Radeon HD 4850 

Released June, 2008
  • 625 MHz
  • 512 MB GDDR3
6.3 Out of 10

When our overclocks are put in perspective to the reference clocks of the AMD HD 4850 (625/993), the margin becomes even bigger: 21% and 26.
by techPowerUp! (Aug, 2008)
The chips are rated at 1.0 ns (= 1000 MHz) which is pretty much what we saw during overclocking.
by techPowerUp! (Jun, 2008)

Benchmarks Real world tests of the Radeon HD 4850

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Radeon HD 4850

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4850

Fire Strike Factor Data courtesy FutureMark

Radeon HD 4850

Sky Diver Factor Data courtesy FutureMark

Radeon HD 4850

Cloud Gate Factor Data courtesy FutureMark

Radeon HD 4850

Battlefield 4

Radeon HD 4850

FarCry 3

Radeon HD 4850

Battlefield 3

Radeon HD 4850

Reviews Word on the street for the Radeon HD 4850

Low PowerMedium PowerHigh PowerCore Clock500 MHz500 MHz625 MHzMemory Clock750 MHz750 MHz900 MHzGPU Voltage1.046 V1.046 V1.082 V The load detection is not dependent on 3D fullscreen, but on actual GPU usage.

Specifications Full list of technical specs


GPU brand ATI
GPU name RV770
Market Desktop
Clock speed 625 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 10 GPixel/s
Texture rate 25 GTexel/s
Floating-point performance 1,000 GFLOPS


Memory clock speed 993 MHz
Effective memory clock speed 1,986 MHz
Memory bus 256 bit
Memory 512 MB
Memory type GDDR3
Memory bandwidth 63.55 GB/s

noise and power

TDP 110W
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