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

Intro

Compare all of that to the Radeon R9 390X 8G, which has a core clock frequency of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 512-bit memory bus, and makes use of a 28 nm design. It features 2816 SPUs, 176 Texture Address Units, and 64 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 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

Performance-wise, the Radeon R9 390X 8G should in theory be much superior to the Radeon HD 6450 (OEM) in general. (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 a lot (more or less 3596%) better at texture 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 running with a high resolution is important to you, then the Radeon R9 390X 8G is superior to the Radeon HD 6450 (OEM), and very much so. (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 information (measured in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.