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GeForce GTX 880M vs Radeon HD 4850 1GB

Intro

The GeForce GTX 880M makes use of a 28 nm design. nVidia has clocked the core speed at 954 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this card. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon HD 4850 1GB, which has a clock speed of 625 MHz and a GDDR4 memory speed of 993 MHz. It also features a 256-bit bus, and uses a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 1GB 110 Watts
GeForce GTX 880M 130 Watts
Difference: 20 Watts (18%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 880M should perform much faster than the Radeon HD 4850 1GB in general. (explain)

GeForce GTX 880M 128000 MB/sec
Radeon HD 4850 1GB 63552 MB/sec
Difference: 64448 (101%)

Texel Rate

The GeForce GTX 880M will be a lot (about 388%) better at anisotropic filtering than the Radeon HD 4850 1GB. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 4850 1GB 25000 Mtexels/sec
Difference: 97112 (388%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 880M is superior to the Radeon HD 4850 1GB, and very much so. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 4850 1GB 10000 Mpixels/sec
Difference: 20528 (205%)

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 4850 1GB

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 4850 1GB
Manufacturer nVidia AMD
Year March 12 2014 Jun 25, 2008
Code Name GK104 RV770 PRO
Memory 4096 MB 1024 MB
Core Speed 954 MHz 625 MHz
Memory Speed 4000 MHz 1986 MHz
Power (Max TDP) 130 watts 110 watts
Bandwidth 128000 MB/sec 63552 MB/sec
Texel Rate 122112 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 1536 800(160x5)
Texture Mapping Units 128 40
Render Output Units 32 16
Bus Type GDDR5 GDDR4
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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling 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 graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. 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 quite a few other factors, especially the memory bandwidth - the lower the 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 4850 1GB

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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