Radeon HD 4670 1GB vs Radeon R9 M290X

Intro

Compare those specs to the Radeon R9 M290X, which features clock speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
Radeon R9 M290X		100 Watts
	Difference: 30 Watts (43%)

Memory Bandwidth

The Radeon R9 M290X, in theory, should be quite a bit faster than the Radeon HD 4670 1GB overall. (explain)

Radeon R9 M290X		153600 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 118400 (336%)

Texel Rate

The Radeon R9 M290X will be a lot (more or less 183%) better at anisotropic filtering than the Radeon HD 4670 1GB. (explain)

Radeon R9 M290X		68000 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 44000 (183%)

Pixel Rate

The Radeon R9 M290X should be quite a bit (about 353%) better at anti-aliasing than the Radeon HD 4670 1GB, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 M290X		27200 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 21200 (353%)

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 information (measured in megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.