Radeon HD 4830 1GB vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which has a core clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4830 1GB		95 Watts
Radeon R9 M395X		125 Watts
	Difference: 30 Watts (32%)

Memory Bandwidth

In theory, the Radeon R9 M395X will be 178% quicker than the Radeon HD 4830 1GB in general, because of its greater bandwidth. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 4830 1GB		57600 MB/sec
	Difference: 102400 (178%)

Texel Rate

The Radeon R9 M395X is quite a bit (approximately 403%) faster with regards to AF than the Radeon HD 4830 1GB. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 4830 1GB		18400 Mtexels/sec
	Difference: 74144 (403%)

Pixel Rate

The Radeon R9 M395X will be much (approximately 151%) faster with regards to FSAA than the Radeon HD 4830 1GB, and should be able to handle higher resolutions more effectively. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon HD 4830 1GB		9200 Mpixels/sec
	Difference: 13936 (151%)

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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If 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 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.