Home GPU Comparison ATI Radeon HD 3870 Mac Edition vs AMD Radeon R9 380 OEM

ATI Radeon HD 3870 Mac Edition vs AMD Radeon R9 380 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 4GB VRAM Radeon R9 380 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 190W)
AMD Radeon R9 380 OEM 's Advantages
Released 6 years and 11 months late
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (176.0GB/s vs 72.06GB/s)
1472 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 3870 Mac Edition
0.497 TFLOPS
Radeon R9 380 OEM +561%
3.29 TFLOPS
VS

Graphics Card

Jun 2008
Release Date
May 2015
Radeon R600
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1126 MHz
Memory Clock
1375 MHz

Memory

512MB
Memory Size
4GB
GDDR4
Memory Type
GDDR5
256bit
Memory Bus
256bit
72.06GB/s
Bandwidth
176.0GB/s

Render Config

4
Compute Units
28
-
-
-
320
Shading Units
1792
16
TMUs
112
16
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

12.43 GPixel/s
Pixel Rate
29.38 GPixel/s
12.43 GTexel/s
Texture Rate
102.8 GTexel/s
-
FP16 (half)
3.290 TFLOPS
497.3 GFLOPS
FP32 (float)
3.290 TFLOPS
99.46 GFLOPS
FP64 (double)
205.6 GFLOPS

Board Design

106W
TDP
190W
300 W
Suggested PSU
450 W
2x DVI 1x S-Video
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
2x 6-pin

Graphics Processor

RV670
GPU Name
Antigua
RV670 XT (215-0708005)
GPU Variant
Antigua PRO (215-0877000)
TeraScale
Architecture
GCN 3.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.666 billion
Transistors
5 billion
192 mm²
Die Size
366 mm²

Graphics Features

10.1 (10_1)
DirectX
12 (12_0)
3.3 (full) 4.0 (partial)
OpenGL
4.6
N/A
OpenCL
2.0
N/A
Vulkan
1.2
-
-
-
4.1
Shader Model
6.3

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