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GeForce 9800 GTX+ vs GeForce GTS 450

Intro

The GeForce 9800 GTX+ has a clock speed of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also features a 256-bit bus, and makes use of a 55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 ROPs.

Compare all of that to the GeForce GTS 450, which features clock speeds of 783 MHz on the GPU, and 902 MHz on the 512 MB of GDDR5 memory. It features 192 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

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

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

Texel Rate

The GeForce 9800 GTX+ is a lot (more or less 89%) better at anisotropic filtering 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 little bit (about 6%) better at FSAA than the GeForce 9800 GTX+, and also will be capable of handling higher screen resolutions while still performing well. (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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR 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 is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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

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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