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GeForce 8800 Ultra vs Radeon R9 M375X

Intro

The GeForce 8800 Ultra has a GPU clock speed of 612 MHz, and the 768 MB of GDDR3 RAM is set to run at 1080 MHz through a 384-bit bus. It also is made up of 128 SPUs, 64 Texture Address Units, and 24 Raster Operation Units.

Compare all of that to the Radeon R9 M375X, which comes with GPU core speed of 1015 MHz, and 4096 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra is 44% faster than the Radeon R9 M375X in general, because of its greater data rate. (explain)

GeForce 8800 Ultra 103680 MB/sec
Radeon R9 M375X 72000 MB/sec
Difference: 31680 (44%)

Texel Rate

The Radeon R9 M375X should be a small bit (more or less 4%) faster with regards to anisotropic filtering than the GeForce 8800 Ultra. (explain)

Radeon R9 M375X 40600 Mtexels/sec
GeForce 8800 Ultra 39168 Mtexels/sec
Difference: 1432 (4%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M375X is superior to the GeForce 8800 Ultra, not by a very large margin though. (explain)

Radeon R9 M375X 16240 Mpixels/sec
GeForce 8800 Ultra 14688 Mpixels/sec
Difference: 1552 (11%)

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 M375X

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 M375X
Manufacturer nVidia AMD
Year May 2007 2015
Code Name G80 Cape Verde
Memory 768 MB 4096 MB
Core Speed 612 MHz 1015 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 40600 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 16240 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 12
OpenGL Version OpenGL 3.0 OpenGL 4.3

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

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 Ultra

Amazon.com

Check prices at:

Radeon R9 M375X

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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