GeForce GT 315 vs Radeon R9 280X

Intro

Compare all that to the Radeon R9 280X, which features a clock speed of 850 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon R9 280X		250 Watts
	Difference: 198 Watts (381%)

Memory Bandwidth

The Radeon R9 280X should in theory be quite a bit faster than the GeForce GT 315 in general. (explain)

Radeon R9 280X		288000 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 262720 (1039%)

Texel Rate

The Radeon R9 280X should be quite a bit (approximately 988%) better at AF than the GeForce GT 315. (explain)

Radeon R9 280X		108800 Mtexels/sec
GeForce GT 315		10000 Mtexels/sec
	Difference: 98800 (988%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 280X is superior to the GeForce GT 315, by far. (explain)

Radeon R9 280X		27200 Mpixels/sec
GeForce GT 315		5000 Mpixels/sec
	Difference: 22200 (444%)

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 maximum amount of data (counted in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 processed in one second. This number is worked out by multiplying the total 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core 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 is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.