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GeForce GTX 880M vs Radeon R9 M290X

Intro

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

Compare those specifications to the Radeon R9 M290X, which has a core clock speed of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

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

Theoretically, the Radeon R9 M290X should perform just a bit faster than the GeForce GTX 880M in general. (explain)

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

Texel Rate

The GeForce GTX 880M should be a lot (more or less 80%) better at texture 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 a small bit (approximately 12%) more effective at AA than the Radeon R9 M290X, and should be capable of handling higher resolutions better. (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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock 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 quite a few other factors, most notably the memory bandwidth - the lower the 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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