Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 8800 Ultra vs Radeon HD 6790

Intro

The GeForce 8800 Ultra features a clock frequency of 612 MHz and a GDDR3 memory frequency of 1080 MHz. It also uses a 384-bit memory bus, and makes use of a 90 nm design. It is made up of 128 SPUs, 64 Texture Address Units, and 24 Raster Operation Units.

Compare those specifications to the Radeon HD 6790, which has clock speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790 150 Watts
GeForce 8800 Ultra 171 Watts
Difference: 21 Watts (14%)

Memory Bandwidth

In theory, the Radeon HD 6790 should be much faster than the GeForce 8800 Ultra overall. (explain)

Radeon HD 6790 134400 MB/sec
GeForce 8800 Ultra 103680 MB/sec
Difference: 30720 (30%)

Texel Rate

The GeForce 8800 Ultra will be a small bit (about 17%) better at texture filtering than the Radeon HD 6790. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 5568 (17%)

Pixel Rate

The GeForce 8800 Ultra is a little bit (about 9%) better at full screen anti-aliasing than the Radeon HD 6790, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce 8800 Ultra 14688 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 1248 (9%)

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

Display Prices

Hide Prices

GeForce 8800 Ultra

Amazon.com

Check prices at:

Radeon HD 6790

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model GeForce 8800 Ultra Radeon HD 6790
Manufacturer nVidia AMD
Year May 2007 April 2011
Code Name G80 Barts LE
Memory 768 MB 1024 MB
Core Speed 612 MHz 840 MHz
Memory Speed 2160 MHz 4200 MHz
Power (Max TDP) 171 watts 150 watts
Bandwidth 103680 MB/sec 134400 MB/sec
Texel Rate 39168 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 128 800
Texture Mapping Units 64 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-bit 256-bit
Fab Process 90 nm 40 nm
Transistors 681 million 1700 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 Ultra

Amazon.com

Check prices at:

Radeon HD 6790

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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