GeForce GT 315 vs Radeon HD 3650 512MB

Intro

Compare those specs to the Radeon HD 3650 512MB, which makes use of a 55 nm design. AMD has clocked the core speed at 725 MHz. The GDDR3 RAM runs at a speed of 800 MHz on this model. It features 120(24x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 315		52 Watts
Radeon HD 3650 512MB		78 Watts
	Difference: 26 Watts (50%)

Memory Bandwidth

Performance-wise, the Radeon HD 3650 512MB should in theory be a small bit better than the GeForce GT 315 in general. (explain)

Radeon HD 3650 512MB		25600 MB/sec
GeForce GT 315		25280 MB/sec
	Difference: 320 (1%)

Texel Rate

The GeForce GT 315 should be much (about 72%) faster with regards to AF than the Radeon HD 3650 512MB. (explain)

GeForce GT 315		10000 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 4200 (72%)

Pixel Rate

The GeForce GT 315 will be a lot (approximately 72%) faster with regards to full screen anti-aliasing than the Radeon HD 3650 512MB, and should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GT 315		5000 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 2100 (72%)

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 largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the 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 that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.