GeForce GTS 150 vs GeForce GTX 650 Ti 2GB

Intro

Compare all that to the GeForce GTX 650 Ti 2GB, which has GPU clock speed of 928 MHz, and 2048 MB of GDDR5 RAM set to run at 1350 MHz through a 128-bit bus. It also features 768 Stream Processors, 64 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce GTS 150		141 Watts
	Difference: 31 Watts (28%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti 2GB should theoretically be much superior to the GeForce GTS 150 in general. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 54400 (170%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a lot (about 25%) faster with regards to AF than the GeForce GTS 150. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 12032 (25%)

Pixel Rate

The GeForce GTX 650 Ti 2GB will be much (about 25%) more effective at AA than the GeForce GTS 150, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 3008 (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 maximum amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling 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 the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.