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GeForce 9800 GTX vs Radeon HD 3470 512MB

Intro

The GeForce 9800 GTX comes with a core clock speed of 675 MHz and a GDDR3 memory speed of 1100 MHz. It also features a 256-bit memory bus, and uses a 65 nm design. It features 128 SPUs, 64 TAUs, and 16 ROPs.

Compare those specs to the Radeon HD 3470 512MB, which comes with clock speeds of 800 MHz on the GPU, and 950 MHz on the 512 MB of GDDR3 memory. It features 40(8x5) SPUs along with 4 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX should perform a lot faster than the Radeon HD 3470 512MB overall. (explain)

GeForce 9800 GTX 70400 MB/sec
Radeon HD 3470 512MB 30400 MB/sec
Difference: 40000 (132%)

Texel Rate

The GeForce 9800 GTX is a lot (about 1250%) better at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

GeForce 9800 GTX 43200 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 40000 (1250%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 9800 GTX is superior to the Radeon HD 3470 512MB, by a large margin. (explain)

GeForce 9800 GTX 10800 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 7600 (238%)

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

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GeForce 9800 GTX

Amazon.com

Check prices at:

Radeon HD 3470 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

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Model GeForce 9800 GTX Radeon HD 3470 512MB
Manufacturer nVidia AMD
Year April 2008 2008
Code Name G92 RV620 PRO
Memory 512 MB 512 MB
Core Speed 675 MHz 800 MHz
Memory Speed 2200 MHz 1900 MHz
Power (Max TDP) 140 watts (Unknown) watts
Bandwidth 70400 MB/sec 30400 MB/sec
Texel Rate 43200 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 128 40(8x5)
Texture Mapping Units 64 4
Render Output Units 16 4
Bus Type GDDR3 GDDR3
Bus Width 256-bit 128-bit
Fab Process 65 nm 55 nm
Transistors 754 million (Unknown) million
Bus PCIe x16 2.0 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 max amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GTX

Amazon.com

Check prices at:

Radeon HD 3470 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.

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