GeForce GTX 460 2GB vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 460 2GB, in theory, should be a small bit faster than the Radeon R9 M380 in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 19200 (20%)

Texel Rate

The Radeon R9 M380 will be just a bit (approximately 6%) more effective at texture filtering than the GeForce GTX 460 2GB. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 2200 (6%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 2GB is the winner, by a large margin. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 5600 (35%)

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 maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.