Home Comparison Radeon HD 4870 Mac Edition vs Radeon HD 3830

Radeon HD 4870 Mac Edition vs Radeon HD 3830

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 256MB VRAM Radeon HD 3830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Radeon HD 4870 Mac Edition 's Advantages
Released 9 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (108.8GB/s vs 26.50GB/s)
480 additional rendering cores
Radeon HD 3830 's Advantages
Lower TDP (75W vs 150W)

Score

Benchmark

FP32 (float)
Radeon HD 4870 Mac Edition +180%
1200
Radeon HD 3830
428
VS

Graphics Card

Jan 2009
Release Date
Apr 2008
Radeon R700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

850 MHz
Memory Clock
828 MHz

Memory

512MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
108.8GB/s
Bandwidth
26.50GB/s

Render Config

10
Compute Units
4
800
Shading Units
320
40
TMUs
16
16
ROPs
16
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
128 KB

Theoretical Performance

12.00 GPixel/s
Pixel Rate
10.69 GPixel/s
30.00 GTexel/s
Texture Rate
10.69 GTexel/s
1200 GFLOPS
FP32 (float)
427.5 GFLOPS
240.0 GFLOPS
FP64 (double)
85.50 GFLOPS

Graphics Processor

RV770
GPU Name
RV670
RV770 XT Mac (215-0669080)
GPU Variant
RV670 PRO (215-0708003)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.956 billion
Transistors
0.666 billion
256 mm²
Die Size
192 mm²

Board Design

150W
TDP
75W
450 W
Suggested PSU
250 W
1x DVI 1x mini-DisplayPort 1.0
Outputs
No outputs
2x 6-pin
Power Connectors
1x 6-pin

Graphics Features

10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3 (full) 4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
4.1
Shader Model
4.1

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