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GeForce GTX 260 Core 216 vs Radeon HD 4870 1GB

Intro

The GeForce GTX 260 Core 216 uses a 65 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 RAM works at a speed of 999 MHz on this specific card. It features 216 SPUs as well as 72 TAUs and 28 Rasterization Operator Units.

Compare all that to the Radeon HD 4870 1GB, which makes use of a 55 nm design. AMD has set the core speed at 750 MHz. The GDDR5 memory is set to run at a frequency of 900 MHz on this particular card. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4870 1GB 150 Watts
GeForce GTX 260 Core 216 202 Watts
Difference: 52 Watts (35%)

Memory Bandwidth

The Radeon HD 4870 1GB should in theory perform a small bit faster than the GeForce GTX 260 Core 216 in general. (explain)

Radeon HD 4870 1GB 115200 MB/sec
GeForce GTX 260 Core 216 111888 MB/sec
Difference: 3312 (3%)

Texel Rate

The GeForce GTX 260 Core 216 is much (approximately 38%) better at anisotropic filtering than the Radeon HD 4870 1GB. (explain)

GeForce GTX 260 Core 216 41472 Mtexels/sec
Radeon HD 4870 1GB 30000 Mtexels/sec
Difference: 11472 (38%)

Pixel Rate

The GeForce GTX 260 Core 216 will be quite a bit (about 34%) faster with regards to full screen anti-aliasing than the Radeon HD 4870 1GB, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 260 Core 216 16128 Mpixels/sec
Radeon HD 4870 1GB 12000 Mpixels/sec
Difference: 4128 (34%)

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 260 Core 216

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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 260 Core 216 Radeon HD 4870 1GB
Manufacturer nVidia AMD
Year September 16, 2008 Jun 25, 2008
Code Name G200 RV770 XT
Memory 896 MB 1024 MB
Core Speed 576 MHz 750 MHz
Memory Speed 1998 MHz 3600 MHz
Power (Max TDP) 202 watts 150 watts
Bandwidth 111888 MB/sec 115200 MB/sec
Texel Rate 41472 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 216 800(160x5)
Texture Mapping Units 72 40
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 65 nm 55 nm
Transistors 1400 million 956 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 260 Core 216

Amazon.com

Check prices at:

Radeon HD 4870 1GB

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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