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GeForce GTX 560 vs Radeon HD 4670 1GB

Intro

The GeForce GTX 560 features a clock frequency of 810 MHz and a GDDR5 memory speed of 1001 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It features 336 SPUs, 56 TAUs, and 32 ROPs.

Compare those specifications to the Radeon HD 4670 1GB, which has clock speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB 70 Watts
GeForce GTX 560 150 Watts
Difference: 80 Watts (114%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 should in theory be a lot superior to the Radeon HD 4670 1GB overall. (explain)

GeForce GTX 560 128128 MB/sec
Radeon HD 4670 1GB 35200 MB/sec
Difference: 92928 (264%)

Texel Rate

The GeForce GTX 560 should be quite a bit (approximately 89%) more effective at texture filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTX 560 45360 Mtexels/sec
Radeon HD 4670 1GB 24000 Mtexels/sec
Difference: 21360 (89%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 is the winner, and very much so. (explain)

GeForce GTX 560 25920 Mpixels/sec
Radeon HD 4670 1GB 6000 Mpixels/sec
Difference: 19920 (332%)

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 560

Amazon.com

Radeon HD 4670 1GB

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

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Model GeForce GTX 560 Radeon HD 4670 1GB
Manufacturer nVidia AMD
Year May 2011 Sep 10, 2008
Code Name GF114 RV730 XT
Memory 1024 MB 1024 MB
Core Speed 810 MHz 750 MHz
Memory Speed 4004 MHz 2200 MHz
Power (Max TDP) 150 watts 70 watts
Bandwidth 128128 MB/sec 35200 MB/sec
Texel Rate 45360 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 25920 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 336 320(64x5)
Texture Mapping Units 56 32
Render Output Units 32 8
Bus Type GDDR5 GDDR4/GDDR3/DDR3/DDR2
Bus Width 256-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 514 million
Bus PCIe 2.0 x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in 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 clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 560

Amazon.com

Radeon HD 4670 1GB

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.

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