Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

A Question

Compare any two graphics cards:
VS

Radeon HD 5870 vs Radeon HD 6950

Intro

The Radeon HD 5870 has a GPU core speed of 850 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1200 MHz through a 256-bit bus. It also is made up of 1600(320x5) SPUs, 80 Texture Address Units, and 32 ROPs.

Compare those specifications to the Radeon HD 6950, which has GPU core speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also is comprised of 1408 Stream Processors, 88 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5870 188 Watts
Radeon HD 6950 200 Watts
Difference: 12 Watts (6%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 should be a small bit faster than the Radeon HD 5870 overall. (explain)

Radeon HD 6950 160000 MB/sec
Radeon HD 5870 153600 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon HD 6950 will be a bit (about 4%) faster with regards to AF than the Radeon HD 5870. (explain)

Radeon HD 6950 70400 Mtexels/sec
Radeon HD 5870 68000 Mtexels/sec
Difference: 2400 (4%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5870 is the winner, but it probably won't make a huge difference. (explain)

Radeon HD 5870 27200 Mpixels/sec
Radeon HD 6950 25600 Mpixels/sec
Difference: 1600 (6%)

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 HD 5870

Amazon.com

Radeon HD 6950

Amazon.com

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 HD 5870 Radeon HD 6950
Manufacturer AMD AMD
Year September 23, 2009 December 2010
Code Name Cypress XT Cayman Pro
Fab Process 40 nm 40 nm
Bus PCIe 2.1 x16 PCIe x16
Memory 1024 MB 1024 MB
Core Speed 850 MHz 800 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 4800 MHz 5000 MHz
Unified Shaders 1600(320x5) 1408
Texture Mapping Units 80 88
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1
Power (Max TDP) 188 watts 200 watts
Shader Model 5.0 5.0
Bandwidth 153600 MB/sec 160000 MB/sec
Texel Rate 68000 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 25600 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Comments

8 Responses to “Radeon HD 5870 vs Radeon HD 6950”
mauro says:

muy buena la pagina es exactamente lo que estaba buscando...muy pero muy buena, mas aya de que los resultados no sean exactos, la idea esta...y es exelente, felicitaciones!!

Fragen zu Battlefield 3 Grafik. Was glaubt ihr? - Seite 6 says:

[...] habe dann ist der Unterschied nicht wirklich merkbar. Hier sieht du ganz grob den Unterschied Radeon HD 5870 vs Radeon HD 6950 – Performance Comparison Benchmarks @ Hardware Compare Zitieren + [...]

Battlefield 3 specs says:

[...] to be enjoyed? How big difference is there really between HD5870 and HD6950? Please enlight me.. http://www.hwcompare.com/6132/radeon...adeon-hd-6950/ An answer would be appreciated.... Attached Images [...]

Viking2121 says:

No difference at all, Overclock a tad and it faster than the 6950, only thing thats better is more vram.

larsV12 says:

@mauro .. like Viking says - only, i'd add that the 6950 offers OpenGL 4.1 support. What that means, in rel terms, is it might be slightly better optimized for newer, 3D gaming titles that utilise OpenGL. Other than that? They're very evenly matched cards .. so put it like this: flip a coin - heads for the 5870, tails for the 6950 - to pick one ... i guarantee you won't be disappointed with the outcome ;P

George Kohler says:

The 2GB 6950 is the way to go! You can flash the 6970 firmware and unlock the locked shader cores and if you use the ASUS firmware you can even add a 20% overclock to blow the 5870 out of the water. Crisis 3 with everything maxed out hits 136 FPS with the ASUS 6970 firmware and 20% boost and runs at 89 degrees C well below the 95C design limit since it is after all the same exact reference hardware only hobbled by a greedy company to dole out performance. I love finding out these cheesy ploys and exploiting them.

larsV12 says:

@George K ... the 6950 1GB has the same unlock capability ( ..i should know, the rig i'm typing this on has a 6950-1G @ 1536 SPU's ;P ). The 6950-2G's obviously will rule at high res' over the 1GB versions though. I'm getting high 60's, temperature wise (on ref' cooler), with Crysis & idling @ 30-35. Wanna know how to keep these babies running cool - without after-market cooling (... and short of putting the rig in a freezer)?? ... ask me how ;P

LarsV12 says:

Actually, after testing the 5870 vs 6950, on a modest 5.5% bump on the core (to 900), for the 5870, and a 4% bump on the memory clock (to 1250), the 5870 returns, pixel fill: 28.8GP/s, texture fill: 72GT/s and mem' b/w @ 160GB/s. That's slightly better than parity with the 6950. Also consider that the 5870 is known to be able to clock up to core: 1000 & mem:1300 memory: http://www.tweaktown.com/articles/3286/gigabyte_radeon_hd_5870_1gb_super_overclock_video_card_overclocked_higher/index11.html --> Add to the fact 5870's have 1600 shader cores vs just 1408 for 6950's, and all the sudden the 6950, by all rights, looks more like a 'side-grade' rather than an upgrade.

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

*


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>

WordPress Anti-Spam by WP-SpamShield


[X]
[X]