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GeForce 9800 GTX+ vs Radeon R7 250

Intro

The GeForce 9800 GTX+ uses a 55 nm design. nVidia has clocked the core speed at 738 MHz. The GDDR3 memory runs at a frequency of 1100 MHz on this model. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon R7 250, which has clock speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 24 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250 65 Watts
GeForce 9800 GTX+ 145 Watts
Difference: 80 Watts (123%)

Memory Bandwidth

In theory, the Radeon R7 250 should be 5% faster than the GeForce 9800 GTX+ in general, because of its greater data rate. (explain)

Radeon R7 250 73600 MB/sec
GeForce 9800 GTX+ 70400 MB/sec
Difference: 3200 (5%)

Texel Rate

The GeForce 9800 GTX+ should be quite a bit (approximately 97%) faster with regards to texture filtering than the Radeon R7 250. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
Radeon R7 250 24000 Mtexels/sec
Difference: 23232 (97%)

Pixel Rate

The GeForce 9800 GTX+ will be quite a bit (more or less 48%) more effective at AA than the Radeon R7 250, and will be able to handle higher resolutions while still performing well. (explain)

GeForce 9800 GTX+ 11808 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 3808 (48%)

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 9800 GTX+

Amazon.com

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Radeon R7 250

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 9800 GTX+ Radeon R7 250
Manufacturer nVidia AMD
Year July 2008 October 2013
Code Name G92b Oland XT
Memory 512 MB 1024 MB
Core Speed 738 MHz 1000 MHz
Memory Speed 2200 MHz 4600 MHz
Power (Max TDP) 145 watts 65 watts
Bandwidth 70400 MB/sec 73600 MB/sec
Texel Rate 47232 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 128 384
Texture Mapping Units 64 24
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 754 million 1040 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 amount of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 9800 GTX+

Amazon.com

Check prices at:

Radeon R7 250

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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