GeForce 940M vs Radeon HD 4670 1GB

Intro

Compare those specifications to the Radeon HD 4670 1GB, which features GPU core speed of 750 MHz, and 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM running at 1100 MHz through a 128-bit bus. It also is made up of 320(64x5) Stream Processors, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 4670 1GB should in theory be much superior to the GeForce 940M in general. (explain)

Radeon HD 4670 1GB		35200 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 19200 (120%)

Texel Rate

The GeForce 940M is a small bit (approximately 7%) faster with regards to anisotropic filtering than the Radeon HD 4670 1GB. (explain)

GeForce 940M		25728 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 1728 (7%)

Pixel Rate

The GeForce 940M should be much (more or less 43%) faster with regards to FSAA than the Radeon HD 4670 1GB, and should be able to handle higher resolutions more effectively. (explain)

GeForce 940M		8576 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 2576 (43%)

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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.