GeForce GT 340 1GB vs Radeon R7 250X

Intro

Compare those specifications to the Radeon R7 250X, which features GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon R7 250X		95 Watts
	Difference: 26 Watts (38%)

Memory Bandwidth

The Radeon R7 250X should theoretically perform much faster than the GeForce GT 340 1GB in general. (explain)

Radeon R7 250X		72000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 17600 (32%)

Texel Rate

The Radeon R7 250X will be a lot (more or less 127%) faster with regards to texture filtering than the GeForce GT 340 1GB. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 22400 (127%)

Pixel Rate

The Radeon R7 250X will be a lot (more or less 264%) more effective at FSAA than the GeForce GT 340 1GB, and will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 11600 (264%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling 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 the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.