GeForce GTX 950M vs Radeon HD 4670 1GB

Intro

Compare those specifications to the Radeon HD 4670 1GB, which makes use of a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 memory works at a frequency of 1100 MHz on this specific model. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 ROPs.

Display Graphs

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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 be a small bit faster than the GeForce GTX 950M in general. (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 a lot (more or less 144%) better at FSAA than the Radeon HD 4670 1GB, and also able to handle higher resolutions better. (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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it should 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.