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GeForce GTX 285 1GB vs Radeon R5 M255

Intro

The GeForce GTX 285 1GB features core speeds of 648 MHz on the GPU, and 1242 MHz on the 1024 MB of GDDR3 RAM. It features 240 SPUs as well as 80 Texture Address Units and 32 ROPs.

Compare all of that to the Radeon R5 M255, which comes with a GPU core clock speed of 940 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 64-bit bus. It also is comprised of 320 Stream Processors, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 1GB will be 894% faster than the Radeon R5 M255 overall, due to its greater data rate. (explain)

GeForce GTX 285 1GB 158976 MB/sec
Radeon R5 M255 16000 MB/sec
Difference: 142976 (894%)

Texel Rate

The GeForce GTX 285 1GB is a lot (more or less 176%) faster with regards to texture filtering than the Radeon R5 M255. (explain)

GeForce GTX 285 1GB 51840 Mtexels/sec
Radeon R5 M255 18800 Mtexels/sec
Difference: 33040 (176%)

Pixel Rate

The GeForce GTX 285 1GB is a lot (more or less 176%) better at FSAA than the Radeon R5 M255, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 285 1GB 20736 Mpixels/sec
Radeon R5 M255 7520 Mpixels/sec
Difference: 13216 (176%)

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 GTX 285 1GB

Amazon.com

Check prices at:

Radeon R5 M255

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 GTX 285 1GB Radeon R5 M255
Manufacturer nVidia AMD
Year January 15, 2009 June 2014
Code Name G200b Jet Pro
Memory 1024 MB 2048 MB
Core Speed 648 MHz 940 MHz
Memory Speed 2484 MHz 2000 MHz
Power (Max TDP) 204 watts (Unknown) watts
Bandwidth 158976 MB/sec 16000 MB/sec
Texel Rate 51840 Mtexels/sec 18800 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 7520 Mpixels/sec
Unified Shaders 240 320
Texture Mapping Units 80 20
Render Output Units 32 8
Bus Type GDDR3 DDR3
Bus Width 512-bit 64-bit
Fab Process 55 nm 28 nm
Transistors 1400 million (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x8
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 1GB

Amazon.com

Check prices at:

Radeon R5 M255

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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