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GeForce GTX 650 vs Radeon HD 5550

Intro

The GeForce GTX 650 features a clock speed of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 32 Texture Address Units, and 16 ROPs.

Compare those specifications to the Radeon HD 5550, which has core speeds of 550 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 320(64x5) SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GTX 650 should perform a lot faster than the Radeon HD 5550 in general. (explain)

GeForce GTX 650 80000 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 67200 (525%)

Texel Rate

The GeForce GTX 650 will be a lot (more or less 285%) faster with regards to AF than the Radeon HD 5550. (explain)

GeForce GTX 650 33856 Mtexels/sec
Radeon HD 5550 8800 Mtexels/sec
Difference: 25056 (285%)

Pixel Rate

The GeForce GTX 650 is much (about 285%) faster with regards to FSAA than the Radeon HD 5550, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon HD 5550 4400 Mpixels/sec
Difference: 12528 (285%)

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 HD 5550

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 HD 5550
Manufacturer nVidia AMD
Year September 2012 February 9, 2010
Code Name GK107 Redwood LE
Memory 1024 MB 512 MB
Core Speed 1058 MHz 550 MHz
Memory Speed 5000 MHz 800 MHz
Power (Max TDP) 64 watts (Unknown) watts
Bandwidth 80000 MB/sec 12800 MB/sec
Texel Rate 33856 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 384 320(64x5)
Texture Mapping Units 32 16
Render Output Units 16 8
Bus Type GDDR5 DDR2
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors 1300 million 627 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 record to the local memory per 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 650

Amazon.com

Check prices at:

Radeon HD 5550

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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