GeForce 8800 GTS (G80) 320MB vs Radeon R5 M330

Intro

Compare all of that to the Radeon R5 M330, which features core speeds of 1030 MHz on the GPU, and 900 MHz on the 2048 MB of DDR3 memory. It features 320 SPUs along with 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 8800 GTS (G80) 320MB should be 340% quicker than the Radeon R5 M330 overall, due to its higher bandwidth. (explain)

GeForce 8800 GTS (G80) 320MB		63360 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 48960 (340%)

Texel Rate

The GeForce 8800 GTS (G80) 320MB should be a bit (approximately 20%) more effective at texture filtering than the Radeon R5 M330. (explain)

GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 4024 (20%)

Pixel Rate

If using a high resolution is important to you, then the GeForce 8800 GTS (G80) 320MB is the winner, by a large margin. (explain)

GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 2020 (25%)

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 megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, 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 calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.