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GeForce 8800 GTS (G80) 320MB vs Radeon R9 M265X

Intro

The GeForce 8800 GTS (G80) 320MB has clock speeds of 513 MHz on the GPU, and 792 MHz on the 320 MB of GDDR3 memory. It features 96 SPUs as well as 48 TAUs and 20 Rasterization Operator Units.

Compare those specifications to the Radeon R9 M265X, which has a core clock frequency of 575 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M265X should theoretically be just a bit faster than the GeForce 8800 GTS (G80) 320MB overall. (explain)

Radeon R9 M265X 72000 MB/sec
GeForce 8800 GTS (G80) 320MB 63360 MB/sec
Difference: 8640 (14%)

Texel Rate

The GeForce 8800 GTS (G80) 320MB is just a bit (approximately 7%) better at anisotropic filtering than the Radeon R9 M265X. (explain)

GeForce 8800 GTS (G80) 320MB 24624 Mtexels/sec
Radeon R9 M265X 23000 Mtexels/sec
Difference: 1624 (7%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8800 GTS (G80) 320MB is the winner, not by a very large margin though. (explain)

GeForce 8800 GTS (G80) 320MB 10260 Mpixels/sec
Radeon R9 M265X 9200 Mpixels/sec
Difference: 1060 (12%)

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 8800 GTS (G80) 320MB

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 8800 GTS (G80) 320MB Radeon R9 M265X
Manufacturer nVidia AMD
Year Feb 2007 May 1 2014
Code Name G80 Venus Pro
Memory 320 MB 2048 MB
Core Speed 513 MHz 575 MHz
Memory Speed 1584 MHz 4500 MHz
Power (Max TDP) 143 watts (Unknown) watts
Bandwidth 63360 MB/sec 72000 MB/sec
Texel Rate 24624 Mtexels/sec 23000 Mtexels/sec
Pixel Rate 10260 Mpixels/sec 9200 Mpixels/sec
Unified Shaders 96 640
Texture Mapping Units 48 40
Render Output Units 20 16
Bus Type GDDR3 GDDR5
Bus Width 320-bit 128-bit
Fab Process 90 nm 28 nm
Transistors 681 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at 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 chip could possibly record to the 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 8800 GTS (G80) 320MB

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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