GeForce 8300 GS (OEM) vs Radeon HD 7790

Intro

Compare that to the Radeon HD 7790, which has a clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and uses a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8300 GS (OEM)		40 Watts
Radeon HD 7790		85 Watts
	Difference: 45 Watts (113%)

Memory Bandwidth

The Radeon HD 7790 should in theory be a lot faster than the GeForce 8300 GS (OEM) in general. (explain)

Radeon HD 7790		96000 MB/sec
GeForce 8300 GS (OEM)		6400 MB/sec
	Difference: 89600 (1400%)

Texel Rate

The Radeon HD 7790 will be much (about 3011%) more effective at AF than the GeForce 8300 GS (OEM). (explain)

Radeon HD 7790		56000 Mtexels/sec
GeForce 8300 GS (OEM)		1800 Mtexels/sec
	Difference: 54200 (3011%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 7790 is superior to the GeForce 8300 GS (OEM), and very much so. (explain)

Radeon HD 7790		16000 Mpixels/sec
GeForce 8300 GS (OEM)		900 Mpixels/sec
	Difference: 15100 (1678%)

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 data (counted in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.