Join Us On Facebook

Compare any two graphics cards:
VS

GeForce GTX 650 vs Radeon R7 250

Intro

The GeForce GTX 650 has core speeds of 1058 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs along with 32 Texture Address Units and 16 ROPs.

Compare all that to the Radeon R7 250, which comes with core clock speeds of 1000 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs as well as 24 TAUs and 8 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
Radeon R7 250 65 Watts
Difference: 1 Watts (2%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 will be 9% faster than the Radeon R7 250 overall, because of its greater data rate. (explain)

GeForce GTX 650 80000 MB/sec
Radeon R7 250 73600 MB/sec
Difference: 6400 (9%)

Texel Rate

The GeForce GTX 650 is a lot (about 41%) faster with regards to AF than the Radeon R7 250. (explain)

GeForce GTX 650 33856 Mtexels/sec
Radeon R7 250 24000 Mtexels/sec
Difference: 9856 (41%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 650 is the winner, and very much so. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 8928 (112%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 650

Amazon.com

Other US-based stores

Radeon R7 250

Amazon.com

Other US-based stores

Specifications

Model GeForce GTX 650 Radeon R7 250
Manufacturer nVidia ATi
Year September 2012 October 2013
Code Name GK107 Oland XT
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 1024 MB
Core Speed 1058 MHz 1000 MHz
Shader Speed 1058 MHz (N/A) MHz
Memory Speed 1250 MHz (5000 MHz effective) 1150 MHz (4600 MHz effective)
Unified Shaders 384 384
Texture Mapping Units 32 24
Render Output Units 16 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 11.1 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3
Power (Max TDP) 64 watts 65 watts
Shader Model 5.0 5.0
Bandwidth 80000 MB/sec 73600 MB/sec
Texel Rate 33856 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 8000 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Comments

Be the first to leave a comment!

Your email address will not be published.


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Spam Protection by WP-SpamFree