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GeForce GTX 465 vs Radeon HD 7870

Intro

The GeForce GTX 465 makes use of a 40 nm design. nVidia has set the core speed at 607 MHz. The GDDR5 memory is set to run at a frequency of 802 MHz on this model. It features 352 SPUs as well as 44 Texture Address Units and 32 Rasterization Operator Units.

Compare all that to the Radeon HD 7870, which has a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also features 1280 SPUs, 80 TAUs, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 175 Watts
GeForce GTX 465 200 Watts
Difference: 25 Watts (14%)

Memory Bandwidth

The Radeon HD 7870, in theory, should perform much faster than the GeForce GTX 465 in general. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 51008 (50%)

Texel Rate

The Radeon HD 7870 will be a lot (approximately 200%) better at AF than the GeForce GTX 465. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 53292 (200%)

Pixel Rate

The Radeon HD 7870 will be much (about 65%) better at FSAA than the GeForce GTX 465, and also will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 465 19424 Mpixels/sec
Difference: 12576 (65%)

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 465

Amazon.com

Check prices at:

Radeon HD 7870

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 7870
Manufacturer nVidia AMD
Year May 2010 March 2012
Code Name GF100 Pitcairn XT
Memory 1024 MB 2048 MB
Core Speed 607 MHz 1000 MHz
Memory Speed 3208 MHz 4800 MHz
Power (Max TDP) 200 watts 175 watts
Bandwidth 102592 MB/sec 153600 MB/sec
Texel Rate 26708 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 352 1280
Texture Mapping Units 44 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 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 clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 465

Amazon.com

Check prices at:

Radeon HD 7870

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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