GeForce GT 450 (OEM) vs Radeon RX 570

Intro

Compare all of that to the Radeon RX 570, which has core clock speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
Radeon RX 570		150 Watts
	Difference: 44 Watts (42%)

Memory Bandwidth

In theory, the Radeon RX 570 is 139% faster than the GeForce GT 450 (OEM) in general, because of its greater data rate. (explain)

Radeon RX 570		229376 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 133376 (139%)

Texel Rate

The Radeon RX 570 should be quite a bit (approximately 689%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

Radeon RX 570		149504 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 130544 (689%)

Pixel Rate

The Radeon RX 570 will be much (about 97%) better at full screen anti-aliasing than the GeForce GT 450 (OEM), and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 570		37376 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 18416 (97%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 are processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, 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 most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.