GeForce GT 1030 vs Radeon HD 4830 1GB

Intro

Compare those specs to the Radeon HD 4830 1GB, which features a clock frequency of 575 MHz and a GDDR4 memory frequency of 900 MHz. It also features a 256-bit bus, and uses a 55 nm design. It is made up of 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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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

Performance-wise, the Radeon HD 4830 1GB should theoretically be a little bit superior to 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 should be a lot (more or less 120%) better at AF 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 will be a lot (approximately 120%) better at FSAA than the Radeon HD 4830 1GB, and able to handle higher resolutions without losing too much performance. (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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.