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GeForce GTS 450 vs Radeon HD 6750

Intro

The GeForce GTS 450 comes with a core clock speed of 783 MHz and a GDDR5 memory frequency of 902 MHz. It also uses a 128-bit 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, which comes with a core clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the Radeon HD 6750 should in theory be a little bit better than the GeForce GTS 450 in general. (explain)

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

Texel Rate

The Radeon HD 6750 will be just a bit (approximately 4%) better at texture filtering than the GeForce GTS 450. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTS 450 is superior to the Radeon HD 6750, but only just. (explain)

GeForce GTS 450 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

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 Radeon HD 6750
Manufacturer nVidia AMD
Year September 2010 January 2011
Code Name GF106 Juniper Pro
Memory 512 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 (in units of MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's 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 fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTS 450

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.

Comments

3 Responses to “GeForce GTS 450 vs Radeon HD 6750”
Need advise on Graphics card - Tech Support Forums - TechIMO.com says:

[...] 2 you picked, look pretty close. in performance. GeForce GTS 450 vs Radeon HD 6750 – Performance Comparison Benchmarks @ Hardware Compare. I believe the 6750, is a re-badged 5750 They both require a 450watt power supply. If you get, or [...]

Placa Video - Page 2 - My Garage says:

[...] [...]

[NBA] Which GPU is Better - Choose from the list says:

[...] power consumption but the hd 6770 is by far better than both take a look at the comparison below GeForce GTS 450 vs Radeon HD 6750 – Performance Comparison Benchmarks @ Hardware Compare Radeon HD 6750 vs Radeon HD 6770 – Performance Comparison Benchmarks @ Hardware [...]

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