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GeForce 9800 GT 512MB vs Radeon R9 M270X

Intro

The GeForce 9800 GT 512MB uses a 65/55 nm design. nVidia has set the core speed at 600 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this model. It features 112 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon R9 M270X, which has GPU core speed of 725 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.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M270X should be 25% faster than the GeForce 9800 GT 512MB in general, because of its greater bandwidth. (explain)

Radeon R9 M270X 72000 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 14400 (25%)

Texel Rate

The GeForce 9800 GT 512MB is a bit (about 16%) more effective at AF than the Radeon R9 M270X. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 4600 (16%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M270X is the winner, by far. (explain)

Radeon R9 M270X 11600 Mpixels/sec
GeForce 9800 GT 512MB 9600 Mpixels/sec
Difference: 2000 (21%)

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 9800 GT 512MB

Amazon.com

Check prices at:

Radeon R9 M270X

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 9800 GT 512MB Radeon R9 M270X
Manufacturer nVidia AMD
Year July 2008 May 1 2014
Code Name G92a/b Venus XT
Memory 512 MB 2048 MB
Core Speed 600 MHz 725 MHz
Memory Speed 1800 MHz 4500 MHz
Power (Max TDP) 105 watts (Unknown) watts
Bandwidth 57600 MB/sec 72000 MB/sec
Texel Rate 33600 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 112 640
Texture Mapping Units 56 40
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 28 nm
Transistors 754 million (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 9800 GT 512MB

Amazon.com

Check prices at:

Radeon R9 M270X

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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