Radeon HD 6450 (OEM) vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which has a core clock frequency of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, 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

Performance-wise, the Radeon R9 380X should theoretically be quite a bit better than the Radeon HD 6450 (OEM) in general. (explain)

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

Texel Rate

The Radeon R9 380X will be quite a bit (approximately 2383%) faster with regards to AF 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

The Radeon R9 380X will be much (more or less 1142%) faster with regards to full screen anti-aliasing than the Radeon HD 6450 (OEM), and also able to handle higher resolutions without losing too much performance. (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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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