GeForce 9500 GT 1GB GDDR3 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which has GPU clock speed of 730 MHz, and 2048 MB of DDR3 RAM running at 900 MHz through a 128-bit bus. It also is made up of 320 Stream Processors, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce 9500 GT 1GB GDDR3		50 Watts
	Difference: 20 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon R7 240 should theoretically be a little bit superior to the GeForce 9500 GT 1GB GDDR3 overall. (explain)

Radeon R7 240		28800 MB/sec
GeForce 9500 GT 1GB GDDR3		25600 MB/sec
	Difference: 3200 (13%)

Texel Rate

The Radeon R7 240 is much (about 66%) more effective at texture filtering than the GeForce 9500 GT 1GB GDDR3. (explain)

Radeon R7 240		14600 Mtexels/sec
GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
	Difference: 5800 (66%)

Pixel Rate

The Radeon R7 240 should be a lot (about 33%) better at anti-aliasing than the GeForce 9500 GT 1GB GDDR3, and able to handle higher resolutions better. (explain)

Radeon R7 240		5840 Mpixels/sec
GeForce 9500 GT 1GB GDDR3		4400 Mpixels/sec
	Difference: 1440 (33%)

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: Bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 can be applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.