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GeForce 9800 GT 512MB vs Radeon R9 M265X

Intro

The GeForce 9800 GT 512MB has a clock frequency of 600 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 256-bit bus, and uses a 65/55 nm design. It is comprised of 112 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the Radeon R9 M265X, which makes use of a 28 nm design. AMD has set the core frequency at 575 MHz. The GDDR5 RAM is set to run at a frequency of 1125 MHz on this model. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M265X, in theory, should perform much faster than the GeForce 9800 GT 512MB in general. (explain)

Radeon R9 M265X 72000 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 14400 (25%)

Texel Rate

The GeForce 9800 GT 512MB will be a lot (more or less 46%) more effective at texture filtering than the Radeon R9 M265X. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 10600 (46%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 9800 GT 512MB is superior to the Radeon R9 M265X, but not by far. (explain)

GeForce 9800 GT 512MB 9600 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 400 (4%)

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

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Radeon R9 M265X

Amazon.com

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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 M265X
Manufacturer nVidia AMD
Year July 2008 May 1 2014
Code Name G92a/b Venus Pro
Memory 512 MB 2048 MB
Core Speed 600 MHz 575 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 23000 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 9200 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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock 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 amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 9800 GT 512MB

Amazon.com

Check prices at:

Radeon R9 M265X

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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