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Radeon HD 4650 1GB vs Radeon R9 M290X

Intro

The Radeon HD 4650 1GB uses a 55 nm design. AMD has set the core frequency at 600 MHz. The GDDR3 RAM runs at a speed of 700 MHz on this particular model. It features 320(64x5) SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Compare those specs to the Radeon R9 M290X, which uses a 28 nm design. AMD has clocked the core frequency at 850 MHz. The GDDR5 memory works at a speed of 1200 MHz on this model. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 1GB 55 Watts
Radeon R9 M290X 100 Watts
Difference: 45 Watts (82%)

Memory Bandwidth

In theory, the Radeon R9 M290X will be 586% faster than the Radeon HD 4650 1GB in general, because of its greater data rate. (explain)

Radeon R9 M290X 153600 MB/sec
Radeon HD 4650 1GB 22400 MB/sec
Difference: 131200 (586%)

Texel Rate

The Radeon R9 M290X should be much (approximately 254%) better at texture filtering than the Radeon HD 4650 1GB. (explain)

Radeon R9 M290X 68000 Mtexels/sec
Radeon HD 4650 1GB 19200 Mtexels/sec
Difference: 48800 (254%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M290X is superior to the Radeon HD 4650 1GB, by a large margin. (explain)

Radeon R9 M290X 27200 Mpixels/sec
Radeon HD 4650 1GB 4800 Mpixels/sec
Difference: 22400 (467%)

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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Radeon HD 4650 1GB

Amazon.com

Check prices at:

Radeon R9 M290X

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 Radeon HD 4650 1GB Radeon R9 M290X
Manufacturer AMD AMD
Year Sep 10, 2008 May 1 2014
Code Name RV730 PRO Neptune XT
Memory 1024 MB 4096 MB
Core Speed 600 MHz 850 MHz
Memory Speed 1400 MHz 4800 MHz
Power (Max TDP) 55 watts 100 watts
Bandwidth 22400 MB/sec 153600 MB/sec
Texel Rate 19200 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 4800 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 320(64x5) 1280
Texture Mapping Units 32 80
Render Output Units 8 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 514 million (Unknown) million
Bus PCIe 2.0 x16, AGP 8x PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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 get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 4650 1GB

Amazon.com

Check prices at:

Radeon R9 M290X

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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