Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 8800 Ultra vs Radeon HD 4890 2GB

Intro

The GeForce 8800 Ultra uses a 90 nm design. nVidia has clocked the core speed at 612 MHz. The GDDR3 memory works at a speed of 1080 MHz on this particular card. It features 128 SPUs along with 64 TAUs and 24 ROPs.

Compare those specs to the Radeon HD 4890 2GB, which uses a 55 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory runs at a frequency of 975 MHz on this particular card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 Ultra 171 Watts
Radeon HD 4890 2GB 190 Watts
Difference: 19 Watts (11%)

Memory Bandwidth

The Radeon HD 4890 2GB should in theory be just a bit faster than the GeForce 8800 Ultra in general. (explain)

Radeon HD 4890 2GB 124800 MB/sec
GeForce 8800 Ultra 103680 MB/sec
Difference: 21120 (20%)

Texel Rate

The Radeon HD 4890 2GB should be just a bit (more or less 2%) faster with regards to texture filtering than the GeForce 8800 Ultra. (explain)

Radeon HD 4890 2GB 40000 Mtexels/sec
GeForce 8800 Ultra 39168 Mtexels/sec
Difference: 832 (2%)

Pixel Rate

The Radeon HD 4890 2GB is a small bit (more or less 9%) faster with regards to anti-aliasing than the GeForce 8800 Ultra, and should be capable of handling higher resolutions better. (explain)

Radeon HD 4890 2GB 16000 Mpixels/sec
GeForce 8800 Ultra 14688 Mpixels/sec
Difference: 1312 (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 4890 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 4890 2GB
Manufacturer nVidia AMD
Year May 2007 Apr 2, 2009
Code Name G80 RV790 XT
Memory 768 MB 2048 MB
Core Speed 612 MHz 1000 MHz
Memory Speed 2160 MHz 3900 MHz
Power (Max TDP) 171 watts 190 watts
Bandwidth 103680 MB/sec 124800 MB/sec
Texel Rate 39168 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 16000 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 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 maximum amount of data (in units of MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 texture map elements (texels) that are 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 the texel rate, 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 maximum number of pixels the graphics card 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 amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 4890 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