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GeForce 8800 GTX vs Radeon R9 M270X

Intro

The GeForce 8800 GTX features a core clock frequency of 575 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 384-bit memory bus, and uses a 90 nm design. It is comprised of 128 SPUs, 64 TAUs, and 24 ROPs.

Compare that to the Radeon R9 M270X, which comes with GPU clock speed of 725 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce 8800 GTX should in theory be just a bit superior to the Radeon R9 M270X overall. (explain)

GeForce 8800 GTX 86400 MB/sec
Radeon R9 M270X 72000 MB/sec
Difference: 14400 (20%)

Texel Rate

The GeForce 8800 GTX will be quite a bit (approximately 27%) better at anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce 8800 GTX 36800 Mtexels/sec
Radeon R9 M270X 29000 Mtexels/sec
Difference: 7800 (27%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 8800 GTX is superior to the Radeon R9 M270X, but it probably won't make a huge difference. (explain)

GeForce 8800 GTX 13800 Mpixels/sec
Radeon R9 M270X 11600 Mpixels/sec
Difference: 2200 (19%)

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 GTX

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 GTX Radeon R9 M270X
Manufacturer nVidia AMD
Year Nov 2006 May 1 2014
Code Name G80 Venus XT
Memory 768 MB 2048 MB
Core Speed 575 MHz 725 MHz
Memory Speed 1800 MHz 4500 MHz
Power (Max TDP) 155 watts (Unknown) watts
Bandwidth 86400 MB/sec 72000 MB/sec
Texel Rate 36800 Mtexels/sec 29000 Mtexels/sec
Pixel Rate 13800 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 maximum 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 card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GTX

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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