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GeForce GTS 450 1GB vs Radeon HD 6750

Intro

The GeForce GTS 450 1GB features clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 TAUs and 16 ROPs.

Compare those specs to the Radeon HD 6750, which features GPU core speed of 725 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 720 Stream Processors, 36 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Radeon HD 6750, in theory, should be a little bit faster than the GeForce GTS 450 1GB in general. (explain)

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

Texel Rate

The Radeon HD 6750 is a small bit (about 4%) better at AF than the GeForce GTS 450 1GB. (explain)

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

Pixel Rate

The GeForce GTS 450 1GB should be a small bit (approximately 8%) better at full screen anti-aliasing than the Radeon HD 6750, and also able to handle higher resolutions without slowing down too much. (explain)

GeForce GTS 450 1GB 12528 Mpixels/sec
Radeon HD 6750 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 1GB

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 GTS 450 1GB Radeon HD 6750
Manufacturer nVidia AMD
Year September 2010 January 2011
Code Name GF106 Juniper Pro
Memory 1024 MB 512 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 4.0

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 450 1GB

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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