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GeForce 9800 GT 512MB vs GeForce GTS 250 1GB

Intro

The GeForce 9800 GT 512MB comes with a clock speed of 600 MHz and a GDDR3 memory speed of 900 MHz. It also features a 256-bit memory bus, and makes use of a 65/55 nm design. It is comprised of 112 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the GeForce GTS 250 1GB, which comes with a GPU core clock speed of 738 MHz, and 1024 MB of GDDR3 memory running at 1100 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB 105 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 40 Watts (38%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 1GB will be 22% quicker than the GeForce 9800 GT 512MB overall, because of its higher bandwidth. (explain)

GeForce GTS 250 1GB 70400 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 12800 (22%)

Texel Rate

The GeForce GTS 250 1GB should be a lot (about 41%) better at anisotropic filtering than the GeForce 9800 GT 512MB. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce 9800 GT 512MB 33600 Mtexels/sec
Difference: 13632 (41%)

Pixel Rate

The GeForce GTS 250 1GB will be quite a bit (more or less 23%) better at AA than the GeForce 9800 GT 512MB, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTS 250 1GB 11808 Mpixels/sec
GeForce 9800 GT 512MB 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 512MB

Amazon.com

Check prices at:

GeForce GTS 250 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.

Specifications

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Model GeForce 9800 GT 512MB GeForce GTS 250 1GB
Manufacturer nVidia nVidia
Year July 2008 March 3, 2009
Code Name G92a/b G92a/b
Memory 512 MB 1024 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 65/55 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 3.1

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, 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 is calculated by multiplying the total texture units of the card by the core 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 512MB

Amazon.com

Check prices at:

GeForce GTS 250 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.

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