Compare any two graphics cards:
VS

GeForce 8800 GT 512MB vs Radeon HD 6770

Intro

The GeForce 8800 GT 512MB has core speeds of 600 MHz on the GPU, and 900 MHz on the 512 MB of GDDR3 RAM. It features 112 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 6770, which makes use of a 40 nm design. AMD has set the core frequency at 900 MHz. The GDDR5 memory runs at a speed of 1050 MHz on this card. It features 800 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB 105 Watts
Radeon HD 6770 108 Watts
Difference: 3 Watts (3%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6770 should be 17% quicker than the GeForce 8800 GT 512MB overall, due to its greater bandwidth. (explain)

Radeon HD 6770 67200 MB/sec
GeForce 8800 GT 512MB 57600 MB/sec
Difference: 9600 (17%)

Texel Rate

The Radeon HD 6770 will be a little bit (more or less 7%) better at AF than the GeForce 8800 GT 512MB. (explain)

Radeon HD 6770 36000 Mtexels/sec
GeForce 8800 GT 512MB 33600 Mtexels/sec
Difference: 2400 (7%)

Pixel Rate

The Radeon HD 6770 should be quite a bit (more or less 50%) faster with regards to FSAA than the GeForce 8800 GT 512MB, and able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 6770 14400 Mpixels/sec
GeForce 8800 GT 512MB 9600 Mpixels/sec
Difference: 4800 (50%)

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 GT 512MB

Amazon.com

Check prices at:

Radeon HD 6770

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 GT 512MB Radeon HD 6770
Manufacturer nVidia AMD
Year Oct 2007 January 2011
Code Name G92 Juniper XT
Memory 512 MB 512 MB
Core Speed 600 MHz 900 MHz
Memory Speed 1800 MHz 4200 MHz
Power (Max TDP) 105 watts 108 watts
Bandwidth 57600 MB/sec 67200 MB/sec
Texel Rate 33600 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 112 800
Texture Mapping Units 56 40
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 1040 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 512MB

Amazon.com

Check prices at:

Radeon HD 6770

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