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Geforce GTX 680 vs Radeon HD 5750 1GB

Intro

The Geforce GTX 680 makes use of a 28 nm design. nVidia has clocked the core speed at 1006 MHz. The GDDR5 RAM works at a speed of 1502 MHz on this card. It features 1536 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Radeon HD 5750 1GB, which has a GPU core clock speed of 700 MHz, and 1024 MB of GDDR5 RAM set to run at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB 86 Watts
Geforce GTX 680 195 Watts
Difference: 109 Watts (127%)

Memory Bandwidth

In theory, the Geforce GTX 680 should be a lot faster than the Radeon HD 5750 1GB in general. (explain)

Geforce GTX 680 192256 MB/sec
Radeon HD 5750 1GB 73600 MB/sec
Difference: 118656 (161%)

Texel Rate

The Geforce GTX 680 should be a lot (more or less 411%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

Geforce GTX 680 128768 Mtexels/sec
Radeon HD 5750 1GB 25200 Mtexels/sec
Difference: 103568 (411%)

Pixel Rate

If running with a high screen resolution is important to you, then the Geforce GTX 680 is a better choice, and very much so. (explain)

Geforce GTX 680 32192 Mpixels/sec
Radeon HD 5750 1GB 11200 Mpixels/sec
Difference: 20992 (187%)

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 680

Amazon.com

Radeon HD 5750 1GB

Amazon.com

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 680 Radeon HD 5750 1GB
Manufacturer nVidia AMD
Year March 2012 October 13, 2009
Code Name GK104 Juniper LE
Memory 2048 MB 1024 MB
Core Speed 1006 MHz 700 MHz
Memory Speed 6008 MHz 4600 MHz
Power (Max TDP) 195 watts 86 watts
Bandwidth 192256 MB/sec 73600 MB/sec
Texel Rate 128768 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 1536 720(144x5)
Texture Mapping Units 128 36
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 28 nm 40 nm
Transistors 3540 million 1040 million
Bus PCIe 3.0 x16 PCIe 2.1 x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 3.2

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 are processed per second. This is calculated 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

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