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GeForce GTX 465 vs Radeon HD 7870

Intro

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

Compare all of that to the Radeon HD 7870, which features GPU core speed of 1000 MHz, and 2048 MB of GDDR5 RAM set to run at 1200 MHz through a 256-bit bus. It also is made up of 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

Theoretically speaking, the Radeon HD 7870 should be 50% quicker than the GeForce GTX 465 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The Radeon HD 7870 should be a lot (approximately 200%) more effective 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 is a lot (more or less 65%) faster with regards to FSAA than the GeForce GTX 465, and also able to handle higher resolutions while still performing well. (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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, 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 most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 ability to get to 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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