GeForce 8800 GT 256MB vs Radeon R9 M375

Intro

Compare all of that to the Radeon R9 M375, which features core clock speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 RAM. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 8800 GT 256MB should be 27% faster than the Radeon R9 M375 overall, due to its higher bandwidth. (explain)

GeForce 8800 GT 256MB		44800 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 9600 (27%)

Texel Rate

The Radeon R9 M375 should be quite a bit (about 21%) more effective at AF than the GeForce 8800 GT 256MB. (explain)

Radeon R9 M375		40600 Mtexels/sec
GeForce 8800 GT 256MB		33600 Mtexels/sec
	Difference: 7000 (21%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M375 is superior to the GeForce 8800 GT 256MB, by far. (explain)

Radeon R9 M375		16240 Mpixels/sec
GeForce 8800 GT 256MB		9600 Mpixels/sec
	Difference: 6640 (69%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.