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GeForce 8800 GT 256MB vs Radeon R9 M275X

Intro

The GeForce 8800 GT 256MB comes with clock speeds of 600 MHz on the GPU, and 700 MHz on the 256 MB of GDDR3 memory. It features 112 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon R9 M275X, which comes with GPU clock speed of 900 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce 8800 GT 256MB 105 Watts
Difference: 55 Watts (110%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M275X will be 61% faster than the GeForce 8800 GT 256MB in general, due to its greater data rate. (explain)

Radeon R9 M275X 72000 MB/sec
GeForce 8800 GT 256MB 44800 MB/sec
Difference: 27200 (61%)

Texel Rate

The Radeon R9 M275X will be a bit (more or less 7%) more effective at AF than the GeForce 8800 GT 256MB. (explain)

Radeon R9 M275X 36000 Mtexels/sec
GeForce 8800 GT 256MB 33600 Mtexels/sec
Difference: 2400 (7%)

Pixel Rate

The Radeon R9 M275X will be a lot (approximately 50%) more effective at AA than the GeForce 8800 GT 256MB, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon R9 M275X 14400 Mpixels/sec
GeForce 8800 GT 256MB 9600 Mpixels/sec
Difference: 4800 (50%)

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 GT 256MB

Amazon.com

Check prices at:

Radeon R9 M275X

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 GT 256MB Radeon R9 M275X
Manufacturer nVidia AMD
Year Dec 2007 May 1 2014
Code Name G92 Venus XTX
Memory 256 MB 2048 MB
Core Speed 600 MHz 900 MHz
Memory Speed 1400 MHz 4500 MHz
Power (Max TDP) 105 watts 50 watts
Bandwidth 44800 MB/sec 72000 MB/sec
Texel Rate 33600 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 14400 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 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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 256MB

Amazon.com

Check prices at:

Radeon R9 M275X

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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