GeForce GT 450 (OEM) vs Radeon R9 M395X

Intro

Compare that to the Radeon R9 M395X, which comes with a clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 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 M395X		125 Watts
	Difference: 19 Watts (18%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X should be much faster than the GeForce GT 450 (OEM) overall. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 64000 (67%)

Texel Rate

The Radeon R9 M395X should be a lot (more or less 388%) better at texture filtering than the GeForce GT 450 (OEM). (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 73584 (388%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M395X is superior to the GeForce GT 450 (OEM), and very much so. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 4176 (22%)

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 (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.