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Geforce GTX 680 vs Radeon HD 5750 1GB

Intro

The Geforce GTX 680 has a clock speed of 1006 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon HD 5750 1GB, which features a core clock speed of 700 MHz and a GDDR5 memory frequency 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 Raster Operation Units.

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

Theoretically speaking, the Geforce GTX 680 will be 161% faster than the Radeon HD 5750 1GB in general, due to its greater data rate. (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 (approximately 411%) faster with regards to AF 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 resolution is important to you, then the Geforce GTX 680 is a better choice, by far. (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 6008 MHz 4600 MHz
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 information (counted in megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number 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 video 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 amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

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