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GeForce 9500 GT DDR2 vs GeForce GTX 260

Intro

The GeForce 9500 GT DDR2 uses a 65 nm design. nVidia has set the core speed at 550 MHz. The DDR2 memory is set to run at a speed of 500 MHz on this model. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare those specs to the GeForce GTX 260, which has a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also uses a 448-bit bus, and uses a 65 nm design. It is comprised of 192 SPUs, 64 TAUs, and 28 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
GeForce GTX 260 182 Watts
Difference: 132 Watts (264%)

Memory Bandwidth

In theory, the GeForce GTX 260 should be quite a bit faster than the GeForce 9500 GT DDR2 overall. (explain)

GeForce GTX 260 111888 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 95888 (599%)

Texel Rate

The GeForce GTX 260 is quite a bit (about 319%) better at anisotropic filtering than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 260 36864 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 28064 (319%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 260 is the winner, and very much so. (explain)

GeForce GTX 260 16128 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 11728 (267%)

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 9500 GT DDR2

Amazon.com

GeForce GTX 260

Amazon.com

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

Model GeForce 9500 GT DDR2 GeForce GTX 260
Manufacturer nVidia nVidia
Year July 2008 June 16, 2008
Code Name G96a G200
Fab Process 65 nm 65 nm
Bus PCIe x16 2.0, PCI PCIe x16 2.0
Memory 256 MB 896 MB
Core Speed 550 MHz 576 MHz
Shader Speed 1400 MHz 1242 MHz
Memory Speed 500 MHz (1000 MHz effective) 999 MHz (1998 MHz effective)
Unified Shaders 32 192
Texture Mapping Units 16 64
Render Output Units 8 28
Bus Type DDR2 GDDR3
Bus Width 128-bit 448-bit
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1
Power (Max TDP) 50 watts 182 watts
Shader Model 4.0 4.0
Bandwidth 16000 MB/sec 111888 MB/sec
Texel Rate 8800 Mtexels/sec 36864 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 16128 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

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