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Radeon HD 5830 vs Radeon HD 6790

Intro

The Radeon HD 5830 makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this card. It features 1120(224x5) SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 6790, which features core clock speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs as well as 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790 150 Watts
Radeon HD 5830 175 Watts
Difference: 25 Watts (17%)

Memory Bandwidth

The Radeon HD 6790, in theory, should perform a little bit faster than the Radeon HD 5830 in general. (explain)

Radeon HD 6790 134400 MB/sec
Radeon HD 5830 128000 MB/sec
Difference: 6400 (5%)

Texel Rate

The Radeon HD 5830 is a lot (about 33%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 11200 (33%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6790 is superior to the Radeon HD 5830, but not by far. (explain)

Radeon HD 6790 13440 Mpixels/sec
Radeon HD 5830 12800 Mpixels/sec
Difference: 640 (5%)

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

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Radeon HD 5830

Amazon.com

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Radeon HD 6790

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

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Model Radeon HD 5830 Radeon HD 6790
Manufacturer AMD AMD
Year February 25, 2010 April 2011
Code Name Cypress LE Barts LE
Memory 1024 MB 1024 MB
Core Speed 800 MHz 840 MHz
Memory Speed 4000 MHz 4200 MHz
Power (Max TDP) 175 watts 150 watts
Bandwidth 128000 MB/sec 134400 MB/sec
Texel Rate 44800 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 12800 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 1120(224x5) 800
Texture Mapping Units 56 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 2154 million 1700 million
Bus PCIe 2.1 x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon HD 5830

Amazon.com

Check prices at:

Radeon HD 6790

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.

Comments

7 Responses to “Radeon HD 5830 vs Radeon HD 6790”
AlexRoKilla says:

I dont know.....i want to buy 1 of these video card but i dont know which one...from i saw up i think HD 5830 it's better than 6790.

Sftat achzitionare placa video 500 RON says:

[...] pe Full HD si sa joci Crysis2 care pune in fund si GTX580 (oarecum,depinde ce pretentii ai) ). 6790 vs 5830 => n-as da cu aproape 100ron in + pe 6790. Nu poti opta decat pentru GTS450 daca vrei sa dai [...]

Sapphire 6790 VS 5830 Xtreme - My Garage says:

[...] aici: http://www.hwcompare.com/10008/radeo...adeon-hd-6790/ Si aici:http://www.youtube.com/watch?v=AUyYT...eature=related pentru GTX460 vs 5830. 6790 isi ia [...]

ska says:

both of these cards have more or less the same perfomance,butt the 6790 have a more recent chips,and supports direct eyefinity multidisplay connection from 1 card,with no need for eyefitity adaptor,have the minidisplay adaptors included!this adaptor/hub for the hd5xxx series cost about 80 100 dollars and is not 4 sale yet,coming next year,any of these cards will outperform the 550ti+!or spent some more and go for a 6850/6870!69xx are still expensive!new hd6xxx supports 3d tecnology,but is not the same as seen on geforce series!!!and please people,STOP WITH THE NVIDIA/ATI WAR!!!ITS THE SAME WITH INTEL/AMD!BOTH GOOD CHIPS MAKERS,I PREFERE AMD/ati,because they are cheaper,and there motherboards and cpu`s can be upgraded easy,not like intel were a new lga-775 cpu does manytimes not fit a board lga-775 with more then 2 years!update bios/cpu code and some times it will work!please before you buy a board/card,look at sites like this one http://www.hwcompare.com and compare/look at benchmarks ect,and google/surf for the best price!!!cheers from ska portugal

5830 vs 6790 says:

[...] [...]

Anthony says:

Hey there, according to this Alex is right. That is if you are gaming on the 5830 which is what card I have. He was right that it is a better card slightly than the 6790. The blu-ray playback and youtube hd scores were lower, but who cares since even a low end card can play blu-ray. Maybe a graphics editor would care? Pretty close though, but for games 5830 better and cheaper
http://www.hardwareheaven.com/reviews/1148/pg15/sapphire-radeon-hd-6790-graphics-card-review-power-temp-noise-oc.html

gamer says:

5830 = 6790 (fps), because of TDP and OpenGL 6790 win.

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