Radeon HD 6450 (OEM) vs Radeon R9 380X

Intro

Compare those specs to the Radeon R9 380X, which has a clock frequency of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 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 380X		9519 points
Radeon HD 6450 (OEM)		340 points
	Difference: 9179 (2700%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon R9 380X		190 Watts
	Difference: 159 Watts (513%)

Memory Bandwidth

In theory, the Radeon R9 380X should be quite a bit faster than the Radeon HD 6450 (OEM) overall. (explain)

Radeon R9 380X		182400 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 169600 (1325%)

Texel Rate

The Radeon R9 380X should be much (approximately 2383%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 119160 (2383%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380X is a better choice, and very much so. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 28540 (1142%)

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 data (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core clock 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.