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GeForce GTX Titan Black vs Radeon HD 4850 X2 1GB

Intro

The GeForce GTX Titan Black has clock speeds of 889 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 memory. It features 2880 SPUs along with 240 Texture Address Units and 48 ROPs.

Compare all that to the Radeon HD 4850 X2 1GB, which has a core clock frequency of 625 MHz and a GDDR3 memory speed of 993 MHz. It also features a 256-bit bus, and uses a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce GTX Titan Black should theoretically perform a lot faster than the Radeon HD 4850 X2 1GB overall. (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 is quite a bit (about 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 quite a bit (approximately 113%) better at anti-aliasing than the Radeon HD 4850 X2 1GB, and also should 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: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth - 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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