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Geforce GTX 680 vs Radeon R9 270X

Intro

The Geforce GTX 680 features a core clock speed of 1006 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 ROPs.

Compare those specs to the Radeon R9 270X, which comes with core clock speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 680 7650 points
Radeon R9 270X 6590 points
Difference: 1060 (16%)

Ethereum Mining Hash Rate

Radeon R9 270X 18 Mh/s
Geforce GTX 680 16 Mh/s
Difference: 2 (13%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
Geforce GTX 680 195 Watts
Difference: 15 Watts (8%)

Memory Bandwidth

Theoretically, the Geforce GTX 680 should be a bit faster than the Radeon R9 270X in general. (explain)

Geforce GTX 680 192256 MB/sec
Radeon R9 270X 179200 MB/sec
Difference: 13056 (7%)

Texel Rate

The Geforce GTX 680 should be quite a bit (approximately 61%) more effective at anisotropic filtering than the Radeon R9 270X. (explain)

Geforce GTX 680 128768 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 48768 (61%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 680 is a better choice, though not by far. (explain)

Geforce GTX 680 32192 Mpixels/sec
Radeon R9 270X 32000 Mpixels/sec
Difference: 192 (1%)

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 680

Amazon.com

Check prices at:

Radeon R9 270X

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 680 Radeon R9 270X
Manufacturer nVidia AMD
Year March 2012 October 2013
Code Name GK104 Curacao XT
Memory 2048 MB 2048 MB
Core Speed 1006 MHz 1000 MHz
Memory Speed 6008 MHz 5600 MHz
Power (Max TDP) 195 watts 180 watts
Bandwidth 192256 MB/sec 179200 MB/sec
Texel Rate 128768 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 1536 1280
Texture Mapping Units 128 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 2800 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Geforce GTX 680

Amazon.com

Check prices at:

Radeon R9 270X

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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