GeForce GT 1030 vs GeForce GTS 450 1GB

Intro

Compare that to the GeForce GTS 450 1GB, which comes with a clock frequency of 783 MHz and a GDDR5 memory frequency of 902 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It features 192 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 76 Watts (253%)

Memory Bandwidth

In theory, the GeForce GTS 450 1GB should be just a bit faster than the GeForce GT 1030 in general. (explain)

GeForce GTS 450 1GB		57728 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 8576 (17%)

Texel Rate

The GeForce GT 1030 should be a lot (more or less 62%) better at AF than the GeForce GTS 450 1GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 15424 (62%)

Pixel Rate

The GeForce GT 1030 is quite a bit (about 62%) faster with regards to full screen anti-aliasing than the GeForce GTS 450 1GB, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GT 1030		20240 Mpixels/sec
GeForce GTS 450 1GB		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 max amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure 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 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 get to the maximum fill rate.