GeForce GTS 450 vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which features a clock frequency of 924 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 192-bit bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 TAUs, and 48 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 970M		7520 points
GeForce GTS 450		1453 points
	Difference: 6067 (418%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTS 450		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

The GeForce GTX 970M should theoretically be a lot faster than the GeForce GTS 450 overall. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 38272 (66%)

Texel Rate

The GeForce GTX 970M is much (more or less 195%) more effective at AF than the GeForce GTS 450. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 48864 (195%)

Pixel Rate

The GeForce GTX 970M will be a lot (about 254%) better at full screen anti-aliasing than the GeForce GTS 450, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 31824 (254%)

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 largest amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the 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 that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.