GeForce GTX 950M vs Radeon HD 4670 1GB

Intro

Compare all of that to the Radeon HD 4670 1GB, which has GPU clock speed of 750 MHz, and 1024 MB of GDDR4/GDDR3/DDR3/DDR2 memory running at 1100 MHz through a 128-bit bus. It also features 320(64x5) Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon HD 4670 1GB		70 Watts
	Difference: 15 Watts (27%)

Memory Bandwidth

The Radeon HD 4670 1GB should in theory perform a bit faster than the GeForce GTX 950M overall. (explain)

Radeon HD 4670 1GB		35200 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 3200 (10%)

Texel Rate

The GeForce GTX 950M is a lot (more or less 52%) faster with regards to texture filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 12560 (52%)

Pixel Rate

The GeForce GTX 950M is much (about 144%) more effective at AA than the Radeon HD 4670 1GB, and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 8624 (144%)

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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.