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GeForce 8800 Ultra vs Radeon R9 M270X

Intro

The GeForce 8800 Ultra has a core clock speed of 612 MHz and a GDDR3 memory speed of 1080 MHz. It also features a 384-bit memory bus, and makes use of a 90 nm design. It features 128 SPUs, 64 Texture Address Units, and 24 Raster Operation Units.

Compare those specifications to the Radeon R9 M270X, which makes use of a 28 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 RAM is set to run at a speed of 1125 MHz on this particular card. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 8800 Ultra, in theory, should perform much faster than the Radeon R9 M270X in general. (explain)

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

Texel Rate

The GeForce 8800 Ultra is quite a bit (about 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 is a lot (more or less 27%) more effective at FSAA than the Radeon R9 M270X, and also will be capable of handling higher resolutions while still performing well. (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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max 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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