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GeForce GTX Titan Black vs Radeon HD 4850 X2 1GB

Intro

The GeForce GTX Titan Black features a clock speed of 889 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It is made up of 2880 SPUs, 240 TAUs, and 48 Raster Operation Units.

Compare those specs to the Radeon HD 4850 X2 1GB, which features a clock frequency of 625 MHz and a GDDR3 memory speed of 993 MHz. It also uses a 256-bit bus, and uses a 55 nm design. It is comprised of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX Titan Black will be 164% quicker than the Radeon HD 4850 X2 1GB in general, due to its greater bandwidth. (explain)

GeForce GTX Titan Black 336000 MB/sec
Radeon HD 4850 X2 1GB 127104 MB/sec
Difference: 208896 (164%)

Texel Rate

The GeForce GTX Titan Black should be a lot (approximately 327%) better at anisotropic filtering than the Radeon HD 4850 X2 1GB. (explain)

GeForce GTX Titan Black 213360 Mtexels/sec
Radeon HD 4850 X2 1GB 50000 Mtexels/sec
Difference: 163360 (327%)

Pixel Rate

The GeForce GTX Titan Black should be much (more or less 113%) better at FSAA than the Radeon HD 4850 X2 1GB, and will be capable of handling higher screen resolutions better. (explain)

GeForce GTX Titan Black 42672 Mpixels/sec
Radeon HD 4850 X2 1GB 20000 Mpixels/sec
Difference: 22672 (113%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon HD 4850 X2 1GB

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 Titan Black Radeon HD 4850 X2 1GB
Manufacturer nVidia AMD
Year February 2014 Nov 7, 2008
Code Name GK110-430 R700
Memory 6144 MB 1024 MB (x2)
Core Speed 889 MHz 625 MHz (x2)
Memory Speed 7000 MHz 1986 MHz (x2)
Power (Max TDP) 250 watts 250 watts
Bandwidth 336000 MB/sec 127104 MB/sec
Texel Rate 213360 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 2880 800(160x5) (x2)
Texture Mapping Units 240 40 (x2)
Render Output Units 48 16 (x2)
Bus Type GDDR5 GDDR3
Bus Width 384-bit 256-bit (x2)
Fab Process 28 nm 55 nm
Transistors 7080 million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.4 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon HD 4850 X2 1GB

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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