GeForce GT 450 (OEM) vs Radeon R9 380 2G

Intro

Compare those specifications to the Radeon R9 380 2G, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory works at a frequency of 1425 MHz on this model. It features 1792 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
Radeon R9 380 2G		190 Watts
	Difference: 84 Watts (79%)

Memory Bandwidth

Performance-wise, the Radeon R9 380 2G should in theory be quite a bit superior to the GeForce GT 450 (OEM) overall. (explain)

Radeon R9 380 2G		182400 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 86400 (90%)

Texel Rate

The Radeon R9 380 2G will be a lot (about 473%) more effective at anisotropic filtering than the GeForce GT 450 (OEM). (explain)

Radeon R9 380 2G		108640 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 89680 (473%)

Pixel Rate

The Radeon R9 380 2G should be quite a bit (more or less 64%) better at anti-aliasing than the GeForce GT 450 (OEM), and able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 12080 (64%)

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 data (counted in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, 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 amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.