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GeForce 9800 GTX+ vs GeForce GTS 450

Intro

The GeForce 9800 GTX+ features a GPU clock speed of 738 MHz, and the 512 MB of GDDR3 RAM runs at 1100 MHz through a 256-bit bus. It also features 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the GeForce GTS 450, which has GPU clock speed of 783 MHz, and 512 MB of GDDR5 RAM set to run at 902 MHz through a 128-bit bus. It also features 192 Stream Processors, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 106 Watts
GeForce 9800 GTX+ 145 Watts
Difference: 39 Watts (37%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX+ will be 22% quicker than the GeForce GTS 450 in general, due to its higher data rate. (explain)

GeForce 9800 GTX+ 70400 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 12672 (22%)

Texel Rate

The GeForce 9800 GTX+ is quite a bit (approximately 89%) faster with regards to AF than the GeForce GTS 450. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
GeForce GTS 450 25056 Mtexels/sec
Difference: 22176 (89%)

Pixel Rate

The GeForce GTS 450 should be a small bit (about 6%) better at FSAA than the GeForce 9800 GTX+, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTS 450 12528 Mpixels/sec
GeForce 9800 GTX+ 11808 Mpixels/sec
Difference: 720 (6%)

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 GTX+

Amazon.com

Check prices at:

GeForce GTS 450

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 GTX+ GeForce GTS 450
Manufacturer nVidia nVidia
Year July 2008 September 2010
Code Name G92b GF106
Memory 512 MB 512 MB
Core Speed 738 MHz 783 MHz
Memory Speed 2200 MHz 3608 MHz
Power (Max TDP) 145 watts 106 watts
Bandwidth 70400 MB/sec 57728 MB/sec
Texel Rate 47232 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 128 192
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 texture map elements (texels) that are processed in one second. This is worked out 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 number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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 memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 9800 GTX+

Amazon.com

Check prices at:

GeForce GTS 450

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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