GeForce GTX 460 1GB vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which makes use of a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 RAM runs at a frequency of 1425 MHz on this particular card. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB		160 Watts
Radeon R9 380X		190 Watts
	Difference: 30 Watts (19%)

Memory Bandwidth

In theory, the Radeon R9 380X should perform much faster than the GeForce GTX 460 1GB in general. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 460 1GB		115200 MB/sec
	Difference: 67200 (58%)

Texel Rate

The Radeon R9 380X is much (more or less 228%) better at AF than the GeForce GTX 460 1GB. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 86360 (228%)

Pixel Rate

The Radeon R9 380X will be much (approximately 44%) better at AA than the GeForce GTX 460 1GB, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 460 1GB		21600 Mpixels/sec
	Difference: 9440 (44%)

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 data (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.