I get commissions for purchases made through links on this page. (more info)

Compare any two graphics cards:
VS

GeForce 8800 GTS (G80) 640MB vs Radeon HD 4830 512MB

Intro

The GeForce 8800 GTS (G80) 640MB has a core clock frequency of 513 MHz and a GDDR3 memory frequency of 792 MHz. It also features a 320-bit bus, and uses a 90 nm design. It is made up of 96 SPUs, 48 Texture Address Units, and 20 ROPs.

Compare all that to the Radeon HD 4830 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 575 MHz. The GDDR3 memory runs at a speed of 900 MHz on this model. It features 640(128x5) SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4830 512MB 95 Watts
GeForce 8800 GTS (G80) 640MB 143 Watts
Difference: 48 Watts (51%)

Memory Bandwidth

Performance-wise, the GeForce 8800 GTS (G80) 640MB should in theory be a small bit superior to the Radeon HD 4830 512MB in general. (explain)

GeForce 8800 GTS (G80) 640MB 63360 MB/sec
Radeon HD 4830 512MB 57600 MB/sec
Difference: 5760 (10%)

Texel Rate

The GeForce 8800 GTS (G80) 640MB is a lot (approximately 34%) faster with regards to texture filtering than the Radeon HD 4830 512MB. (explain)

GeForce 8800 GTS (G80) 640MB 24624 Mtexels/sec
Radeon HD 4830 512MB 18400 Mtexels/sec
Difference: 6224 (34%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 8800 GTS (G80) 640MB is the winner, but it probably won't make a huge difference. (explain)

GeForce 8800 GTS (G80) 640MB 10260 Mpixels/sec
Radeon HD 4830 512MB 9200 Mpixels/sec
Difference: 1060 (12%)

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 GTS (G80) 640MB

Amazon.com

Check prices at:

Radeon HD 4830 512MB

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 GTS (G80) 640MB Radeon HD 4830 512MB
Manufacturer nVidia AMD
Year Nov 2006 (640) Oct 21, 2008
Code Name G80 RV770 LE
Memory 640 MB 512 MB
Core Speed 513 MHz 575 MHz
Memory Speed 1584 MHz 1800 MHz
Power (Max TDP) 143 watts 95 watts
Bandwidth 63360 MB/sec 57600 MB/sec
Texel Rate 24624 Mtexels/sec 18400 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 96 640(128x5)
Texture Mapping Units 48 32
Render Output Units 20 16
Bus Type GDDR3 GDDR3
Bus Width 320-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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 640MB

Amazon.com

Check prices at:

Radeon HD 4830 512MB

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