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GeForce GTX 295 vs Radeon R9 270

Intro

The GeForce GTX 295 has a core clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also uses a 448-bit memory bus, and uses a 55 nm design. It is made up of 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Compare all that to the Radeon R9 270, which has core speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
GeForce GTX 295 289 Watts
Difference: 139 Watts (93%)

Memory Bandwidth

Performance-wise, the GeForce GTX 295 should theoretically be a lot better than the Radeon R9 270 in general. (explain)

GeForce GTX 295 223776 MB/sec
Radeon R9 270 179200 MB/sec
Difference: 44576 (25%)

Texel Rate

The GeForce GTX 295 is a lot (about 28%) faster with regards to texture filtering than the Radeon R9 270. (explain)

GeForce GTX 295 92160 Mtexels/sec
Radeon R9 270 72000 Mtexels/sec
Difference: 20160 (28%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 295 is a better choice, though only just barely. (explain)

GeForce GTX 295 32256 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 3456 (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.

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 295

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 295 Radeon R9 270
Manufacturer nVidia AMD
Year January 8, 2009 November 2013
Code Name G200b Curacao Pro
Memory 896 MB (x2) 2048 MB
Core Speed 576 MHz (x2) 900 MHz
Memory Speed 1998 MHz (x2) 5600 MHz
Power (Max TDP) 289 watts 150 watts
Bandwidth 223776 MB/sec 179200 MB/sec
Texel Rate 92160 Mtexels/sec 72000 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 28800 Mpixels/sec
Unified Shaders 240 (x2) 1280
Texture Mapping Units 80 (x2) 80
Render Output Units 28 (x2) 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit (x2) 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 2800 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends 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

Hide Prices

GeForce GTX 295

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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