GeForce GTX Titan Black vs Radeon HD 3650

Intro

Compare those specifications to the Radeon HD 3650, which uses a 55 nm design. AMD has set the core speed at 725 MHz. The GDDR4 RAM runs at a frequency of 800 MHz on this specific model. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

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

Theoretically, the GeForce GTX Titan Black should perform much faster than the Radeon HD 3650 in general. (explain)

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

Texel Rate

The GeForce GTX Titan Black should be much (approximately 3579%) more effective at AF 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 a lot (more or less 1371%) faster with regards to anti-aliasing than the Radeon HD 3650, and also should be able to handle higher 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: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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