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GeForce 9800 GTX+ vs Radeon HD 3470 512MB

Intro

The GeForce 9800 GTX+ features core speeds of 738 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 3470 512MB, which has a core clock frequency of 800 MHz and a GDDR3 memory speed of 950 MHz. It also makes use of a 128-bit memory bus, and makes use of a 55 nm design. It is comprised of 40(8x5) SPUs, 4 TAUs, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce 9800 GTX+ should perform quite a bit 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+ should be a lot (approximately 1376%) more effective at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 44032 (1376%)

Pixel Rate

The GeForce 9800 GTX+ is much (approximately 269%) faster with regards to full screen anti-aliasing than the Radeon HD 3470 512MB, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce 9800 GTX+ 11808 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 8608 (269%)

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 July 2008 2008
Code Name G92b RV620 PRO
Memory 512 MB 512 MB
Core Speed 738 MHz 800 MHz
Memory Speed 2200 MHz 1900 MHz
Power (Max TDP) 145 watts (Unknown) watts
Bandwidth 70400 MB/sec 30400 MB/sec
Texel Rate 47232 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 11808 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 55 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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the 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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