GeForce GTX 460 1GB vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which comes with a clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB		160 Watts
Radeon R9 380 4G		190 Watts
	Difference: 30 Watts (19%)

Memory Bandwidth

As far as performance goes, the Radeon R9 380 4G should theoretically be much better than the GeForce GTX 460 1GB overall. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GTX 460 1GB		115200 MB/sec
	Difference: 67200 (58%)

Texel Rate

The Radeon R9 380 4G is a lot (about 187%) more effective at texture filtering than the GeForce GTX 460 1GB. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 70840 (187%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 380 4G is the winner, and very much so. (explain)

Radeon R9 380 4G		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 maximum amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.