GeForce 9500 GT DDR2 vs Radeon HD 7790

Intro

Compare that to the Radeon HD 7790, which has core speeds of 1000 MHz on the GPU, and 1500 MHz on the 1024 MB of GDDR5 RAM. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
Radeon HD 7790		85 Watts
	Difference: 35 Watts (70%)

Memory Bandwidth

The Radeon HD 7790 should in theory perform much faster than the GeForce 9500 GT DDR2 overall. (explain)

Radeon HD 7790		96000 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 80000 (500%)

Texel Rate

The Radeon HD 7790 is much (about 536%) more effective at AF than the GeForce 9500 GT DDR2. (explain)

Radeon HD 7790		56000 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 47200 (536%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 7790 is the winner, and very much so. (explain)

Radeon HD 7790		16000 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 11600 (264%)

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 (in units of MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.