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GeForce 9500 GT 512MB GDDR3 vs Radeon HD 3470 512MB

Intro

The GeForce 9500 GT 512MB GDDR3 makes use of a 55 nm design. nVidia has clocked the core speed at 550 MHz. The GDDR3 memory runs at a speed of 800 MHz on this specific model. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare all of that to the Radeon HD 3470 512MB, which comes with a core clock speed of 800 MHz and a GDDR3 memory speed of 950 MHz. It also uses a 128-bit memory bus, and makes use of a 55 nm design. It is comprised of 40(8x5) SPUs, 4 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 3470 512MB should in theory perform a small bit faster than the GeForce 9500 GT 512MB GDDR3 overall. (explain)

Radeon HD 3470 512MB 30400 MB/sec
GeForce 9500 GT 512MB GDDR3 25600 MB/sec
Difference: 4800 (19%)

Texel Rate

The GeForce 9500 GT 512MB GDDR3 should be much (about 175%) more effective at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

GeForce 9500 GT 512MB GDDR3 8800 Mtexels/sec
Radeon HD 3470 512MB 3200 Mtexels/sec
Difference: 5600 (175%)

Pixel Rate

The GeForce 9500 GT 512MB GDDR3 will be much (more or less 38%) faster with regards to anti-aliasing than the Radeon HD 3470 512MB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce 9500 GT 512MB GDDR3 4400 Mpixels/sec
Radeon HD 3470 512MB 3200 Mpixels/sec
Difference: 1200 (38%)

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 9500 GT 512MB GDDR3

Amazon.com

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Radeon HD 3470 512MB

Amazon.com

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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 9500 GT 512MB GDDR3 Radeon HD 3470 512MB
Manufacturer nVidia AMD
Year July 2008 2008
Code Name G96b RV620 PRO
Memory 512 MB 512 MB
Core Speed 550 MHz 800 MHz
Memory Speed 1600 MHz 1900 MHz
Power (Max TDP) 50 watts (Unknown) watts
Bandwidth 25600 MB/sec 30400 MB/sec
Texel Rate 8800 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 32 40(8x5)
Texture Mapping Units 16 4
Render Output Units 8 4
Bus Type GDDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 55 nm
Transistors 314 million (Unknown) million
Bus PCIe x16 2.0, PCI 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 data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum 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 video 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 number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 9500 GT 512MB GDDR3

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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