GeForce GTS 450 1GB vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which has GPU clock speed of 924 MHz, and 3072 MB of GDDR5 RAM running at 1000 MHz through a 192-bit bus. It also is comprised of 1280 Stream Processors, 80 TAUs, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970M is 66% quicker than the GeForce GTS 450 1GB in general, because of its higher data rate. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 38272 (66%)

Texel Rate

The GeForce GTX 970M should be a lot (about 195%) faster with regards to anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 48864 (195%)

Pixel Rate

The GeForce GTX 970M should be quite a bit (about 254%) faster with regards to anti-aliasing than the GeForce GTS 450 1GB, and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTS 450 1GB		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 information (in units of MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface 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 better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of 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 is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.