GeForce GT 1030 vs GeForce GTS 450

Intro

Compare those specs to the GeForce GTS 450, which comes with GPU core speed of 783 MHz, and 512 MB of GDDR5 memory set to run at 902 MHz through a 128-bit bus. It also features 192 SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
GeForce GTS 450		106 Watts
	Difference: 76 Watts (253%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 450 should be a bit faster than the GeForce GT 1030 in general. (explain)

GeForce GTS 450		57728 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 8576 (17%)

Texel Rate

The GeForce GT 1030 should be quite a bit (more or less 62%) more effective at AF than the GeForce GTS 450. (explain)

GeForce GT 1030		40480 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 15424 (62%)

Pixel Rate

The GeForce GT 1030 should be quite a bit (about 62%) more effective at full screen anti-aliasing than the GeForce GTS 450, and will be able to handle higher screen resolutions better. (explain)

GeForce GT 1030		20240 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 7712 (62%)

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 largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.