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GeForce 9500 GT 1GB GDDR3 vs Radeon HD 3690/3830

Intro

The GeForce 9500 GT 1GB GDDR3 features clock speeds of 550 MHz on the GPU, and 800 MHz on the 1024 MB of GDDR3 RAM. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare all of that to the Radeon HD 3690/3830, which makes use of a 55 nm design. AMD has set the core frequency at 668 MHz. The GDDR3 RAM runs at a frequency of 828 MHz on this card. It features 320(64x5) SPUs along with 16 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3 50 Watts
Radeon HD 3690/3830 75 Watts
Difference: 25 Watts (50%)

Memory Bandwidth

Performance-wise, the Radeon HD 3690/3830 should in theory be just a bit superior to the GeForce 9500 GT 1GB GDDR3 overall. (explain)

Radeon HD 3690/3830 26496 MB/sec
GeForce 9500 GT 1GB GDDR3 25600 MB/sec
Difference: 896 (4%)

Texel Rate

The Radeon HD 3690/3830 is a lot (more or less 21%) more effective at AF than the GeForce 9500 GT 1GB GDDR3. (explain)

Radeon HD 3690/3830 10688 Mtexels/sec
GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
Difference: 1888 (21%)

Pixel Rate

The Radeon HD 3690/3830 will be quite a bit (more or less 143%) better at anti-aliasing than the GeForce 9500 GT 1GB GDDR3, and should be able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 3690/3830 10688 Mpixels/sec
GeForce 9500 GT 1GB GDDR3 4400 Mpixels/sec
Difference: 6288 (143%)

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 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 3690/3830

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 9500 GT 1GB GDDR3 Radeon HD 3690/3830
Manufacturer nVidia AMD
Year July 2008 2008
Code Name G96b RV670 PRO
Memory 1024 MB 256 MB
Core Speed 550 MHz 668 MHz
Memory Speed 1600 MHz 1656 MHz
Power (Max TDP) 50 watts 75 watts
Bandwidth 25600 MB/sec 26496 MB/sec
Texel Rate 8800 Mtexels/sec 10688 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 10688 Mpixels/sec
Unified Shaders 32 320(64x5)
Texture Mapping Units 16 16
Render Output Units 8 16
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: Bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the 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 the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 9500 GT 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 3690/3830

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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