Geforce GTX 770 vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which features core speeds of 1000 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Geforce GTX 770 should be quite a bit faster than the Radeon R9 M380 overall. (explain)

Geforce GTX 770		224384 MB/sec
Radeon R9 M380		96000 MB/sec
	Difference: 128384 (134%)

Texel Rate

The Geforce GTX 770 is a lot (approximately 235%) better at anisotropic filtering than the Radeon R9 M380. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 93888 (235%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 770 is superior to the Radeon R9 M380, and very much so. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon R9 M380		16000 Mpixels/sec
	Difference: 17472 (109%)

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 largest amount of data (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result 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 number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video 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 card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.