Radeon HD 3650 512MB vs Radeon R9 M270X

Intro

Compare that to the Radeon R9 M270X, which comes with core clock speeds of 725 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M270X should theoretically be quite a bit superior to the Radeon HD 3650 512MB overall. (explain)

Radeon R9 M270X		72000 MB/sec
Radeon HD 3650 512MB		25600 MB/sec
	Difference: 46400 (181%)

Texel Rate

The Radeon R9 M270X should be quite a bit (approximately 400%) more effective at AF than the Radeon HD 3650 512MB. (explain)

Radeon R9 M270X		29000 Mtexels/sec
Radeon HD 3650 512MB		5800 Mtexels/sec
	Difference: 23200 (400%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 M270X is a better choice, by far. (explain)

Radeon R9 M270X		11600 Mpixels/sec
Radeon HD 3650 512MB		2900 Mpixels/sec
	Difference: 8700 (300%)

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 transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.