GeForce GT 1030 vs Radeon HD 4830 1GB

Intro

Compare all of that to the Radeon HD 4830 1GB, which uses a 55 nm design. AMD has clocked the core frequency at 575 MHz. The GDDR4 memory is set to run at a frequency of 900 MHz on this particular card. It features 640(128x5) SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 4830 1GB		95 Watts
	Difference: 65 Watts (217%)

Memory Bandwidth

The Radeon HD 4830 1GB should in theory be a bit faster than the GeForce GT 1030 overall. (explain)

Radeon HD 4830 1GB		57600 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 8448 (17%)

Texel Rate

The GeForce GT 1030 is a lot (about 120%) more effective at anisotropic filtering than the Radeon HD 4830 1GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 22080 (120%)

Pixel Rate

The GeForce GT 1030 is much (more or less 120%) more effective at anti-aliasing than the Radeon HD 4830 1GB, and will be able to handle higher screen resolutions better. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4830 1GB		9200 Mpixels/sec
	Difference: 11040 (120%)

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 maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.