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GeForce GTX 650 vs Radeon HD 6750

Intro

The GeForce GTX 650 features a GPU core speed of 1058 MHz, and the 1024 MB of GDDR5 RAM runs at 1250 MHz through a 128-bit bus. It also features 384 SPUs, 32 TAUs, and 16 ROPs.

Compare that to the Radeon HD 6750, which has a clock speed of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It features 720 SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
Radeon HD 6750 86 Watts
Difference: 22 Watts (34%)

Memory Bandwidth

In theory, the GeForce GTX 650 should be much faster than the Radeon HD 6750 in general. (explain)

GeForce GTX 650 80000 MB/sec
Radeon HD 6750 64000 MB/sec
Difference: 16000 (25%)

Texel Rate

The GeForce GTX 650 is quite a bit (approximately 30%) more effective at anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 650 33856 Mtexels/sec
Radeon HD 6750 26100 Mtexels/sec
Difference: 7756 (30%)

Pixel Rate

The GeForce GTX 650 should be quite a bit (about 46%) better at full screen anti-aliasing than the Radeon HD 6750, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon HD 6750 11600 Mpixels/sec
Difference: 5328 (46%)

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 6750

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 6750
Manufacturer nVidia AMD
Year September 2012 January 2011
Code Name GK107 Juniper Pro
Memory 1024 MB 512 MB
Core Speed 1058 MHz 725 MHz
Memory Speed 5000 MHz 4000 MHz
Power (Max TDP) 64 watts 86 watts
Bandwidth 80000 MB/sec 64000 MB/sec
Texel Rate 33856 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 384 720
Texture Mapping Units 32 36
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 40 nm
Transistors 1300 million 1040 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.3 OpenGL 4.0

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 650

Amazon.com

Check prices at:

Radeon HD 6750

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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