Radeon HD 4730 vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which has a clock speed of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M385X should theoretically perform quite a bit faster than the Radeon HD 4730 overall. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 38400 (67%)

Texel Rate

The Radeon R9 M385X should be quite a bit (about 175%) better at texture filtering than the Radeon HD 4730. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 39200 (175%)

Pixel Rate

The Radeon R9 M385X is much (approximately 214%) more effective at anti-aliasing than the Radeon HD 4730, and able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 12000 (214%)

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 max amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the 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 can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.