GeForce GTX Titan Black vs Radeon HD 3650 256MB

Intro

Compare those specifications to the Radeon HD 3650 256MB, which has a clock speed of 725 MHz and a DDR2 memory speed of 800 MHz. It also makes use of a 128-bit memory bus, and makes use of a 55 nm design. It is comprised of 120(24x5) SPUs, 8 TAUs, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB		78 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 172 Watts (221%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan Black should theoretically be much superior to the Radeon HD 3650 256MB overall. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 3650 256MB		25600 MB/sec
	Difference: 310400 (1213%)

Texel Rate

The GeForce GTX Titan Black should be a lot (about 3579%) better at texture filtering than the Radeon HD 3650 256MB. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 3650 256MB		5800 Mtexels/sec
	Difference: 207560 (3579%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX Titan Black is superior to the Radeon HD 3650 256MB, by far. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 3650 256MB		2900 Mpixels/sec
	Difference: 39772 (1371%)

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 (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.