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GeForce GTX 560 Ti vs Radeon HD 5770

Intro

The GeForce GTX 560 Ti uses a 40 nm design. nVidia has clocked the core frequency at 822 MHz. The GDDR5 RAM works at a speed of 1002 MHz on this model. It features 384 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon HD 5770, which features a clock speed of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770 108 Watts
GeForce GTX 560 Ti 170 Watts
Difference: 62 Watts (57%)

Memory Bandwidth

Theoretically, the GeForce GTX 560 Ti should perform much faster than the Radeon HD 5770 in general. (explain)

GeForce GTX 560 Ti 128256 MB/sec
Radeon HD 5770 76800 MB/sec
Difference: 51456 (67%)

Texel Rate

The GeForce GTX 560 Ti is quite a bit (approximately 55%) more effective at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 560 Ti 52608 Mtexels/sec
Radeon HD 5770 34000 Mtexels/sec
Difference: 18608 (55%)

Pixel Rate

The GeForce GTX 560 Ti will be much (about 93%) more effective at full screen anti-aliasing than the Radeon HD 5770, and able to handle higher resolutions better. (explain)

GeForce GTX 560 Ti 26304 Mpixels/sec
Radeon HD 5770 13600 Mpixels/sec
Difference: 12704 (93%)

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

GeForce GTX 560 Ti

Amazon.com

Radeon HD 5770

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

Model GeForce GTX 560 Ti Radeon HD 5770
Manufacturer nVidia AMD
Year January 2011 October 13, 2009
Code Name GF114 Juniper 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 384 800(160x5)
Texture Mapping Units 64 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2
Power (Max TDP) 170 watts 108 watts
Shader Model 5.0 5.0
Bandwidth 128256 MB/sec 76800 MB/sec
Texel Rate 52608 Mtexels/sec 34000 Mtexels/sec
Pixel Rate 26304 Mpixels/sec 13600 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface in one 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 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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

Comments

3 Responses to “GeForce GTX 560 Ti vs Radeon HD 5770”
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[...] Third argument is upgradability. Go google “iMac”. Look at it. It’s a giant white square pancake with a keyboard and a mouse with one button connected to it. It’s like a laptop: not very powerful and annoying to upgrade. Notice I said “annoying” and not impossible. Upgrading RAM is just finding compatible RAM and slotting it in which I think means the Apple store or Apple suppliers only. Not much room for fans there either. I went to the electronics store here the other day and touched the back of the screen of an iMac that had been on all day… it literally burnt my fingers. You could look into the Mac Pro, the tower Mac but they range in price from $2.5k- $5k (AU$3k-$6k). Here I’d like to point out that for AU$3400 (comparing to the AU$6k Mac Pro), you can get the NRG Avalanche that has half the cores (6 cores @ 3.9Ghz that have been overclocked to 4.5Ghz), twice as much hard drive space (plus a 120GB SSD), 10GB more RAM, and a slightly more powerful graphics card. [...]
[...] and this build are between the CPU and graphics card. The NVIDIA GeForce GTX 560 Ti in our build offers significantly better performance, so if your needs are GPU-intensive you’re in much better shape with the Hack Pro. When it [...]

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