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GeForce GTS 450 1GB vs Radeon R9 M275X

Intro

The GeForce GTS 450 1GB has core clock speeds of 783 MHz on the GPU, and 902 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

Compare those specifications to the Radeon R9 M275X, which features a GPU core clock speed of 900 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce GTS 450 1GB 106 Watts
Difference: 56 Watts (112%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M275X should theoretically be quite a bit superior to the GeForce GTS 450 1GB in general. (explain)

Radeon R9 M275X 72000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 14272 (25%)

Texel Rate

The Radeon R9 M275X should be quite a bit (about 44%) better at AF than the GeForce GTS 450 1GB. (explain)

Radeon R9 M275X 36000 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 10944 (44%)

Pixel Rate

The Radeon R9 M275X is just a bit (more or less 15%) faster with regards to AA than the GeForce GTS 450 1GB, and able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 M275X 14400 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 1872 (15%)

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 R9 M275X

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 R9 M275X
Manufacturer nVidia AMD
Year September 2010 May 1 2014
Code Name GF106 Venus XTX
Memory 1024 MB 2048 MB
Core Speed 783 MHz 900 MHz
Memory Speed 3608 MHz 4500 MHz
Power (Max TDP) 106 watts 50 watts
Bandwidth 57728 MB/sec 72000 MB/sec
Texel Rate 25056 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 192 640
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1170 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory 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 R9 M275X

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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