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GeForce GTX 275 vs Radeon HD 6750 1GB

Intro

The GeForce GTX 275 features a core clock speed of 633 MHz and a GDDR3 memory frequency of 1134 MHz. It also uses a 448-bit bus, and uses a 55 nm design. It features 240 SPUs, 80 TAUs, and 28 Raster Operation Units.

Compare all that to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this card. It features 720 SPUs as well as 36 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
GeForce GTX 275 219 Watts
Difference: 133 Watts (155%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 275 should in theory be much better than the Radeon HD 6750 1GB in general. (explain)

GeForce GTX 275 127008 MB/sec
Radeon HD 6750 1GB 64000 MB/sec
Difference: 63008 (98%)

Texel Rate

The GeForce GTX 275 should be quite a bit (about 94%) faster with regards to anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 275 50640 Mtexels/sec
Radeon HD 6750 1GB 26100 Mtexels/sec
Difference: 24540 (94%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 275 is a better choice, by far. (explain)

GeForce GTX 275 17724 Mpixels/sec
Radeon HD 6750 1GB 11600 Mpixels/sec
Difference: 6124 (53%)

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 275

Amazon.com

Check prices at:

Radeon HD 6750 1GB

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 275 Radeon HD 6750 1GB
Manufacturer nVidia AMD
Year April 9, 2009 January 2011
Code Name G200b Juniper Pro
Memory 896 MB 1024 MB
Core Speed 633 MHz 725 MHz
Memory Speed 2268 MHz 4000 MHz
Power (Max TDP) 219 watts 86 watts
Bandwidth 127008 MB/sec 64000 MB/sec
Texel Rate 50640 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 240 720
Texture Mapping Units 80 36
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 1040 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate 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 filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 275

Amazon.com

Check prices at:

Radeon HD 6750 1GB

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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