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Geforce GTX 670 vs Radeon R9 270

Intro

The Geforce GTX 670 has a core clock frequency of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It features 1344 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Compare that to the Radeon R9 270, which features core speeds of 900 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 670 7351 points
Radeon R9 270 5943 points
Difference: 1408 (24%)

Ethereum Mining Hash Rate

Radeon R9 270 15 Mh/s
Geforce GTX 670 13 Mh/s
Difference: 2 (15%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
Geforce GTX 670 170 Watts
Difference: 20 Watts (13%)

Memory Bandwidth

Theoretically, the Geforce GTX 670 should perform a small bit faster than the Radeon R9 270 overall. (explain)

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

Texel Rate

The Geforce GTX 670 will be quite a bit (about 42%) more effective at AF than the Radeon R9 270. (explain)

Geforce GTX 670 102480 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 30480 (42%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 670 is superior to the Radeon R9 270, though only just barely. (explain)

Geforce GTX 670 29280 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 480 (2%)

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 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 670 Radeon R9 270
Manufacturer nVidia AMD
Year May 2012 November 2013
Code Name GK104 Curacao Pro
Memory 2048 MB 2048 MB
Core Speed 915 MHz 900 MHz
Memory Speed 6000 MHz 5600 MHz
Power (Max TDP) 170 watts 150 watts
Bandwidth 192000 MB/sec 179200 MB/sec
Texel Rate 102480 Mtexels/sec 72000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 28800 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: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 processed in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially 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 670

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.

Comments

One Response to “Geforce GTX 670 vs Radeon R9 270”
brexton says:

i was looking to see if i could play star citizen maxed out if you have any knowledge about playing it maxed plz message ack aout it

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