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 memory works at a frequency of 1080 MHz on this particular card. It features 128 SPUs as well as 64 Texture Address Units and 24 ROPs.

Compare that to the Radeon HD 4870 2GB, which makes use of a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR5 RAM is set to run at a speed of 900 MHz on this particular model. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

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

Performance-wise, the Radeon HD 4870 2GB should theoretically be a bit superior to the GeForce 8800 Ultra overall. (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 a lot (approximately 31%) more effective at anisotropic filtering 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

If running with a high resolution is important to you, then the GeForce 8800 Ultra is superior to the Radeon HD 4870 2GB, by far. (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 largest amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the 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 most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum 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