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GeForce 9800 GT 1GB vs GeForce GTS 250 1GB

Intro

The GeForce 9800 GT 1GB features clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 RAM. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare all that to the GeForce GTS 250 1GB, which comes with core speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 RAM. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB 105 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 40 Watts (38%)

Memory Bandwidth

Performance-wise, the GeForce GTS 250 1GB should theoretically be quite a bit superior to the GeForce 9800 GT 1GB in general. (explain)

GeForce GTS 250 1GB 70400 MB/sec
GeForce 9800 GT 1GB 57600 MB/sec
Difference: 12800 (22%)

Texel Rate

The GeForce GTS 250 1GB will be quite a bit (more or less 41%) faster with regards to texture filtering than the GeForce 9800 GT 1GB. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce 9800 GT 1GB 33600 Mtexels/sec
Difference: 13632 (41%)

Pixel Rate

The GeForce GTS 250 1GB is quite a bit (more or less 23%) more effective at full screen anti-aliasing than the GeForce 9800 GT 1GB, and also should be capable of handling higher screen resolutions better. (explain)

GeForce GTS 250 1GB 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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 9800 GT 1GB

Amazon.com

Other US-based stores

Amazon.co.uk

Amazon.de

Amazon.fr

GeForce GTS 250 1GB

Amazon.com

Other US-based stores

Amazon.co.uk

Amazon.de

Amazon.fr

Specifications

Model GeForce 9800 GT 1GB GeForce GTS 250 1GB
Manufacturer nVidia nVidia
Year July 2008 March 3, 2009
Code Name G92a/b G92a/b
Fab Process 65/55 nm 65/55 nm
Bus PCIe x16 2.0 PCIe x16 2.0
Memory 1024 MB 1024 MB
Core Speed 600 MHz 738 MHz
Shader Speed 1500 MHz 1836 MHz
Memory Speed 900 MHz 1100 MHz
Unified Shaders 112 128
Texture Mapping Units 56 64
Render Output Units 16 16
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.1
Power (Max TDP) 105 watts 145 watts
Shader Model 4.0 4.0
Bandwidth 57600 MB/sec 70400 MB/sec
Texel Rate 33600 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 11808 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 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 amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

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