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Geforce GTX 760 vs Radeon HD 4870 X2

Intro

The Geforce GTX 760 makes use of a 28 nm design. nVidia has clocked the core frequency at 980 MHz. The GDDR5 memory works at a speed of 1502 MHz on this model. It features 1152 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon HD 4870 X2, which comes with a core clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760 170 Watts
Radeon HD 4870 X2 350 Watts
Difference: 180 Watts (106%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4870 X2 should be 20% faster than the Geforce GTX 760 overall, because of its higher bandwidth. (explain)

Radeon HD 4870 X2 230400 MB/sec
Geforce GTX 760 192256 MB/sec
Difference: 38144 (20%)

Texel Rate

The Geforce GTX 760 should be much (more or less 57%) more effective at anisotropic filtering than the Radeon HD 4870 X2. (explain)

Geforce GTX 760 94080 Mtexels/sec
Radeon HD 4870 X2 60000 Mtexels/sec
Difference: 34080 (57%)

Pixel Rate

The Geforce GTX 760 will be quite a bit (approximately 31%) faster with regards to full screen anti-aliasing than the Radeon HD 4870 X2, and also capable of handling higher resolutions more effectively. (explain)

Geforce GTX 760 31360 Mpixels/sec
Radeon HD 4870 X2 24000 Mpixels/sec
Difference: 7360 (31%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Geforce GTX 760

Amazon.com

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Radeon HD 4870 X2

Amazon.com

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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 760 Radeon HD 4870 X2
Manufacturer nVidia AMD
Year June 2013 Aug 12, 2008
Code Name GK104 R700
Memory 2048 MB 1024 MB (x2)
Core Speed 980 MHz 750 MHz (x2)
Memory Speed 6008 MHz 3600 MHz (x2)
Power (Max TDP) 170 watts 350 watts
Bandwidth 192256 MB/sec 230400 MB/sec
Texel Rate 94080 Mtexels/sec 60000 Mtexels/sec
Pixel Rate 31360 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 1152 800(160x5) (x2)
Texture Mapping Units 96 40 (x2)
Render Output Units 32 16 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit (x2)
Fab Process 28 nm 55 nm
Transistors 3540 million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.3 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Geforce GTX 760

Amazon.com

Check prices at:

Radeon HD 4870 X2

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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