GeForce GTX 480 vs GeForce GTX 870M

Intro

Compare all of that to the GeForce GTX 870M, which comes with GPU clock speed of 941 MHz, and 3072 MB of GDDR5 RAM set to run at 1000 MHz through a 192-bit bus. It also features 1344 SPUs, 112 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 870M		4770 points
GeForce GTX 480		3650 points
	Difference: 1120 (31%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce GTX 480		250 Watts
	Difference: 140 Watts (127%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 480 will be 85% faster than the GeForce GTX 870M in general, because of its higher bandwidth. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 81408 (85%)

Texel Rate

The GeForce GTX 870M should be much (more or less 151%) faster with regards to anisotropic filtering than the GeForce GTX 480. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GTX 480		42000 Mtexels/sec
	Difference: 63392 (151%)

Pixel Rate

The GeForce GTX 480 is quite a bit (approximately 49%) faster with regards to full screen anti-aliasing than the GeForce GTX 870M, and also will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 11016 (49%)

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 transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.