Sapphire Radeon HD 4870 Toxic 1 GB 

Released December, 2008
  • 780 MHz
  • 1 GB GDDR5

We can clearly see that the second GPU runs cooler under load, whether this is because load distribution or design of the cooler remains unknown.
by techPowerUp! (Aug, 2008)
When the top cooling assembly with the fan is removed, one big heatsink remains which looks very much like a Thermalright product.
by techPowerUp! (Sep, 2008)

Benchmarks Real world tests of the Radeon HD 4870

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Radeon HD 4870

3DMark Vantage (Texture Fill) Industry standard benchmark that tests DirectX performance

Radeon HD 4870

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4870
Radeon HD 7770
Radeon HD 5770

Sky Diver Factor Data courtesy FutureMark

Radeon HD 4870

Cloud Gate Factor Data courtesy FutureMark

Radeon HD 4870

Battleforge 1920x1200 - Maximum quality + 4XAA

Radeon HD 4870
38.7 fps

Hawx 1920 x 1200 - Maximum quality + Low AO + 4xAA

Radeon HD 4870
60 fps

SmallLux GPU 2.0d4 Measures compute performance using OpenCL to do 3D rendering

Radeon HD 4870

Reviews Word on the street for the Radeon HD 4870

AMD's reference design cooler is powerful, big and heavy.

Specifications Full list of technical specs


GPU brand ATI
GPU name RV770
Market Desktop
Clock speed 780 MHz
Is dual GPU No
Reference card ATi Radeon HD 4870 750 MHz 512 MB

raw performance

Shading units 800
Texture mapping units 40
Render output processors 16
Compute units 10
Pixel rate 12.48 GPixel/s
Texture rate 31.2 GTexel/s
Floating-point performance 1,248 GFLOPS


Memory clock speed 1,000 MHz
Effective memory clock speed 4,000 MHz
Memory bus 256 bit
Memory 1,024 MB
Memory type GDDR5
Memory bandwidth 128 GB/s

noise and power

TDP 150W
Idle noise level 40.5 dB
Load noise level 48.8 dB
Idle power consumption 157W
Load power consumption 317W
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Showing 3 comments.
I'm using a 750W PSU and it seems to be handling the GPU just fine. It may be a little excessive but it works.
Trying to get my woman back to D3 &WOW
How many Watts required for a psu to run this?
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