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GeForce GTX 465 vs Radeon HD 6990

Intro

The GeForce GTX 465 has a GPU core speed of 607 MHz, and the 1024 MB of GDDR5 RAM is set to run at 802 MHz through a 256-bit bus. It also features 352 Stream Processors, 44 TAUs, and 32 Raster Operation Units.

Compare all of that to the Radeon HD 6990, which features clock speeds of 830 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 96 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465 200 Watts
Radeon HD 6990 375 Watts
Difference: 175 Watts (88%)

Memory Bandwidth

The Radeon HD 6990, in theory, should be much faster than the GeForce GTX 465 overall. (explain)

Radeon HD 6990 320000 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 217408 (212%)

Texel Rate

The Radeon HD 6990 will be much (more or less 497%) more effective at texture filtering than the GeForce GTX 465. (explain)

Radeon HD 6990 159360 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 132652 (497%)

Pixel Rate

The Radeon HD 6990 should be a lot (about 173%) more effective at AA than the GeForce GTX 465, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 6990 53120 Mpixels/sec
GeForce GTX 465 19424 Mpixels/sec
Difference: 33696 (173%)

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 465

Amazon.com

Check prices at:

Radeon HD 6990

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 465 Radeon HD 6990
Manufacturer nVidia AMD
Year May 2010 March 2011
Code Name GF100 Antilles
Memory 1024 MB 2048 MB (x2)
Core Speed 607 MHz 830 MHz (x2)
Memory Speed 3208 MHz 5000 MHz (x2)
Power (Max TDP) 200 watts 375 watts
Bandwidth 102592 MB/sec 320000 MB/sec
Texel Rate 26708 Mtexels/sec 159360 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 53120 Mpixels/sec
Unified Shaders 352 1536 (x2)
Texture Mapping Units 44 96 (x2)
Render Output Units 32 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit (x2)
Fab Process 40 nm 40 nm
Transistors 3000 million 2640 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 in one second. This is calculated 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 465

Amazon.com

Check prices at:

Radeon HD 6990

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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