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GeForce GTX 560 Ti vs Radeon HD 5870

Intro

The GeForce GTX 560 Ti comes with a core clock speed of 822 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 384 SPUs, 64 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 5870, which makes use of a 40 nm design. AMD has clocked the core frequency at 850 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this specific model. It features 1600(320x5) SPUs along with 80 Texture Address Units and 32 ROPs.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 170 Watts
Radeon HD 5870 188 Watts
Difference: 18 Watts (11%)

Memory Bandwidth

The Radeon HD 5870 should in theory be a bit faster than the GeForce GTX 560 Ti in general. (explain)

Radeon HD 5870 153600 MB/sec
GeForce GTX 560 Ti 128256 MB/sec
Difference: 25344 (20%)

Texel Rate

The Radeon HD 5870 will be much (about 29%) better at AF than the GeForce GTX 560 Ti. (explain)

Radeon HD 5870 68000 Mtexels/sec
GeForce GTX 560 Ti 52608 Mtexels/sec
Difference: 15392 (29%)

Pixel Rate

The Radeon HD 5870 is just a bit (approximately 3%) faster with regards to FSAA than the GeForce GTX 560 Ti, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 5870 27200 Mpixels/sec
GeForce GTX 560 Ti 26304 Mpixels/sec
Difference: 896 (3%)

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

Display Prices

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GeForce GTX 560 Ti

Amazon.com

Radeon HD 5870

Amazon.com

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

Display Specifications

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Model GeForce GTX 560 Ti Radeon HD 5870
Manufacturer nVidia AMD
Year January 2011 September 23, 2009
Code Name GF114 Cypress XT
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe 2.1 x16
Memory 1024 MB 1024 MB
Core Speed 822 MHz 850 MHz
Shader Speed 1645 MHz (N/A) MHz
Memory Speed 1002 MHz (4008 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 384 1600(320x5)
Texture Mapping Units 64 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2
Power (Max TDP) 170 watts 188 watts
Shader Model 5.0 5.0
Bandwidth 128256 MB/sec 153600 MB/sec
Texel Rate 52608 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 26304 Mpixels/sec 27200 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, 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 maximum amount of pixels that the graphics chip could possibly write 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Comments

3 Responses to “GeForce GTX 560 Ti vs Radeon HD 5870”
Danish says:
It seems that HD 5870 has left GTX 560 Ti behind in performance.
Niko says:
I just bought a 5870 for 149 shipped. the 560 Ti is going for 200 right now, not worth the 50 bucks in my opinion if your just going with a single card setup
Alex says:
Which is better between the HD 5870 and GTX 560 IT? but seeing the results is better HD 5870, but I hesitate and price are the same? x (

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