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GeForce 8800 GT 256MB vs Radeon R9 M390X

Intro

The GeForce 8800 GT 256MB has a GPU clock speed of 600 MHz, and the 256 MB of GDDR3 RAM runs at 700 MHz through a 256-bit bus. It also features 112 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Compare all that to the Radeon R9 M390X, which has clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 256MB 105 Watts
Radeon R9 M390X 125 Watts
Difference: 20 Watts (19%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M390X should be 257% faster than the GeForce 8800 GT 256MB in general, because of its greater bandwidth. (explain)

Radeon R9 M390X 160000 MB/sec
GeForce 8800 GT 256MB 44800 MB/sec
Difference: 115200 (257%)

Texel Rate

The Radeon R9 M390X is quite a bit (approximately 175%) better at AF than the GeForce 8800 GT 256MB. (explain)

Radeon R9 M390X 92544 Mtexels/sec
GeForce 8800 GT 256MB 33600 Mtexels/sec
Difference: 58944 (175%)

Pixel Rate

The Radeon R9 M390X will be a lot (about 141%) better at anti-aliasing than the GeForce 8800 GT 256MB, and capable of handling higher resolutions more effectively. (explain)

Radeon R9 M390X 23136 Mpixels/sec
GeForce 8800 GT 256MB 9600 Mpixels/sec
Difference: 13536 (141%)

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 M390X

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 M390X
Manufacturer nVidia AMD
Year Dec 2007 2015
Code Name G92 Tonga
Memory 256 MB 4096 MB
Core Speed 600 MHz 723 MHz
Memory Speed 1400 MHz 5000 MHz
Power (Max TDP) 105 watts 125 watts
Bandwidth 44800 MB/sec 160000 MB/sec
Texel Rate 33600 Mtexels/sec 92544 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 23136 Mpixels/sec
Unified Shaders 112 2048
Texture Mapping Units 56 128
Render Output Units 16 32
Bus Type GDDR3 GDDR5
Bus Width 256-bit 256-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 12
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high 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 of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 8800 GT 256MB

Amazon.com

Check prices at:

Radeon R9 M390X

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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