Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

Radeon R7 250 vs Radeon R9 M275X

Intro

The Radeon R7 250 has a GPU core speed of 1000 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1150 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Compare all that to the Radeon R9 M275X, which uses a 28 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 RAM runs at a frequency of 1125 MHz on this card. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
Radeon R7 250 65 Watts
Difference: 15 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 should be 2% quicker than the Radeon R9 M275X overall, due to its greater bandwidth. (explain)

Radeon R7 250 73600 MB/sec
Radeon R9 M275X 72000 MB/sec
Difference: 1600 (2%)

Texel Rate

The Radeon R9 M275X is much (more or less 50%) more effective at AF than the Radeon R7 250. (explain)

Radeon R9 M275X 36000 Mtexels/sec
Radeon R7 250 24000 Mtexels/sec
Difference: 12000 (50%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M275X is superior to the Radeon R7 250, and very much so. (explain)

Radeon R9 M275X 14400 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 6400 (80%)

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

Display Prices

Hide Prices

Radeon R7 250

Amazon.com

Check prices at:

Radeon R9 M275X

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

Display Specifications

Hide Specifications

Model Radeon R7 250 Radeon R9 M275X
Manufacturer AMD AMD
Year October 2013 May 1 2014
Code Name Oland XT Venus XTX
Memory 1024 MB 2048 MB
Core Speed 1000 MHz 900 MHz
Memory Speed 4600 MHz 4500 MHz
Power (Max TDP) 65 watts 50 watts
Bandwidth 73600 MB/sec 72000 MB/sec
Texel Rate 24000 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 8000 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 384 640
Texture Mapping Units 24 40
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1040 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units of the card by the core 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon R7 250

Amazon.com

Check prices at:

Radeon R9 M275X

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.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti-Spam by WP-SpamShield