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 comes with a GPU core clock speed of 612 MHz, and the 768 MB of GDDR3 memory runs at 1080 MHz through a 384-bit bus. It also features 128 SPUs, 64 TAUs, and 24 ROPs.

Compare those specs to the Radeon HD 6790, which uses a 40 nm design. AMD has set the core frequency at 840 MHz. The GDDR5 RAM works at a speed of 1050 MHz on this specific card. It features 800 SPUs as well as 40 TAUs 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

The Radeon HD 6790 should in theory be quite a bit faster than the GeForce 8800 Ultra in general. (explain)

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

Texel Rate

The GeForce 8800 Ultra should be a bit (about 17%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 8800 Ultra is a better choice, though not by far. (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 information (measured in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to 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