GeForce 9500 GT 512MB GDDR3 vs GeForce GTX 650

Intro

Compare all of that to the GeForce GTX 650, which comes with GPU clock speed of 1058 MHz, and 1024 MB of GDDR5 memory set to run at 1250 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 512MB GDDR3		50 Watts
GeForce GTX 650		64 Watts
	Difference: 14 Watts (28%)

Memory Bandwidth

The GeForce GTX 650 should theoretically be quite a bit faster than the GeForce 9500 GT 512MB GDDR3 in general. (explain)

GeForce GTX 650		80000 MB/sec
GeForce 9500 GT 512MB GDDR3		25600 MB/sec
	Difference: 54400 (213%)

Texel Rate

The GeForce GTX 650 will be much (more or less 285%) more effective at AF than the GeForce 9500 GT 512MB GDDR3. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce 9500 GT 512MB GDDR3		8800 Mtexels/sec
	Difference: 25056 (285%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 is superior to the GeForce 9500 GT 512MB GDDR3, by a large margin. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce 9500 GT 512MB GDDR3		4400 Mpixels/sec
	Difference: 12528 (285%)

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 data (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.