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GeForce GTX 880M vs Radeon HD 4870 1GB

Intro

The GeForce GTX 880M features a core clock frequency of 954 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 4870 1GB, which features a clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M 130 Watts
Radeon HD 4870 1GB 150 Watts
Difference: 20 Watts (15%)

Memory Bandwidth

In theory, the GeForce GTX 880M should be a little bit faster than the Radeon HD 4870 1GB in general. (explain)

GeForce GTX 880M 128000 MB/sec
Radeon HD 4870 1GB 115200 MB/sec
Difference: 12800 (11%)

Texel Rate

The GeForce GTX 880M should be much (more or less 307%) better at AF than the Radeon HD 4870 1GB. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 4870 1GB 30000 Mtexels/sec
Difference: 92112 (307%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 880M is a better choice, by far. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 4870 1GB 12000 Mpixels/sec
Difference: 18528 (154%)

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 4870 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 4870 1GB
Manufacturer nVidia AMD
Year March 12 2014 Jun 25, 2008
Code Name GK104 RV770 XT
Memory 4096 MB 1024 MB
Core Speed 954 MHz 750 MHz
Memory Speed 4000 MHz 3600 MHz
Power (Max TDP) 130 watts 150 watts
Bandwidth 128000 MB/sec 115200 MB/sec
Texel Rate 122112 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 1536 800(160x5)
Texture Mapping Units 128 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
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 megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a 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 filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 4870 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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