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GeForce GTS 450 1GB vs Radeon HD 5670

Intro

The GeForce GTS 450 1GB comes with a GPU clock speed of 783 MHz, and the 1024 MB of GDDR5 RAM is set to run at 902 MHz through a 128-bit bus. It also features 192 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Compare all that to the Radeon HD 5670, which has a GPU core clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
GeForce GTS 450 1GB 106 Watts
Difference: 45 Watts (74%)

Memory Bandwidth

Performance-wise, the Radeon HD 5670 should in theory be just a bit better than the GeForce GTS 450 1GB in general. (explain)

Radeon HD 5670 64000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 6272 (11%)

Texel Rate

The GeForce GTS 450 1GB is a lot (approximately 62%) more effective at AF than the Radeon HD 5670. (explain)

GeForce GTS 450 1GB 25056 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 9556 (62%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTS 450 1GB is the winner, by far. (explain)

GeForce GTS 450 1GB 12528 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 6328 (102%)

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 5670

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 5670
Manufacturer nVidia AMD
Year September 2010 January 14, 2010
Code Name GF106 Redwood XT
Memory 1024 MB 1024 MB
Core Speed 783 MHz 775 MHz
Memory Speed 3608 MHz 4000 MHz
Power (Max TDP) 106 watts 61 watts
Bandwidth 57728 MB/sec 64000 MB/sec
Texel Rate 25056 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 192 400(80x5)
Texture Mapping Units 32 20
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 627 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTS 450 1GB

Amazon.com

Check prices at:

Radeon HD 5670

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

2 Responses to “GeForce GTS 450 1GB vs Radeon HD 5670”
Placa ViDeo - My Garage says:

[...] in ceea ce priveste performanta acesteia. Uite, aici ai o comparatie directa intre cele doua: http://www.hwcompare.com/7753/geforc...adeon-hd-5670/ Eu recomand un efort de 100 de lei, pentru a lua asta: Va rugam activati JavaScript in [...]

castor valdez says:

can i replace hd 6770 to gts450

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