Compare any two graphics cards:

Radeon HD 4730 vs Radeon HD 5830

Intro

The Radeon HD 4730 makes use of a 55 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 RAM works at a frequency of 900 MHz on this particular card. It features 640(128x5) SPUs along with 32 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5830, which makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this card. It features 1120(224x5) SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730		140 Watts
Radeon HD 5830		175 Watts
	Difference: 35 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5830 is 122% quicker than the Radeon HD 4730 in general, because of its greater bandwidth. (explain)

Radeon HD 5830		128000 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 70400 (122%)

Texel Rate

The Radeon HD 5830 will be quite a bit (approximately 100%) faster with regards to anisotropic filtering than the Radeon HD 4730. (explain)

Radeon HD 5830		44800 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 22400 (100%)

Pixel Rate

The Radeon HD 5830 will be quite a bit (approximately 129%) better at full screen anti-aliasing than the Radeon HD 4730, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5830		12800 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 7200 (129%)

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

Display Prices

Hide Prices

Radeon HD 4730

Amazon.com

Check prices at:

Radeon HD 5830

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model	Radeon HD 4730	Radeon HD 5830
Manufacturer	AMD	AMD
Year	Jun 8, 2009	February 25, 2010
Code Name	RV770/CE	Cypress LE
Memory	512 MB	1024 MB
Core Speed	700 MHz	800 MHz
Memory Speed	3600 MHz	4000 MHz
Power (Max TDP)	140 watts	175 watts
Bandwidth	57600 MB/sec	128000 MB/sec
Texel Rate	22400 Mtexels/sec	44800 Mtexels/sec
Pixel Rate	5600 Mpixels/sec	12800 Mpixels/sec
Unified Shaders	640(128x5)	1120(224x5)
Texture Mapping Units	32	56
Render Output Units	8	16
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	256-bit
Fab Process	55 nm	40 nm
Transistors	956 million	2154 million
Bus	PCIe 2.0 x16	PCIe 2.1 x16
DirectX Version	DirectX 10.1	DirectX 11
OpenGL Version	OpenGL 3.0	OpenGL 3.2

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 ability to get to the maximum fill rate.

Display Prices

Hide Prices