GeForce GT 450 (OEM) vs Radeon R9 270X

Intro

Compare those specs to the Radeon R9 270X, which features core clock speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
Radeon R9 270X		180 Watts
	Difference: 74 Watts (70%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270X should in theory be a lot better than the GeForce GT 450 (OEM) overall. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 83200 (87%)

Texel Rate

The Radeon R9 270X will be quite a bit (about 322%) more effective at AF than the GeForce GT 450 (OEM). (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 61040 (322%)

Pixel Rate

The Radeon R9 270X will be a lot (about 69%) more effective at anti-aliasing than the GeForce GT 450 (OEM), and also able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 13040 (69%)

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 largest amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.