GeForce 930M vs Radeon HD 4670 1GB

Intro

Compare those specs to the Radeon HD 4670 1GB, which makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM is set to run at a speed of 1100 MHz on this card. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 4670 1GB should theoretically be much faster than the GeForce 930M overall. (explain)

Radeon HD 4670 1GB		35200 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 20800 (144%)

Texel Rate

The Radeon HD 4670 1GB will be a little bit (more or less 8%) better at anisotropic filtering than the GeForce 930M. (explain)

Radeon HD 4670 1GB		24000 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 1728 (8%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 930M is superior to the Radeon HD 4670 1GB, and very much so. (explain)

GeForce 930M		7424 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 1424 (24%)

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 data (measured 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 speed. In the case of DDR type RAM, 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 high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.