GeForce 9500 GT DDR2 vs Radeon R7 250

Intro

Compare that to the Radeon R7 250, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this particular card. It features 384 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
Radeon R7 250		65 Watts
	Difference: 15 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 is 360% quicker than the GeForce 9500 GT DDR2 in general, because of its higher bandwidth. (explain)

Radeon R7 250		73600 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 57600 (360%)

Texel Rate

The Radeon R7 250 should be quite a bit (approximately 173%) faster with regards to AF than the GeForce 9500 GT DDR2. (explain)

Radeon R7 250		24000 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 15200 (173%)

Pixel Rate

The Radeon R7 250 will be a lot (approximately 82%) better at FSAA than the GeForce 9500 GT DDR2, and able to handle higher screen resolutions better. (explain)

Radeon R7 250		8000 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 3600 (82%)

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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock 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 fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.