GeForce 9800 GT 1GB vs Radeon R9 M265X

Intro

Compare that to the Radeon R9 M265X, which uses a 28 nm design. AMD has clocked the core frequency at 575 MHz. The GDDR5 RAM runs at a speed of 1125 MHz on this specific model. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M265X should be a lot faster than the GeForce 9800 GT 1GB in general. (explain)

Radeon R9 M265X		72000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 14400 (25%)

Texel Rate

The GeForce 9800 GT 1GB is quite a bit (about 46%) better at anisotropic filtering than the Radeon R9 M265X. (explain)

GeForce 9800 GT 1GB		33600 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 10600 (46%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 9800 GT 1GB is superior to the Radeon R9 M265X, but not by far. (explain)

GeForce 9800 GT 1GB		9600 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 400 (4%)

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 max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics 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 maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.