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GeForce GTX 880M vs Radeon HD 4830 512MB

Intro

The GeForce GTX 880M has a core clock speed of 954 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 ROPs.

Compare those specs to the Radeon HD 4830 512MB, which features GPU core speed of 575 MHz, and 512 MB of GDDR3 RAM running at 900 MHz through a 256-bit bus. It also is made up of 640(128x5) Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4830 512MB 95 Watts
GeForce GTX 880M 130 Watts
Difference: 35 Watts (37%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 880M should in theory be a lot superior to the Radeon HD 4830 512MB in general. (explain)

GeForce GTX 880M 128000 MB/sec
Radeon HD 4830 512MB 57600 MB/sec
Difference: 70400 (122%)

Texel Rate

The GeForce GTX 880M will be a lot (approximately 564%) more effective at texture filtering than the Radeon HD 4830 512MB. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 4830 512MB 18400 Mtexels/sec
Difference: 103712 (564%)

Pixel Rate

The GeForce GTX 880M will be much (about 232%) more effective at full screen anti-aliasing than the Radeon HD 4830 512MB, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 4830 512MB 9200 Mpixels/sec
Difference: 21328 (232%)

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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GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 4830 512MB

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 GeForce GTX 880M Radeon HD 4830 512MB
Manufacturer nVidia AMD
Year March 12 2014 Oct 21, 2008
Code Name GK104 RV770 LE
Memory 4096 MB 512 MB
Core Speed 954 MHz 575 MHz
Memory Speed 4000 MHz 1800 MHz
Power (Max TDP) 130 watts 95 watts
Bandwidth 128000 MB/sec 57600 MB/sec
Texel Rate 122112 Mtexels/sec 18400 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 1536 640(128x5)
Texture Mapping Units 128 32
Render Output Units 32 16
Bus Type GDDR5 GDDR3
Bus Width 256-bit 256-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once 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 number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total 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 applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 4830 512MB

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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