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Radeon HD 4830 1GB vs Radeon R9 M290X

Intro

The Radeon HD 4830 1GB comes with a GPU core speed of 575 MHz, and the 1024 MB of GDDR4 memory is set to run at 900 MHz through a 256-bit bus. It also features 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Compare all that to the Radeon R9 M290X, which features core 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.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4830 1GB 95 Watts
Radeon R9 M290X 100 Watts
Difference: 5 Watts (5%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M290X should be 167% quicker than the Radeon HD 4830 1GB in general, due to its higher bandwidth. (explain)

Radeon R9 M290X 153600 MB/sec
Radeon HD 4830 1GB 57600 MB/sec
Difference: 96000 (167%)

Texel Rate

The Radeon R9 M290X will be a lot (approximately 270%) more effective at anisotropic filtering than the Radeon HD 4830 1GB. (explain)

Radeon R9 M290X 68000 Mtexels/sec
Radeon HD 4830 1GB 18400 Mtexels/sec
Difference: 49600 (270%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M290X is a better choice, by a large margin. (explain)

Radeon R9 M290X 27200 Mpixels/sec
Radeon HD 4830 1GB 9200 Mpixels/sec
Difference: 18000 (196%)

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 4830 1GB

Amazon.com

Check prices at:

Radeon R9 M290X

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 4830 1GB Radeon R9 M290X
Manufacturer AMD AMD
Year Oct 21, 2008 May 1 2014
Code Name RV770 LE Neptune XT
Memory 1024 MB 4096 MB
Core Speed 575 MHz 850 MHz
Memory Speed 1800 MHz 4800 MHz
Power (Max TDP) 95 watts 100 watts
Bandwidth 57600 MB/sec 153600 MB/sec
Texel Rate 18400 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 9200 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 640(128x5) 1280
Texture Mapping Units 32 80
Render Output Units 16 32
Bus Type GDDR4 GDDR5
Bus Width 256-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 956 million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 max fill rate.

Display Prices

Hide Prices

Radeon HD 4830 1GB

Amazon.com

Check prices at:

Radeon R9 M290X

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.

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