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GeForce 8800 Ultra vs Radeon R7 250X 2GB

Intro

The GeForce 8800 Ultra makes use of a 90 nm design. nVidia has set the core frequency at 612 MHz. The GDDR3 memory is set to run at a frequency of 1080 MHz on this specific card. It features 128 SPUs as well as 64 Texture Address Units and 24 ROPs.

Compare those specs to the Radeon R7 250X 2GB, which uses a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory runs at a frequency of 1125 MHz on this specific model. It features 640 SPUs along with 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB 95 Watts
GeForce 8800 Ultra 171 Watts
Difference: 76 Watts (80%)

Memory Bandwidth

In theory, the GeForce 8800 Ultra should be 44% quicker than the Radeon R7 250X 2GB overall, because of its greater data rate. (explain)

GeForce 8800 Ultra 103680 MB/sec
Radeon R7 250X 2GB 72000 MB/sec
Difference: 31680 (44%)

Texel Rate

The Radeon R7 250X 2GB is a bit (approximately 2%) faster with regards to AF than the GeForce 8800 Ultra. (explain)

Radeon R7 250X 2GB 40000 Mtexels/sec
GeForce 8800 Ultra 39168 Mtexels/sec
Difference: 832 (2%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 250X 2GB is a better choice, but only just. (explain)

Radeon R7 250X 2GB 16000 Mpixels/sec
GeForce 8800 Ultra 14688 Mpixels/sec
Difference: 1312 (9%)

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 R7 250X 2GB

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 R7 250X 2GB
Manufacturer nVidia AMD
Year May 2007 February 2014
Code Name G80 Cape Verde XT
Memory 768 MB 2048 MB
Core Speed 612 MHz 1000 MHz
Memory Speed 2160 MHz 4500 MHz
Power (Max TDP) 171 watts 95 watts
Bandwidth 103680 MB/sec 72000 MB/sec
Texel Rate 39168 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 14688 Mpixels/sec 16000 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 1500 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 largest amount of data (counted in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8800 Ultra

Amazon.com

Check prices at:

Radeon R7 250X 2GB

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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