GeForce GT 430 1GB vs Radeon R9 390X 8G

Intro

Compare all of that to the Radeon R9 390X 8G, which uses a 28 nm design. AMD has set the core frequency at 1050 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this model. It features 2816 SPUs as well as 176 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 215 Watts (358%)

Memory Bandwidth

As far as performance goes, the Radeon R9 390X 8G should theoretically be quite a bit better than the GeForce GT 430 1GB in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 355200 (1233%)

Texel Rate

The Radeon R9 390X 8G is quite a bit (more or less 1550%) better at anisotropic filtering than the GeForce GT 430 1GB. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 173600 (1550%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 390X 8G is the winner, by a large margin. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 64400 (2300%)

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 largest amount of data (measured in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.