GeForce GT 240 GDDR5 vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which has a core clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Radeon R9 380X should perform a lot faster than the GeForce GT 240 GDDR5 in general. (explain)

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

Texel Rate

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

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

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 380X is the winner, by far. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GT 240 GDDR5		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: Bandwidth is the largest amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of 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 number of ROPs by the the core 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.