GeForce GT 240 GDDR5 1GB vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which makes use of a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 RAM is set to run at a frequency of 1425 MHz on this particular model. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
Radeon R9 380X		190 Watts
	Difference: 120 Watts (171%)

Memory Bandwidth

The Radeon R9 380X, in theory, should be quite a bit faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 128000 (235%)

Texel Rate

The Radeon R9 380X will be quite a bit (more or less 605%) more effective at texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 106560 (605%)

Pixel Rate

The Radeon R9 380X is a lot (approximately 605%) better at AA than the GeForce GT 240 GDDR5 1GB, and also will be able to handle higher resolutions more effectively. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 26640 (605%)

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 information (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.