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GeForce GTS 450 1GB vs Radeon R9 M395X

Intro

The GeForce GTS 450 1GB features a GPU core speed of 783 MHz, and the 1024 MB of GDDR5 memory runs at 902 MHz through a 128-bit bus. It also is made up of 192 SPUs, 32 Texture Address Units, and 16 ROPs.

Compare that to the Radeon R9 M395X, which features GPU core speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB 106 Watts
Radeon R9 M395X 125 Watts
Difference: 19 Watts (18%)

Memory Bandwidth

In theory, the Radeon R9 M395X will be 177% quicker than the GeForce GTS 450 1GB in general, because of its higher data rate. (explain)

Radeon R9 M395X 160000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 102272 (177%)

Texel Rate

The Radeon R9 M395X is quite a bit (more or less 269%) faster with regards to anisotropic filtering than the GeForce GTS 450 1GB. (explain)

Radeon R9 M395X 92544 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 67488 (269%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M395X is a better choice, and very much so. (explain)

Radeon R9 M395X 23136 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 10608 (85%)

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 M395X

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 M395X
Manufacturer nVidia AMD
Year September 2010 2015
Code Name GF106 Tonga
Memory 1024 MB 4096 MB
Core Speed 783 MHz 723 MHz
Memory Speed 3608 MHz 5000 MHz
Power (Max TDP) 106 watts 125 watts
Bandwidth 57728 MB/sec 160000 MB/sec
Texel Rate 25056 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 192 2048
Texture Mapping Units 32 128
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-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 largest amount of information (in units of megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, 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 the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 450 1GB

Amazon.com

Check prices at:

Radeon R9 M395X

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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