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GeForce 9800 GTX+ vs GeForce GTS 450 1GB

Intro

The GeForce 9800 GTX+ comes with core clock speeds of 738 MHz on the GPU, and 1100 MHz on the 512 MB of GDDR3 memory. It features 128 SPUs as well as 64 Texture Address Units and 16 ROPs.

Compare all of that to the GeForce GTS 450 1GB, which comes with GPU clock speed of 783 MHz, and 1024 MB of GDDR5 RAM set to run at 902 MHz through a 128-bit bus. It also is made up of 192 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB 106 Watts
GeForce 9800 GTX+ 145 Watts
Difference: 39 Watts (37%)

Memory Bandwidth

In theory, the GeForce 9800 GTX+ should perform quite a bit faster than the GeForce GTS 450 1GB overall. (explain)

GeForce 9800 GTX+ 70400 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 12672 (22%)

Texel Rate

The GeForce 9800 GTX+ will be a lot (approximately 89%) better at AF than the GeForce GTS 450 1GB. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 22176 (89%)

Pixel Rate

The GeForce GTS 450 1GB will be a bit (approximately 6%) faster with regards to full screen anti-aliasing than the GeForce 9800 GTX+, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTS 450 1GB 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 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 GTX+ GeForce GTS 450 1GB
Manufacturer nVidia nVidia
Year July 2008 September 2010
Code Name G92b GF106
Memory 512 MB 1024 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 maximum amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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

Display Prices

Hide Prices

GeForce 9800 GTX+

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.

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