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GeForce GTX Titan Black vs Radeon HD 7990

Intro

The GeForce GTX Titan Black has core speeds of 889 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 RAM. It features 2880 SPUs as well as 240 Texture Address Units and 48 Rasterization Operator Units.

Compare those specs to the Radeon HD 7990, which features core clock speeds of 950 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7990 15520 points
GeForce GTX Titan Black 11666 points
Difference: 3854 (33%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX Titan Black 250 Watts
Radeon HD 7990 375 Watts
Difference: 125 Watts (50%)

Memory Bandwidth

Theoretically, the Radeon HD 7990 should be a lot faster than the GeForce GTX Titan Black overall. (explain)

Radeon HD 7990 576000 MB/sec
GeForce GTX Titan Black 336000 MB/sec
Difference: 240000 (71%)

Texel Rate

The Radeon HD 7990 is a little bit (approximately 14%) better at AF than the GeForce GTX Titan Black. (explain)

Radeon HD 7990 243200 Mtexels/sec
GeForce GTX Titan Black 213360 Mtexels/sec
Difference: 29840 (14%)

Pixel Rate

The Radeon HD 7990 is a lot (more or less 42%) more effective at full screen anti-aliasing than the GeForce GTX Titan Black, and able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7990 60800 Mpixels/sec
GeForce GTX Titan Black 42672 Mpixels/sec
Difference: 18128 (42%)

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 7990

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 7990
Manufacturer nVidia AMD
Year February 2014 April 2013
Code Name GK110-430 Malta
Memory 6144 MB 3072 MB (x2)
Core Speed 889 MHz 950 MHz (x2)
Memory Speed 7000 MHz 6000 MHz (x2)
Power (Max TDP) 250 watts 375 watts
Bandwidth 336000 MB/sec 576000 MB/sec
Texel Rate 213360 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 42672 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 2880 2048 (x2)
Texture Mapping Units 240 128 (x2)
Render Output Units 48 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 384-bit 384-bit (x2)
Fab Process 28 nm 28 nm
Transistors 7080 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.4 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Display Prices

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GeForce GTX Titan Black

Amazon.com

Check prices at:

Radeon HD 7990

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.

Comments

One Response to “GeForce GTX Titan Black vs Radeon HD 7990”
michael cassidy says:

7990 vs. gtx 690 AMD wins
7990 vs. titan & titan black AMD wins
290x vs. gtx 980 Nvidia wins
290x vs. gtx 780ti Nvidia wins
R9 295x2 destroys all including titan z which is way overpriced :/
but at least Nvidia wont run your
electricity bill through the roof but preformance to price ratio on AMD cards are superior in my opinion. it makes no sense to pay 400$ to 600$ for a 780 ti or 500$ to 700$ for a 980 when you can get a 290x for 300$ to 500$ save a couple hundred dollars but if you have the extra money I definately recommend nvidia
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127774&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

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