Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 8800 GTX vs GeForce 8800 Ultra


Intro

The GeForce 8800 GTX comes with a clock frequency of 575 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 384-bit memory bus, and uses a 90 nm design. It features 128 SPUs, 64 Texture Address Units, and 24 Raster Operation Units.

Compare all that to the GeForce 8800 Ultra, which features a core clock speed of 612 MHz and a GDDR3 memory frequency of 1080 MHz. It also uses a 384-bit bus, and makes use of a 90 nm design. It is made up of 128 SPUs, 64 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTX 155 Watts
GeForce 8800 Ultra 171 Watts
Difference: 16 Watts (10%)

Memory Bandwidth

Performance-wise, the GeForce 8800 Ultra should theoretically be a small bit superior to the GeForce 8800 GTX in general. (explain)

GeForce 8800 Ultra 103680 MB/sec
GeForce 8800 GTX 86400 MB/sec
Difference: 17280 (20%)

Texel Rate

The GeForce 8800 Ultra is a bit (approximately 6%) better at anisotropic filtering than the GeForce 8800 GTX. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
GeForce 8800 GTX 36800 Mtexels/sec
Difference: 2368 (6%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 8800 Ultra is superior to the GeForce 8800 GTX, not by a very large margin though. (explain)

GeForce 8800 Ultra 14688 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 888 (6%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

GeForce 8800 GTX

GeForce 8800 Ultra

Specifications

Display Specifications

Hide Specifications

Model GeForce 8800 GTX GeForce 8800 Ultra
Manufacturer nVidia nVidia
Year Nov 2006 May 2007
Code Name G80 G80
Memory 768 MB 768 MB
Core Speed 575 MHz 612 MHz
Memory Speed 1800 MHz 2160 MHz
Power (Max TDP) 155 watts 171 watts
Bandwidth 86400 MB/sec 103680 MB/sec
Texel Rate 36800 Mtexels/sec 39168 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 14688 Mpixels/sec
Unified Shaders 128 128
Texture Mapping Units 64 64
Render Output Units 24 24
Bus Type GDDR3 GDDR3
Bus Width 384-bit 384-bit
Fab Process 90 nm 90 nm
Transistors 681 million 681 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

GeForce 8800 GTX

GeForce 8800 Ultra

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti-Spam by WP-SpamShield


[X]
[X]