GeForce GTS 150 vs Radeon R7 250

Intro

Compare those specs to the Radeon R7 250, which has core speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs as well as 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250		65 Watts
GeForce GTS 150		141 Watts
	Difference: 76 Watts (117%)

Memory Bandwidth

Theoretically, the Radeon R7 250 should be much faster than the GeForce GTS 150 in general. (explain)

Radeon R7 250		73600 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 41600 (130%)

Texel Rate

The GeForce GTS 150 is quite a bit (about 97%) more effective at texture filtering than the Radeon R7 250. (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon R7 250		24000 Mtexels/sec
	Difference: 23360 (97%)

Pixel Rate

The GeForce GTS 150 is much (approximately 48%) faster with regards to full screen anti-aliasing than the Radeon R7 250, and will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTS 150		11840 Mpixels/sec
Radeon R7 250		8000 Mpixels/sec
	Difference: 3840 (48%)

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 transported over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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