GeForce GT 450 (OEM) vs Radeon R9 M395X

Intro

Compare that to the Radeon R9 M395X, which has core speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units 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 M395X		125 Watts
	Difference: 19 Watts (18%)

Memory Bandwidth

In theory, the Radeon R9 M395X should be 67% quicker than the GeForce GT 450 (OEM) overall, due to its greater bandwidth. (explain)

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

Texel Rate

The Radeon R9 M395X is 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 running with a high screen resolution is important to you, then the Radeon R9 M395X is the winner, 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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one 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 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 amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.