GeForce 9800 GT 1GB vs GeForce GTX 950M

Intro

Compare those specifications to the GeForce GTX 950M, which has a clock frequency of 914 MHz and a DDR3 memory speed of 1000 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce 9800 GT 1GB		105 Watts
	Difference: 50 Watts (91%)

Memory Bandwidth

The GeForce 9800 GT 1GB should theoretically perform a lot faster than the GeForce GTX 950M in general. (explain)

GeForce 9800 GT 1GB		57600 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 25600 (80%)

Texel Rate

The GeForce GTX 950M is a small bit (about 9%) faster with regards to AF than the GeForce 9800 GT 1GB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 2960 (9%)

Pixel Rate

The GeForce GTX 950M should be quite a bit (about 52%) better at FSAA than the GeForce 9800 GT 1GB, and capable of handling higher resolutions better. (explain)

GeForce GTX 950M		14624 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 5024 (52%)

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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video 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 that the graphics chip can possibly record to its 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 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 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 maximum fill rate.