Radeon HD 6670 (OEM) vs Radeon RX 470 4GB

Intro

Compare those specifications to the Radeon RX 470 4GB, which uses a 14 nm design. AMD has clocked the core frequency at 926 MHz. The GDDR5 RAM is set to run at a frequency of 1650 MHz on this particular card. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 57 Watts (90%)

Memory Bandwidth

Performance-wise, the Radeon RX 470 4GB should theoretically be a lot superior to the Radeon HD 6670 (OEM) in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 147200 (230%)

Texel Rate

The Radeon RX 470 4GB will be much (more or less 517%) better at AF than the Radeon HD 6670 (OEM). (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 99328 (517%)

Pixel Rate

The Radeon RX 470 4GB is much (approximately 363%) better at full screen anti-aliasing than the Radeon HD 6670 (OEM), and able to handle higher screen resolutions more effectively. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 23232 (363%)

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 largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 number of texture map elements (texels) that are applied per second. This figure 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a 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 - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.