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GeForce GTX 295 vs Geforce GTX 670

Intro

The GeForce GTX 295 comes with a clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also makes use of a 448-bit memory bus, and makes use of a 55 nm design. It is comprised of 240 SPUs, 80 TAUs, and 28 ROPs.

Compare those specifications to the Geforce GTX 670, which uses a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this model. It features 1344 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
GeForce GTX 295 289 Watts
Difference: 119 Watts (70%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 295 should in theory be a small bit superior to the Geforce GTX 670 overall. (explain)

GeForce GTX 295 223776 MB/sec
Geforce GTX 670 192000 MB/sec
Difference: 31776 (17%)

Texel Rate

The Geforce GTX 670 should be just a bit (about 11%) faster with regards to anisotropic filtering than the GeForce GTX 295. (explain)

Geforce GTX 670 102480 Mtexels/sec
GeForce GTX 295 92160 Mtexels/sec
Difference: 10320 (11%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 295 is the winner, but it probably won't make a huge difference. (explain)

GeForce GTX 295 32256 Mpixels/sec
Geforce GTX 670 29280 Mpixels/sec
Difference: 2976 (10%)

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:

Geforce GTX 670

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 Geforce GTX 670
Manufacturer nVidia nVidia
Year January 8, 2009 May 2012
Code Name G200b GK104
Memory 896 MB (x2) 2048 MB
Core Speed 576 MHz (x2) 915 MHz
Memory Speed 1998 MHz (x2) 6000 MHz
Power (Max TDP) 289 watts 170 watts
Bandwidth 223776 MB/sec 192000 MB/sec
Texel Rate 92160 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 29280 Mpixels/sec
Unified Shaders 240 (x2) 1344
Texture Mapping Units 80 (x2) 112
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 3540 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 295

Amazon.com

Check prices at:

Geforce GTX 670

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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