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Geforce GTX 680 vs Radeon HD 5750 1GB

Intro

The Geforce GTX 680 has a GPU core speed of 1006 MHz, and the 2048 MB of GDDR5 memory is set to run at 1502 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 5750 1GB, which comes with a clock speed of 700 MHz and a GDDR5 memory speed of 1150 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It is comprised of 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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(No game benchmarks for this combination yet.)

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

The Geforce GTX 680 should theoretically perform much 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 quite a bit (approximately 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

The Geforce GTX 680 will be much (more or less 187%) more effective at FSAA than the Radeon HD 5750 1GB, and also able to handle higher resolutions more effectively. (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

Display 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
Fab Process 28 nm 40 nm
Bus PCIe 3.0 x16 PCIe 2.1 x16
Memory 2048 MB 1024 MB
Core Speed 1006 MHz 700 MHz
Shader Speed 1006 MHz (N/A) MHz
Memory Speed 1502 MHz (6008 MHz effective) 1150 MHz (4600 MHz effective)
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
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 3.2
Power (Max TDP) 195 watts 86 watts
Shader Model 5.0 5.0
Bandwidth 192256 MB/sec 73600 MB/sec
Texel Rate 128768 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 11200 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied 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 the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs 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 is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

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