GeForce GTS 150 vs Radeon R9 M380

Intro

Compare all that to the Radeon R9 M380, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 memory is set to run at a speed of 1500 MHz on this specific card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M380 should be 200% quicker than the GeForce GTS 150 overall, due to its greater bandwidth. (explain)

Radeon R9 M380		96000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 64000 (200%)

Texel Rate

The GeForce GTS 150 is just a bit (more or less 18%) more effective at AF than the Radeon R9 M380. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon R9 M380		40000 Mtexels/sec
	Difference: 7360 (18%)

Pixel Rate

The Radeon R9 M380 is much (approximately 35%) better at anti-aliasing than the GeForce GTS 150, and also capable of handling higher screen resolutions better. (explain)

Radeon R9 M380		16000 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 4160 (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 max amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure 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 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 of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.