GeForce GTS 150 vs Geforce GTX 680

Intro

Compare all of that to the Geforce GTX 680, which features a GPU core clock speed of 1006 MHz, and 2048 MB of GDDR5 memory running at 1502 MHz through a 256-bit bus. It also features 1536 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
Geforce GTX 680		195 Watts
	Difference: 54 Watts (38%)

Memory Bandwidth

Theoretically, the Geforce GTX 680 should perform much faster than the GeForce GTS 150 overall. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 160256 (501%)

Texel Rate

The Geforce GTX 680 will be a lot (more or less 172%) faster with regards to AF than the GeForce GTS 150. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 81408 (172%)

Pixel Rate

The Geforce GTX 680 is quite a bit (about 172%) faster with regards to anti-aliasing than the GeForce GTS 150, and also capable of handling higher resolutions while still performing well. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 20352 (172%)

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 (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its 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 card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.