Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 8800 Ultra vs Radeon HD 4790

Intro

The GeForce 8800 Ultra features a core clock frequency of 612 MHz and a GDDR3 memory speed of 1080 MHz. It also uses a 384-bit memory bus, and makes use of a 90 nm design. It is comprised of 128 SPUs, 64 TAUs, and 24 ROPs.

Compare all of that to the Radeon HD 4790, which has clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 RAM. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra should be a bit faster than the Radeon HD 4790 in general. (explain)

GeForce 8800 Ultra 103680 MB/sec
Radeon HD 4790 102400 MB/sec
Difference: 1280 (1%)

Texel Rate

The GeForce 8800 Ultra is a lot (about 104%) better at anisotropic filtering than the Radeon HD 4790. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
Radeon HD 4790 19200 Mtexels/sec
Difference: 19968 (104%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8800 Ultra is superior to the Radeon HD 4790, by far. (explain)

GeForce 8800 Ultra 14688 Mpixels/sec
Radeon HD 4790 9600 Mpixels/sec
Difference: 5088 (53%)

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 4790

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 4790
Manufacturer nVidia AMD
Year May 2007 2009
Code Name G80 RV790
Memory 768 MB 512 MB
Core Speed 612 MHz 600 MHz
Memory Speed 2160 MHz 3200 MHz
Power (Max TDP) 171 watts (Unknown) watts
Bandwidth 103680 MB/sec 102400 MB/sec
Texel Rate 39168 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 9600 Mpixels/sec
Unified Shaders 128 640(128x5)
Texture Mapping Units 64 32
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-bit 256-bit
Fab Process 90 nm 55 nm
Transistors 681 million 959 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the 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 4790

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