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GeForce 8800 GT 512MB vs Radeon HD 5670

Intro

The GeForce 8800 GT 512MB comes with a clock speed of 600 MHz and a GDDR3 memory speed of 900 MHz. It also features a 256-bit bus, and uses a 65 nm design. It is made up of 112 SPUs, 56 TAUs, and 16 ROPs.

Compare those specs to the Radeon HD 5670, which has a clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It features 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
GeForce 8800 GT 512MB 105 Watts
Difference: 44 Watts (72%)

Memory Bandwidth

The Radeon HD 5670, in theory, should be a small bit faster than the GeForce 8800 GT 512MB overall. (explain)

Radeon HD 5670 64000 MB/sec
GeForce 8800 GT 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 8800 GT 512MB will be a lot (more or less 117%) better at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce 8800 GT 512MB 33600 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 18100 (117%)

Pixel Rate

The GeForce 8800 GT 512MB should be quite a bit (approximately 55%) more effective at full screen anti-aliasing than the Radeon HD 5670, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce 8800 GT 512MB 9600 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 3400 (55%)

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

GeForce 8800 GT 512MB

Radeon HD 5670

Specifications

Display Specifications

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Model GeForce 8800 GT 512MB Radeon HD 5670
Manufacturer nVidia AMD
Year Oct 2007 January 14, 2010
Code Name G92 Redwood XT
Memory 512 MB 1024 MB
Core Speed 600 MHz 775 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 105 watts 61 watts
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 33600 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 112 400(80x5)
Texture Mapping Units 56 20
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 627 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 can be processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

GeForce 8800 GT 512MB

Radeon HD 5670

Comments

3 Responses to “GeForce 8800 GT 512MB vs Radeon HD 5670”
[NBA] GPU for Optiplex 745 PC - Budget 6k Max - Page 2 says:

[...] 49 Originally Posted by Ali Man Try to increase your budget a bit and get a 5670. bro where in the world is 5670 better then 8800gt or 4850??? not in texel rate not in the pixel rate, just bandwith wo bhi by small value GeForce 8800 GT 512MB vs Radeon HD 5670 – Performance Comparison Benchmarks @ Hardware Compare [...]

Orhan says:

Teşekkürler vok guzel. Super

Orhan says:

Cook tesekkur ederım

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