GeForce GTX 650 Ti 2GB vs Radeon R7 250X

Intro

Compare those specifications to the Radeon R7 250X, which uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM works at a speed of 1125 MHz on this model. It features 640 SPUs along with 40 Texture Address Units 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 GTX 650 Ti 2GB		110 Watts
	Difference: 15 Watts (16%)

Memory Bandwidth

The GeForce GTX 650 Ti 2GB should in theory be a bit faster than the Radeon R7 250X in general. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 14400 (20%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a lot (more or less 48%) faster with regards to texture filtering than the Radeon R7 250X. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 19392 (48%)

Pixel Rate

The Radeon R7 250X is a bit (approximately 8%) more effective at full screen anti-aliasing than the GeForce GTX 650 Ti 2GB, and also able to handle higher screen resolutions more effectively. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 1152 (8%)

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 data (in units of megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.