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GeForce GTS 450 1GB vs Radeon R9 M275X

Intro

The GeForce GTS 450 1GB features a clock speed of 783 MHz and a GDDR5 memory frequency of 902 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It features 192 SPUs, 32 TAUs, and 16 Raster Operation Units.

Compare those specifications to the Radeon R9 M275X, which comes with a core clock speed of 900 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, 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

The Radeon R9 M275X should in theory perform a lot faster than 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 (more or less 44%) faster with regards to texture filtering 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 should be a bit (about 15%) better at FSAA than the GeForce GTS 450 1GB, and will be capable of handling higher resolutions more effectively. (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: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability 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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