GeForce GTS 450 1GB vs Radeon R7 250X

Intro

Compare all of that to the Radeon R7 250X, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 RAM runs at a frequency of 1125 MHz on this particular card. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 11 Watts (12%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250X is 25% quicker than the GeForce GTS 450 1GB in general, because of its greater bandwidth. (explain)

Radeon R7 250X		72000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 14272 (25%)

Texel Rate

The Radeon R7 250X is quite a bit (about 60%) better at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 14944 (60%)

Pixel Rate

The Radeon R7 250X is quite a bit (about 28%) more effective at anti-aliasing than the GeForce GTS 450 1GB, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 3472 (28%)

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 moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better 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 graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.