GeForce GT 220 GDDR3 vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which features a core clock frequency of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also features a 256-bit bus, and uses a 14 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
Radeon RX 470		120 Watts
	Difference: 62 Watts (107%)

Memory Bandwidth

Performance-wise, the Radeon RX 470 should theoretically be quite a bit better than the GeForce GT 220 GDDR3 overall. (explain)

Radeon RX 470		211200 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 178816 (552%)

Texel Rate

The Radeon RX 470 is quite a bit (approximately 1085%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

Radeon RX 470		118528 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 108528 (1085%)

Pixel Rate

The Radeon RX 470 will be quite a bit (approximately 493%) more effective at AA than the GeForce GT 220 GDDR3, and able to handle higher screen resolutions better. (explain)

Radeon RX 470		29632 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 24632 (493%)

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 max amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.