Radeon HD 6450 (OEM) vs Radeon R9 280X

Intro

Compare that to the Radeon R9 280X, which comes with a core clock speed of 850 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 384-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation 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 280X		8886 points
Radeon HD 6450 (OEM)		340 points
	Difference: 8546 (2514%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon R9 280X		250 Watts
	Difference: 219 Watts (706%)

Memory Bandwidth

In theory, the Radeon R9 280X should be quite a bit faster than the Radeon HD 6450 (OEM) overall. (explain)

Radeon R9 280X		288000 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 275200 (2150%)

Texel Rate

The Radeon R9 280X will be a lot (more or less 2076%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 103800 (2076%)

Pixel Rate

The Radeon R9 280X will be a lot (more or less 988%) faster with regards to FSAA than the Radeon HD 6450 (OEM), and will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 24700 (988%)

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 information (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at 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 the graphics card can possibly record to the local memory per 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 - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.