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GeForce GTX 880M vs Radeon R9 M290X

Intro

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

Compare those specifications to the Radeon R9 M290X, which makes use of a 28 nm design. AMD has set the core speed at 850 MHz. The GDDR5 RAM works at a frequency of 1200 MHz on this card. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X 100 Watts
GeForce GTX 880M 130 Watts
Difference: 30 Watts (30%)

Memory Bandwidth

The Radeon R9 M290X, in theory, should perform a little bit faster than the GeForce GTX 880M overall. (explain)

Radeon R9 M290X 153600 MB/sec
GeForce GTX 880M 128000 MB/sec
Difference: 25600 (20%)

Texel Rate

The GeForce GTX 880M will be much (about 80%) better at anisotropic filtering than the Radeon R9 M290X. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon R9 M290X 68000 Mtexels/sec
Difference: 54112 (80%)

Pixel Rate

The GeForce GTX 880M is just a bit (about 12%) faster with regards to AA than the Radeon R9 M290X, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon R9 M290X 27200 Mpixels/sec
Difference: 3328 (12%)

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 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 GeForce GTX 880M Radeon R9 M290X
Manufacturer nVidia AMD
Year March 12 2014 May 1 2014
Code Name GK104 Neptune XT
Memory 4096 MB 4096 MB
Core Speed 954 MHz 850 MHz
Memory Speed 4000 MHz 4800 MHz
Power (Max TDP) 130 watts 100 watts
Bandwidth 128000 MB/sec 153600 MB/sec
Texel Rate 122112 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 1536 1280
Texture Mapping Units 128 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 880M

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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