GeForce 8500 GT vs Radeon R9 M375X

Intro

Compare those specs to the Radeon R9 M375X, which features a clock frequency of 1015 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375X will be 463% faster than the GeForce 8500 GT in general, due to its higher data rate. (explain)

Radeon R9 M375X		72000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 59200 (463%)

Texel Rate

The Radeon R9 M375X is quite a bit (more or less 1028%) more effective at texture filtering than the GeForce 8500 GT. (explain)

Radeon R9 M375X		40600 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 37000 (1028%)

Pixel Rate

The Radeon R9 M375X is a lot (more or less 802%) faster with regards to FSAA than the GeForce 8500 GT, and also able to handle higher screen resolutions better. (explain)

Radeon R9 M375X		16240 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 14440 (802%)

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 maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the 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 most pixels that the graphics card could possibly record to its 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 speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.