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GeForce GTX 295 vs Radeon R9 270X

Intro

The GeForce GTX 295 uses a 55 nm design. nVidia has set the core speed at 576 MHz. The GDDR3 RAM works at a speed of 999 MHz on this specific model. It features 240 SPUs along with 80 TAUs and 28 Rasterization Operator Units.

Compare those specifications to the Radeon R9 270X, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM runs at a speed of 1400 MHz on this specific card. 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 270X 180 Watts
GeForce GTX 295 289 Watts
Difference: 109 Watts (61%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 295 should in theory be a lot superior to the Radeon R9 270X overall. (explain)

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

Texel Rate

The GeForce GTX 295 will be a small bit (more or less 15%) better at AF than the Radeon R9 270X. (explain)

GeForce GTX 295 92160 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 12160 (15%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 295 is the winner, though only just barely. (explain)

GeForce GTX 295 32256 Mpixels/sec
Radeon R9 270X 32000 Mpixels/sec
Difference: 256 (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.

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 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 295 Radeon R9 270X
Manufacturer nVidia AMD
Year January 8, 2009 October 2013
Code Name G200b Curacao XT
Memory 896 MB (x2) 2048 MB
Core Speed 576 MHz (x2) 1000 MHz
Memory Speed 1998 MHz (x2) 5600 MHz
Power (Max TDP) 289 watts 180 watts
Bandwidth 223776 MB/sec 179200 MB/sec
Texel Rate 92160 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 32000 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: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 295

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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