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GeForce 8800 Ultra vs Radeon R9 M270X

Intro

The GeForce 8800 Ultra makes use of a 90 nm design. nVidia has clocked the core speed at 612 MHz. The GDDR3 memory runs at a frequency of 1080 MHz on this card. It features 128 SPUs along with 64 TAUs and 24 ROPs.

Compare all that to the Radeon R9 M270X, which features a clock speed of 725 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 8800 Ultra is 44% faster than the Radeon R9 M270X in general, due to its greater bandwidth. (explain)

GeForce 8800 Ultra 103680 MB/sec
Radeon R9 M270X 72000 MB/sec
Difference: 31680 (44%)

Texel Rate

The GeForce 8800 Ultra should be much (approximately 35%) more effective at anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce 8800 Ultra 39168 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 10168 (35%)

Pixel Rate

The GeForce 8800 Ultra should be quite a bit (more or less 27%) better at full screen anti-aliasing than the Radeon R9 M270X, and will be able to handle higher resolutions more effectively. (explain)

GeForce 8800 Ultra 14688 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 3088 (27%)

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 Ultra

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 8800 Ultra Radeon R9 M270X
Manufacturer nVidia AMD
Year May 2007 May 1 2014
Code Name G80 Venus XT
Memory 768 MB 2048 MB
Core Speed 612 MHz 725 MHz
Memory Speed 2160 MHz 4500 MHz
Power (Max TDP) 171 watts (Unknown) watts
Bandwidth 103680 MB/sec 72000 MB/sec
Texel Rate 39168 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 128 640
Texture Mapping Units 64 40
Render Output Units 24 16
Bus Type GDDR3 GDDR5
Bus Width 384-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 max amount of data (counted in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce 8800 Ultra

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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