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GeForce 9500 GT DDR2 vs GeForce 9800 GT 1GB

Intro

The GeForce 9500 GT DDR2 comes with a clock speed of 550 MHz and a DDR2 memory frequency of 500 MHz. It also makes use of a 128-bit bus, and makes use of a 65 nm design. It features 32 SPUs, 16 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the GeForce 9800 GT 1GB, which makes use of a 65/55 nm design. nVidia has clocked the core frequency at 600 MHz. The GDDR3 RAM works at a speed of 900 MHz on this card. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
GeForce 9800 GT 1GB 105 Watts
Difference: 55 Watts (110%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GT 1GB should theoretically be a lot better than the GeForce 9500 GT DDR2 overall. (explain)

GeForce 9800 GT 1GB 57600 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 41600 (260%)

Texel Rate

The GeForce 9800 GT 1GB will be a lot (about 282%) faster with regards to AF than the GeForce 9500 GT DDR2. (explain)

GeForce 9800 GT 1GB 33600 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 24800 (282%)

Pixel Rate

The GeForce 9800 GT 1GB should be a lot (about 118%) faster with regards to FSAA than the GeForce 9500 GT DDR2, and able to handle higher screen resolutions more effectively. (explain)

GeForce 9800 GT 1GB 9600 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 5200 (118%)

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 DDR2

Amazon.com

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GeForce 9800 GT 1GB

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 DDR2 GeForce 9800 GT 1GB
Manufacturer nVidia nVidia
Year July 2008 July 2008
Code Name G96a G92a/b
Memory 256 MB 1024 MB
Core Speed 550 MHz 600 MHz
Memory Speed 1000 MHz 1800 MHz
Power (Max TDP) 50 watts 105 watts
Bandwidth 16000 MB/sec 57600 MB/sec
Texel Rate 8800 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 9600 Mpixels/sec
Unified Shaders 32 112
Texture Mapping Units 16 56
Render Output Units 8 16
Bus Type DDR2 GDDR3
Bus Width 128-bit 256-bit
Fab Process 65 nm 65/55 nm
Transistors 314 million 754 million
Bus PCIe x16 2.0, PCI PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is calculated 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 video 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 most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce 9500 GT DDR2

Amazon.com

Check prices at:

GeForce 9800 GT 1GB

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.

Comments

One Response to “GeForce 9500 GT DDR2 vs GeForce 9800 GT 1GB”
Aa says:

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