Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 8800 Ultra vs Radeon HD 4870 2GB

Intro

The GeForce 8800 Ultra makes use of a 90 nm design. nVidia has set the core speed at 612 MHz. The GDDR3 RAM works at a frequency of 1080 MHz on this specific model. It features 128 SPUs as well as 64 Texture Address Units and 24 ROPs.

Compare those specs to the Radeon HD 4870 2GB, which comes with a core clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It features 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4870 2GB 150 Watts
GeForce 8800 Ultra 171 Watts
Difference: 21 Watts (14%)

Memory Bandwidth

In theory, the Radeon HD 4870 2GB is 11% quicker than the GeForce 8800 Ultra in general, because of its greater data rate. (explain)

Radeon HD 4870 2GB 115200 MB/sec
GeForce 8800 Ultra 103680 MB/sec
Difference: 11520 (11%)

Texel Rate

The GeForce 8800 Ultra should be much (approximately 31%) better at AF than the Radeon HD 4870 2GB. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
Radeon HD 4870 2GB 30000 Mtexels/sec
Difference: 9168 (31%)

Pixel Rate

The GeForce 8800 Ultra is quite a bit (approximately 22%) better at full screen anti-aliasing than the Radeon HD 4870 2GB, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce 8800 Ultra 14688 Mpixels/sec
Radeon HD 4870 2GB 12000 Mpixels/sec
Difference: 2688 (22%)

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 4870 2GB

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 4870 2GB
Manufacturer nVidia AMD
Year May 2007 Jun 25, 2008
Code Name G80 RV770 XT
Memory 768 MB 2048 MB
Core Speed 612 MHz 750 MHz
Memory Speed 2160 MHz 3600 MHz
Power (Max TDP) 171 watts 150 watts
Bandwidth 103680 MB/sec 115200 MB/sec
Texel Rate 39168 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 128 800(160x5)
Texture Mapping Units 64 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-bit 256-bit
Fab Process 90 nm 55 nm
Transistors 681 million 956 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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 Ultra

Amazon.com

Check prices at:

Radeon HD 4870 2GB

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