Radeon HD 6450 (OEM) vs Radeon R9 Nano

Intro

Compare that to the Radeon R9 Nano, which features a GPU core clock speed of 1000 MHz, and 4096 MB of HBM memory running at 500 MHz through a 4096-bit bus. It also is comprised of 4096 Stream Processors, 256 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 Nano		14918 points
Radeon HD 6450 (OEM)		340 points
	Difference: 14578 (4288%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon R9 Nano		175 Watts
	Difference: 144 Watts (465%)

Memory Bandwidth

The Radeon R9 Nano should theoretically be a lot faster than the Radeon HD 6450 (OEM) in general. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 499200 (3900%)

Texel Rate

The Radeon R9 Nano is quite a bit (more or less 5020%) better at AF than the Radeon HD 6450 (OEM). (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 251000 (5020%)

Pixel Rate

The Radeon R9 Nano is much (approximately 2460%) faster with regards to anti-aliasing than the Radeon HD 6450 (OEM), and able to handle higher screen resolutions more effectively. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 61500 (2460%)

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 maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, 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 maximum number of pixels that 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 speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.