GeForce GTX 470 vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this particular card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 470 should in theory be a lot superior to the Radeon R9 M380 overall. (explain)

GeForce GTX 470		133920 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 37920 (40%)

Texel Rate

The Radeon R9 M380 will be a little bit (approximately 18%) better at anisotropic filtering than the GeForce GTX 470. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce GTX 470		33992 Mtexels/sec
	Difference: 6008 (18%)

Pixel Rate

The GeForce GTX 470 will be a lot (more or less 52%) more effective at FSAA than the Radeon R9 M380, and also capable of handling higher resolutions better. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 8280 (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 largest amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If 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 figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a 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 worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.