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GeForce 9800 GT 512MB vs GeForce GTS 450 1GB

Intro

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

Compare those specifications to the GeForce GTS 450 1GB, which comes with clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB 105 Watts
GeForce GTS 450 1GB 106 Watts
Difference: 1 Watts (1%)

Memory Bandwidth

As far as performance goes, the GeForce GTS 450 1GB should theoretically be a bit superior to the GeForce 9800 GT 512MB overall. (explain)

GeForce GTS 450 1GB 57728 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 128 (0%)

Texel Rate

The GeForce 9800 GT 512MB should be much (about 34%) more effective at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 8544 (34%)

Pixel Rate

The GeForce GTS 450 1GB will be much (about 31%) faster with regards to FSAA than the GeForce 9800 GT 512MB, and also will be capable of handling higher screen resolutions better. (explain)

GeForce GTS 450 1GB 12528 Mpixels/sec
GeForce 9800 GT 512MB 9600 Mpixels/sec
Difference: 2928 (31%)

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 450 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 450 1GB
Manufacturer nVidia nVidia
Year July 2008 September 2010
Code Name G92a/b GF106
Memory 512 MB 1024 MB
Core Speed 600 MHz 783 MHz
Memory Speed 1800 MHz 3608 MHz
Power (Max TDP) 105 watts 106 watts
Bandwidth 57600 MB/sec 57728 MB/sec
Texel Rate 33600 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 112 192
Texture Mapping Units 56 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 1170 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 applied per second. This number 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 512MB

Amazon.com

Check prices at:

GeForce GTS 450 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 9800 GT 512MB vs GeForce GTS 450 1GB”
aneh says:

lol compare

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