GeForce GTX 465 vs GeForce GTX 965M

Intro

Compare those specifications to the GeForce GTX 965M, which makes use of a 28 nm design. nVidia has set the core frequency at 944 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this particular model. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTX 465		200 Watts
	Difference: 140 Watts (233%)

Memory Bandwidth

The GeForce GTX 465 should in theory perform quite a bit faster than the GeForce GTX 965M overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 965M		64000 MB/sec
	Difference: 38592 (60%)

Texel Rate

The GeForce GTX 965M is quite a bit (approximately 126%) faster with regards to anisotropic filtering than the GeForce GTX 465. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 33708 (126%)

Pixel Rate

The GeForce GTX 965M will be a lot (more or less 56%) more effective at AA than the GeForce GTX 465, and will be able to handle higher resolutions better. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 10784 (56%)

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: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. 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 quite a few 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.