GeForce GTS 450 vs GeForce GTX 965M

Intro

Compare those specs to the GeForce GTX 965M, which features clock speeds of 944 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

Display Graphs

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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 965M		5650 points
GeForce GTS 450		1453 points
	Difference: 4197 (289%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
GeForce GTS 450		106 Watts
	Difference: 46 Watts (77%)

Memory Bandwidth

The GeForce GTX 965M should in theory perform just a bit faster than the GeForce GTS 450 overall. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 6272 (11%)

Texel Rate

The GeForce GTX 965M will be a lot (more or less 141%) faster with regards to AF than the GeForce GTS 450. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 35360 (141%)

Pixel Rate

The GeForce GTX 965M is much (more or less 141%) better at AA than the GeForce GTS 450, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 17680 (141%)

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 information (counted in MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a 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 - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.