GeForce 9800 GTX+ vs GeForce GTS 450

Intro

Compare that to the GeForce GTS 450, which makes use of a 40 nm design. nVidia has set the core frequency at 783 MHz. The GDDR5 RAM is set to run at a speed of 902 MHz on this particular card. It features 192 SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

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

The GeForce 9800 GTX+ should in theory 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+ should be much (more or less 89%) faster with regards to texture filtering than the GeForce GTS 450. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTS 450 is the winner, but it probably won't make a huge difference. (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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant 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 maximum fill rate.