Radeon HD 6450 (OEM) vs Radeon R9 390X 8G

Intro

Compare that to the Radeon R9 390X 8G, which has GPU clock speed of 1050 MHz, and 8192 MB of GDDR5 memory set to run at 1500 MHz through a 512-bit bus. It also features 2816 Stream Processors, 176 Texture Address Units, and 64 ROPs.

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 390X 8G		13555 points
Radeon HD 6450 (OEM)		340 points
	Difference: 13215 (3887%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 244 Watts (787%)

Memory Bandwidth

The Radeon R9 390X 8G, in theory, should perform quite a bit faster than the Radeon HD 6450 (OEM) overall. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 371200 (2900%)

Texel Rate

The Radeon R9 390X 8G is much (approximately 3596%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 179800 (3596%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 390X 8G is superior to the Radeon HD 6450 (OEM), by far. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 64700 (2588%)

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 MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card 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 per second.

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