NVIDIA GeForce 7800 GT vs Point of View GeForce 6800 Ultra AGP

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NVIDIA GeForce 7800 GT vs Point of View GeForce 6800 Ultra AGP

Theoretical performance comparison

Real-world game, 3D graphics and compute performance depends on several vital graphics card parameters, including texture fillrate, pixel fillrate, memory bandwidth, single- and double-precision performance. Below we explain why these characteristics are important and which card has better specs.

Pixel fill rate (gigapixels/s)

6.4

4.8

3.2

1.6

6.4

6.8

Higher is better

Because both graphics cards have the same number of ROPs and the GeForce 6800 Ultra AGP operates at higher frequency, its pixel fillrate is higher. Better maximum pixel fill rate allows more pixels to be drawn on screen per second, and is an indication of better graphics card performance, unless there are bottlenecks somewhere else.

- NVIDIA GeForce 7800 GT

- Point of View GeForce 6800 Ultra AGP

Texture fill rate (gigatexels/s)

7.2

5.4

3.6

1.8

6.8

Higher is better

Although it has lower graphics clock, the NVIDIA GeForce 7800 GT GPU comes with more Texture Mapping Units (TMUs), which results in higher texture fill rate. Better texture fill rate means that the graphics card can apply more textures and/or utilize more complex 3D effects for each texel, which improves games visual appearance.

Vertex Fill rate (gigavertices/s)

0.8

0.64

0.48

0.32

0.16

0.7

0.64

Higher is better

Memory bandwidth (GB/s)

35.2

Higher is better

Memory bandwidth parameter tells how much memory (in Gigabytes) the GPU can read from or write to dedicated memory per second. GPUs with higher memory bandwidth have better performance at high display resolutions, or when using large and detailed textures, and/or utilizing complex 3D effects and filters, like anti-aliasing. The bandwidth is dependent on memory type, speed, and memory interface width. Specifically, the Point of View GeForce 6800 Ultra AGP has higher clocked memory. Consequently, it has more memory bandwidth.

- NVIDIA GeForce 7800 GT

- Point of View GeForce 6800 Ultra AGP

Specs comparison

All rows with different specifications or features are highlighted.


General information
Market segment	Desktop
Manufacturer	NVIDIA	Point of View
Model	GeForce 7800 GT	GeForce 6800 Ultra AGP
Based on	N/A	NVIDIA GeForce 6800 Ultra AGP
Architecture / Interface
Die name
Architecture
Fabrication process
Bus interface
Cores / shaders
ROPs
Pixel shader processors
Pixel fill rate
Vertex shader processors
Vertex Fill rate
Texture units
Texture fill rate
Clocks / Memory
Graphics clock	400 MHz	425 MHz
Memory size	256 MB
Memory type	GDDR3
Memory clock
Memory interface width
Memory bandwidth
Other features
Maximum SLI options