GeForce GT 315 vs Radeon HD 3650 512MB

Intro

Compare all that to the Radeon HD 3650 512MB, which has a core clock frequency of 725 MHz and a GDDR3 memory frequency of 800 MHz. It also makes use of a 128-bit bus, and makes use of a 55 nm design. It is comprised of 120(24x5) SPUs, 8 Texture Address Units, and 4 ROPs.

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

As far as performance goes, the Radeon HD 3650 512MB should theoretically be a little bit superior to 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 quite a bit (about 72%) more effective at 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 is much (more or less 72%) more effective at AA than the Radeon HD 3650 512MB, and also able to handle higher screen resolutions without losing too much performance. (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 maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed 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 better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.