GeForce GT 450 (OEM) vs Radeon R9 380X

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the Radeon R9 380X should theoretically be much superior to the GeForce GT 450 (OEM) overall. (explain)

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

Texel Rate

The Radeon R9 380X is much (more or less 555%) faster with regards to texture filtering than the GeForce GT 450 (OEM). (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 105200 (555%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380X is the winner, by a large margin. (explain)

Radeon R9 380X		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: Bandwidth is the largest amount of information (counted in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 are processed in one second. This is calculated by multiplying the total amount 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 number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.