GeForce 9800 GT 1GB vs GeForce GTS 450

Intro

Compare those specifications to the GeForce GTS 450, which has a GPU core clock speed of 783 MHz, and 512 MB of GDDR5 RAM running at 902 MHz through a 128-bit bus. It also is comprised of 192 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the GeForce GTS 450 should perform a bit faster than the GeForce 9800 GT 1GB in general. (explain)

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

Texel Rate

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

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

Pixel Rate

The GeForce GTS 450 is quite a bit (more or less 31%) faster with regards to anti-aliasing than the GeForce 9800 GT 1GB, and also capable of handling higher resolutions better. (explain)

GeForce GTS 450		12528 Mpixels/sec
GeForce 9800 GT 1GB		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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core 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 also depends 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 max fill rate.