Radeon HD 4730 vs Radeon R9 M295X

Intro

Compare all that to the Radeon R9 M295X, which features a clock frequency of 750 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
Radeon HD 4730		140 Watts
	Difference: 15 Watts (12%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X should perform quite a bit faster than the Radeon HD 4730 overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 118400 (206%)

Texel Rate

The Radeon R9 M295X is quite a bit (approximately 329%) faster with regards to anisotropic filtering than the Radeon HD 4730. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 73600 (329%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M295X is the winner, and very much so. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 18400 (329%)

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 largest amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video 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 most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.