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GeForce GTX 650 vs Radeon R9 M380

Intro

The GeForce GTX 650 comes with a GPU core speed of 1058 MHz, and the 1024 MB of GDDR5 memory runs at 1250 MHz through a 128-bit bus. It also is made up of 384 SPUs, 32 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon R9 M380, which features a clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M380 should be 20% faster than the GeForce GTX 650 overall, because of its higher bandwidth. (explain)

Radeon R9 M380 96000 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 16000 (20%)

Texel Rate

The Radeon R9 M380 should be just a bit (more or less 18%) more effective at AF than the GeForce GTX 650. (explain)

Radeon R9 M380 40000 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 6144 (18%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 650 is superior to the Radeon R9 M380, not by a very large margin though. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon R9 M380 16000 Mpixels/sec
Difference: 928 (6%)

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 650

Amazon.com

Check prices at:

Radeon R9 M380

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 650 Radeon R9 M380
Manufacturer nVidia AMD
Year September 2012 2015
Code Name GK107 Cape Verde
Memory 1024 MB 4096 MB
Core Speed 1058 MHz 1000 MHz
Memory Speed 5000 MHz 6000 MHz
Power (Max TDP) 64 watts (Unknown) watts
Bandwidth 80000 MB/sec 96000 MB/sec
Texel Rate 33856 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 384 640
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1300 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It is 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 it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 650

Amazon.com

Check prices at:

Radeon R9 M380

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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