GeForce GTX 465 vs GeForce GTX 650

Intro

Compare all that to the GeForce GTX 650, which has clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 465		200 Watts
	Difference: 136 Watts (213%)

Memory Bandwidth

The GeForce GTX 465 should in theory be quite a bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 22592 (28%)

Texel Rate

The GeForce GTX 650 is quite a bit (approximately 27%) faster with regards to anisotropic filtering than the GeForce GTX 465. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 7148 (27%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 465 is the winner, though not by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 2496 (15%)

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 (measured in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.