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GeForce GTS 450 vs Radeon HD 6750 1GB

Intro

The GeForce GTS 450 features a clock frequency of 783 MHz and a GDDR5 memory speed of 902 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 192 SPUs, 32 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon HD 6750 1GB, which features core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs as well as 36 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
GeForce GTS 450 106 Watts
Difference: 20 Watts (23%)

Memory Bandwidth

Performance-wise, the Radeon HD 6750 1GB should theoretically be a small bit better than the GeForce GTS 450 in general. (explain)

Radeon HD 6750 1GB 64000 MB/sec
GeForce GTS 450 57728 MB/sec
Difference: 6272 (11%)

Texel Rate

The Radeon HD 6750 1GB will be a small bit (about 4%) more effective at anisotropic filtering than the GeForce GTS 450. (explain)

Radeon HD 6750 1GB 26100 Mtexels/sec
GeForce GTS 450 25056 Mtexels/sec
Difference: 1044 (4%)

Pixel Rate

The GeForce GTS 450 is a little bit (more or less 8%) faster with regards to AA than the Radeon HD 6750 1GB, and will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTS 450 12528 Mpixels/sec
Radeon HD 6750 1GB 11600 Mpixels/sec
Difference: 928 (8%)

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 GTS 450

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 GTS 450 Radeon HD 6750 1GB
Manufacturer nVidia AMD
Year September 2010 January 2011
Code Name GF106 Juniper Pro
Memory 512 MB 1024 MB
Core Speed 783 MHz 725 MHz
Memory Speed 3608 MHz 4000 MHz
Power (Max TDP) 106 watts 86 watts
Bandwidth 57728 MB/sec 64000 MB/sec
Texel Rate 25056 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 192 720
Texture Mapping Units 32 36
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved past 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 memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 figure is worked out by multiplying the total texture units by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 450

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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