GeForce 9800 GTX+ vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which makes use of a 28 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR5 memory runs at a frequency of 1375 MHz on this model. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X		125 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 20 Watts (16%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X should be quite a bit faster than the GeForce 9800 GTX+ in general. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce 9800 GTX+		70400 MB/sec
	Difference: 105600 (150%)

Texel Rate

The Radeon R9 M295X will be quite a bit (more or less 103%) more effective at anisotropic filtering than the GeForce 9800 GTX+. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce 9800 GTX+		47232 Mtexels/sec
	Difference: 48768 (103%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M295X is superior to the GeForce 9800 GTX+, by a large margin. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce 9800 GTX+		11808 Mpixels/sec
	Difference: 12192 (103%)

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 (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's worked out 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 4 instead. The higher the memory bandwidth, the better 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 can be processed in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.