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Geforce GTX 680 vs Radeon R9 270

Intro

The Geforce GTX 680 features clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Compare all that to the Radeon R9 270, which has a clock frequency of 900 MHz and a GDDR5 memory frequency of 1400 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

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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 270 5943 points
Difference: 1707 (29%)

Ethereum Mining Hash Rate

Geforce GTX 680 16 Mh/s
Radeon R9 270 15 Mh/s
Difference: 1 (7%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
Geforce GTX 680 195 Watts
Difference: 45 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 is 7% quicker than the Radeon R9 270 in general, due to its greater data rate. (explain)

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

Texel Rate

The Geforce GTX 680 should be much (approximately 79%) more effective at texture filtering than the Radeon R9 270. (explain)

Geforce GTX 680 128768 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 56768 (79%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 680 is superior to the Radeon R9 270, but only just. (explain)

Geforce GTX 680 32192 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 3392 (12%)

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 270

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 270
Manufacturer nVidia AMD
Year March 2012 November 2013
Code Name GK104 Curacao Pro
Memory 2048 MB 2048 MB
Core Speed 1006 MHz 900 MHz
Memory Speed 6008 MHz 5600 MHz
Power (Max TDP) 195 watts 150 watts
Bandwidth 192256 MB/sec 179200 MB/sec
Texel Rate 128768 Mtexels/sec 72000 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 28800 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 moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 applied in one second. This figure 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Geforce GTX 680

Amazon.com

Check prices at:

Radeon R9 270

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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