GeForce 9800 GT 512MB vs Radeon R9 M365X

Intro

Compare all that to the Radeon R9 M365X, which uses a 28 nm design. AMD has set the core frequency at 925 MHz. The GDDR5 memory works at a frequency of 1125 MHz on this specific card. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M365X is 25% quicker than the GeForce 9800 GT 512MB in general, because of its greater data rate. (explain)

Radeon R9 M365X		72000 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 14400 (25%)

Texel Rate

The Radeon R9 M365X is a little bit (about 10%) better at AF than the GeForce 9800 GT 512MB. (explain)

Radeon R9 M365X		37000 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 3400 (10%)

Pixel Rate

The Radeon R9 M365X is much (approximately 54%) more effective at anti-aliasing than the GeForce 9800 GT 512MB, and also capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 M365X		14800 Mpixels/sec
GeForce 9800 GT 512MB		9600 Mpixels/sec
	Difference: 5200 (54%)

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 megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.