GeForce GTX 465 vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which comes with a core clock speed of 1100 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 465 should perform just a bit faster than the Radeon R9 M385X overall. (explain)

GeForce GTX 465		102592 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 6592 (7%)

Texel Rate

The Radeon R9 M385X is a lot (approximately 131%) better at anisotropic filtering than the GeForce GTX 465. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 34892 (131%)

Pixel Rate

The GeForce GTX 465 will be a small bit (more or less 10%) faster with regards to AA than the Radeon R9 M385X, and will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 1824 (10%)

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 information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.