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GeForce GTX 275 vs GeForce GTX 980M

Intro

The GeForce GTX 275 comes with a clock speed of 633 MHz and a GDDR3 memory speed of 1134 MHz. It also makes use of a 448-bit bus, and makes use of a 55 nm design. It is made up of 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Compare that to the GeForce GTX 980M, which has core speeds of 1038 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1536 SPUs along with 96 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M 100 Watts
GeForce GTX 275 219 Watts
Difference: 119 Watts (119%)

Memory Bandwidth

In theory, the GeForce GTX 980M will be 1% faster than the GeForce GTX 275 overall, due to its higher data rate. (explain)

GeForce GTX 980M 128000 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 992 (1%)

Texel Rate

The GeForce GTX 980M is quite a bit (about 97%) better at AF than the GeForce GTX 275. (explain)

GeForce GTX 980M 99648 Mtexels/sec
GeForce GTX 275 50640 Mtexels/sec
Difference: 49008 (97%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980M is a better choice, by a large margin. (explain)

GeForce GTX 980M 66432 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 48708 (275%)

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 275

Amazon.com

Check prices at:

GeForce GTX 980M

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 275 GeForce GTX 980M
Manufacturer nVidia nVidia
Year April 9, 2009 October 7 2014
Code Name G200b GM204
Memory 896 MB 4096 MB
Core Speed 633 MHz 1038 MHz
Memory Speed 2268 MHz 4000 MHz
Power (Max TDP) 219 watts 100 watts
Bandwidth 127008 MB/sec 128000 MB/sec
Texel Rate 50640 Mtexels/sec 99648 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 66432 Mpixels/sec
Unified Shaders 240 1536
Texture Mapping Units 80 96
Render Output Units 28 64
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12
OpenGL Version OpenGL 3.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at 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 card could 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 980M

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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