Radeon R7 250X vs Radeon R9 Nano

Intro

Compare that to the Radeon R9 Nano, which has clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM RAM. It features 4096 SPUs along with 256 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 R7 250X		2860 points
	Difference: 12058 (422%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
Radeon R9 Nano		175 Watts
	Difference: 80 Watts (84%)

Memory Bandwidth

In theory, the Radeon R9 Nano is 611% quicker than the Radeon R7 250X in general, because of its higher bandwidth. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 440000 (611%)

Texel Rate

The Radeon R9 Nano will be a lot (approximately 540%) faster with regards to anisotropic filtering than the Radeon R7 250X. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 216000 (540%)

Pixel Rate

The Radeon R9 Nano should be quite a bit (approximately 300%) more effective at full screen anti-aliasing than the Radeon R7 250X, and able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 Nano		64000 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 48000 (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: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the video 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 most 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 worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.