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GeForce GTX 465 vs Radeon HD 4870 512MB

Intro

The GeForce GTX 465 comes with core speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 memory. It features 352 SPUs along with 44 TAUs and 32 ROPs.

Compare all that to the Radeon HD 4870 512MB, which has core speeds of 750 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4870 512MB 150 Watts
GeForce GTX 465 200 Watts
Difference: 50 Watts (33%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4870 512MB should be 12% quicker than the GeForce GTX 465 in general, because of its greater bandwidth. (explain)

Radeon HD 4870 512MB 115200 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 12608 (12%)

Texel Rate

The Radeon HD 4870 512MB should be a little bit (more or less 12%) more effective at AF than the GeForce GTX 465. (explain)

Radeon HD 4870 512MB 30000 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 3292 (12%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 465 is superior to the Radeon HD 4870 512MB, by far. (explain)

GeForce GTX 465 19424 Mpixels/sec
Radeon HD 4870 512MB 12000 Mpixels/sec
Difference: 7424 (62%)

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 4870 512MB

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 4870 512MB
Manufacturer nVidia AMD
Year May 2010 Jun 25, 2008
Code Name GF100 RV770 XT
Memory 1024 MB 512 MB
Core Speed 607 MHz 750 MHz
Memory Speed 3208 MHz 3600 MHz
Power (Max TDP) 200 watts 150 watts
Bandwidth 102592 MB/sec 115200 MB/sec
Texel Rate 26708 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 352 800(160x5)
Texture Mapping Units 44 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 3000 million 956 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total 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 maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 465

Amazon.com

Check prices at:

Radeon HD 4870 512MB

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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