GeForce GTX Titan Black vs Radeon HD 3650

Intro

Compare all of that to the Radeon HD 3650, which features a core clock frequency of 725 MHz and a GDDR4 memory frequency of 800 MHz. It also uses a 128-bit memory bus, and makes use of a 55 nm design. It is made up 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		78 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 172 Watts (221%)

Memory Bandwidth

The GeForce GTX Titan Black, in theory, should perform a lot faster than the Radeon HD 3650 overall. (explain)

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

Texel Rate

The GeForce GTX Titan Black will be much (approximately 3579%) more effective at texture filtering than the Radeon HD 3650. (explain)

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

Pixel Rate

The GeForce GTX Titan Black is quite a bit (more or less 1371%) more effective at full screen anti-aliasing than the Radeon HD 3650, and able to handle higher screen resolutions more effectively. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 3650		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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the card's bus 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 higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

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