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Geforce GTX 670 vs Radeon R9 270X

Intro

The Geforce GTX 670 makes use of a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 RAM is set to run at a frequency of 1500 MHz on this specific card. It features 1344 SPUs as well as 112 Texture Address Units and 32 ROPs.

Compare those specs to the Radeon R9 270X, which features 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 Texture Address Units 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 670 7351 points
Radeon R9 270X 6590 points
Difference: 761 (12%)

Ethereum Mining Hash Rate

Radeon R9 270X 18 Mh/s
Geforce GTX 670 13 Mh/s
Difference: 5 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
Radeon R9 270X 180 Watts
Difference: 10 Watts (6%)

Memory Bandwidth

The Geforce GTX 670, in theory, should perform a bit faster than the Radeon R9 270X in general. (explain)

Geforce GTX 670 192000 MB/sec
Radeon R9 270X 179200 MB/sec
Difference: 12800 (7%)

Texel Rate

The Geforce GTX 670 should be quite a bit (about 28%) better at texture filtering than the Radeon R9 270X. (explain)

Geforce GTX 670 102480 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 22480 (28%)

Pixel Rate

The Radeon R9 270X should be a bit (about 9%) more effective at anti-aliasing than the Geforce GTX 670, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 270X 32000 Mpixels/sec
Geforce GTX 670 29280 Mpixels/sec
Difference: 2720 (9%)

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 670

Amazon.com

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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 670 Radeon R9 270X
Manufacturer nVidia AMD
Year May 2012 October 2013
Code Name GK104 Curacao XT
Memory 2048 MB 2048 MB
Core Speed 915 MHz 1000 MHz
Memory Speed 6000 MHz 5600 MHz
Power (Max TDP) 170 watts 180 watts
Bandwidth 192000 MB/sec 179200 MB/sec
Texel Rate 102480 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 1344 1280
Texture Mapping Units 112 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 (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Geforce GTX 670

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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