GeForce GT 450 (OEM) vs Radeon R9 270X

Intro

Compare those specifications to the Radeon R9 270X, which features a clock speed of 1000 MHz and a GDDR5 memory frequency of 1400 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is made up of 1280 SPUs, 80 TAUs, and 32 Raster Operation Units.

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

Theoretically speaking, the Radeon R9 270X should be 87% faster than the GeForce GT 450 (OEM) overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon R9 270X is a lot (more or less 322%) faster with regards to anisotropic filtering 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%) better at FSAA than the GeForce GT 450 (OEM), and should be capable of handling higher screen resolutions without slowing down too much. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.