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GeForce 9800 GT 1GB vs GeForce 9800 GTX+

Intro

The GeForce 9800 GT 1GB makes use of a 65/55 nm design. nVidia has clocked the core speed at 600 MHz. The GDDR3 memory runs at a speed of 900 MHz on this particular card. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare all of that to the GeForce 9800 GTX+, which has core clock 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 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB 105 Watts
GeForce 9800 GTX+ 145 Watts
Difference: 40 Watts (38%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX+ is 22% faster than the GeForce 9800 GT 1GB overall, because of its greater bandwidth. (explain)

GeForce 9800 GTX+ 70400 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 12800 (22%)

Texel Rate

The GeForce 9800 GTX+ will be quite a bit (about 41%) faster with regards to texture filtering than the GeForce 9800 GT 1GB. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
GeForce 9800 GT 1GB 33600 Mtexels/sec
Difference: 13632 (41%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 9800 GTX+ is superior to the GeForce 9800 GT 1GB, by far. (explain)

GeForce 9800 GTX+ 11808 Mpixels/sec
GeForce 9800 GT 1GB 9600 Mpixels/sec
Difference: 2208 (23%)

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 GT 1GB

Amazon.com

Check prices at:

GeForce 9800 GTX+

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 GT 1GB GeForce 9800 GTX+
Manufacturer nVidia nVidia
Year July 2008 July 2008
Code Name G92a/b G92b
Memory 1024 MB 512 MB
Core Speed 600 MHz 738 MHz
Memory Speed 1800 MHz 2200 MHz
Power (Max TDP) 105 watts 145 watts
Bandwidth 57600 MB/sec 70400 MB/sec
Texel Rate 33600 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 112 128
Texture Mapping Units 56 64
Render Output Units 16 16
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit
Fab Process 65/55 nm 55 nm
Transistors 754 million 754 million
Bus PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. 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 many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 9800 GT 1GB

Amazon.com

Check prices at:

GeForce 9800 GTX+

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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