
• 24 Pixel pipelines
• 2x512MB 256-bit 1.4ns (8x32) GDDR3 Memory

Generic Functions

What you need to be comparing to the most is the 7900 GTX 512MB product .. times two. The cores each have 24 pixel shader processors, eight vertex units, 16 ROPS; in short, this is the 0.09 micron G71 graphics core (times two).