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GeForce 8800 GT 512MB vs GeForce GTS 250 1GB


Intro

The GeForce 8800 GT 512MB makes use of a 65 nm design. nVidia has clocked the core frequency at 600 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this specific model. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GTS 250 1GB, which makes use of a 65/55 nm design. nVidia has clocked the core speed at 738 MHz. The GDDR3 memory works at a speed of 1100 MHz on this card. It features 128 SPUs along with 64 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB 105 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 40 Watts (38%)

Memory Bandwidth

As far as performance goes, the GeForce GTS 250 1GB should in theory be much better than the GeForce 8800 GT 512MB overall. (explain)

GeForce GTS 250 1GB 70400 MB/sec
GeForce 8800 GT 512MB 57600 MB/sec
Difference: 12800 (22%)

Texel Rate

The GeForce GTS 250 1GB will be much (more or less 41%) more effective at texture filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce 8800 GT 512MB 33600 Mtexels/sec
Difference: 13632 (41%)

Pixel Rate

The GeForce GTS 250 1GB is much (about 23%) faster with regards to AA than the GeForce 8800 GT 512MB, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTS 250 1GB 11808 Mpixels/sec
GeForce 8800 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 8800 GT 512MB

Amazon.com

GeForce GTS 250 1GB

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

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Model GeForce 8800 GT 512MB GeForce GTS 250 1GB
Manufacturer nVidia nVidia
Year Oct 2007 March 3, 2009
Code Name G92 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 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: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 512MB

Amazon.com

GeForce GTS 250 1GB

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.

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