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Benchmarks Real world tests of the Radeon HD 4870
PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark
3DMark Vantage (Texture Fill) Industry standard benchmark that tests DirectX performance
T-Rex (GFXBench 3.0) Data courtesy CompuBench
Sky Diver Factor Data courtesy FutureMark
Cloud Gate Factor Data courtesy FutureMark
Battleforge 1920x1200 - Maximum quality + 4XAA
Hawx 1920 x 1200 - Maximum quality + Low AO + 4xAA
SmallLux GPU 2.0d4 Measures compute performance using OpenCL to do 3D rendering
Reviews Word on the street for the Radeon HD 4870
Specifications Full list of technical specs
gpu
| GPU brand | ATI |
|---|---|
| GPU name | RV770 |
| Market | Desktop |
| Clock speed | 750 MHz |
| Is dual GPU | No |
| Reference card | None |
raw performance
| Shading units | 800 |
|---|---|
| Texture mapping units | 40 |
| Render output processors | 16 |
| Compute units | 10 |
| Pixel rate | 12 GPixel/s |
| Texture rate | 30 GTexel/s |
| Floating-point performance | 1,200 GFLOPS |
memory
| Memory clock speed | 900 MHz |
|---|---|
| Effective memory clock speed | 3,600 MHz |
| Memory bus | 256 bit |
| Memory | 512 MB |
| Memory type | GDDR5 |
| Memory bandwidth | 115.2 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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Competitors
 | |
 | AMD Radeon HD 7770
|
 | AMD Radeon R7 240
|
 | AMD Radeon R5 M330
|
 | Nvidia GeForce GTX 550 Ti
|
 | ATi Radeon HD 5770
|
 | ATi Radeon HD 5450
|
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