Compare any two graphics cards:
VS

GeForce 8800 GTS (G80) 320MB vs Radeon HD 4850 2GB

Intro

The GeForce 8800 GTS (G80) 320MB features core clock speeds of 513 MHz on the GPU, and 792 MHz on the 320 MB of GDDR3 memory. It features 96 SPUs along with 48 Texture Address Units and 20 ROPs.

Compare those specs to the Radeon HD 4850 2GB, which features GPU core speed of 625 MHz, and 2048 MB of GDDR4 memory set to run at 993 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 2GB 110 Watts
GeForce 8800 GTS (G80) 320MB 143 Watts
Difference: 33 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4850 2GB should be 0% faster than the GeForce 8800 GTS (G80) 320MB in general, because of its greater bandwidth. (explain)

Radeon HD 4850 2GB 63552 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 192 (0%)

Texel Rate

The Radeon HD 4850 2GB is a small bit (about 2%) faster with regards to AF than the GeForce 8800 GTS (G80) 320MB. (explain)

Radeon HD 4850 2GB 25000 Mtexels/sec
GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Difference: 376 (2%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 8800 GTS (G80) 320MB is a better choice, but only just. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Radeon HD 4850 2GB 10000 Mpixels/sec
Difference: 260 (3%)

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) 320MB

Amazon.com

Check prices at:

Radeon HD 4850 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 GTS (G80) 320MB Radeon HD 4850 2GB
Manufacturer nVidia AMD
Year Feb 2007 Jun 25, 2008
Code Name G80 RV770 PRO
Memory 320 MB 2048 MB
Core Speed 513 MHz 625 MHz
Memory Speed 1584 MHz 1986 MHz
Power (Max TDP) 143 watts 110 watts
Bandwidth 63360 MB/sec 63552 MB/sec
Texel Rate 24624 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 96 800(160x5)
Texture Mapping Units 48 40
Render Output Units 20 16
Bus Type GDDR3 GDDR4
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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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 potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GTS (G80) 320MB

Amazon.com

Check prices at:

Radeon HD 4850 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