Radeon HD 4830 1GB vs Radeon R9 M290X

Intro

Compare that to the Radeon R9 M290X, which has core speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4830 1GB		95 Watts
Radeon R9 M290X		100 Watts
	Difference: 5 Watts (5%)

Memory Bandwidth

In theory, the Radeon R9 M290X is 167% quicker than the Radeon HD 4830 1GB in general, because of its greater bandwidth. (explain)

Radeon R9 M290X		153600 MB/sec
Radeon HD 4830 1GB		57600 MB/sec
	Difference: 96000 (167%)

Texel Rate

The Radeon R9 M290X should be quite a bit (about 270%) better at anisotropic filtering than the Radeon HD 4830 1GB. (explain)

Radeon R9 M290X		68000 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 49600 (270%)

Pixel Rate

The Radeon R9 M290X will be much (about 196%) better at full screen anti-aliasing than the Radeon HD 4830 1GB, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 M290X		27200 Mpixels/sec
Radeon HD 4830 1GB		9200 Mpixels/sec
	Difference: 18000 (196%)

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 data (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, 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 maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.