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GeForce GTS 450 1GB vs Radeon R9 M385X

Intro

The GeForce GTS 450 1GB comes with a core 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 is made up of 192 SPUs, 32 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular card. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M385X should be much faster than the GeForce GTS 450 1GB overall. (explain)

Radeon R9 M385X 96000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 38272 (66%)

Texel Rate

The Radeon R9 M385X will be quite a bit (approximately 146%) more effective at AF than the GeForce GTS 450 1GB. (explain)

Radeon R9 M385X 61600 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 36544 (146%)

Pixel Rate

The Radeon R9 M385X is quite a bit (about 40%) better at FSAA than the GeForce GTS 450 1GB, and should be capable of handling higher resolutions better. (explain)

Radeon R9 M385X 17600 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 5072 (40%)

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 M385X

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 M385X
Manufacturer nVidia AMD
Year September 2010 2015
Code Name GF106 Bonaire
Memory 1024 MB 4096 MB
Core Speed 783 MHz 1100 MHz
Memory Speed 3608 MHz 6000 MHz
Power (Max TDP) 106 watts (Unknown) watts
Bandwidth 57728 MB/sec 96000 MB/sec
Texel Rate 25056 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 192 896
Texture Mapping Units 32 56
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 12
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - 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 1GB

Amazon.com

Check prices at:

Radeon R9 M385X

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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