Home GPU Comparison AMD Radeon R9 380X vs AMD Radeon HD 7770 GHz Edition

AMD Radeon R9 380X vs AMD Radeon HD 7770 GHz Edition

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 1024MB VRAM Radeon HD 7770 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages
Released 3 years and 9 months late
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (182.4GB/s vs 72.00GB/s)
1408 additional rendering cores
AMD Radeon HD 7770 GHz Edition 's Advantages
Lower TDP (80W vs 190W)

Score

Benchmark

FP32 (float)
Radeon R9 380X +210%
3.973 TFLOPS
Radeon HD 7770 GHz Edition
1.28 TFLOPS
VS

Graphics Card

Nov 2015
Release Date
Feb 2012
Pirate Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1425 MHz
Memory Clock
1125 MHz

Memory

4GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
182.4GB/s
Bandwidth
72.00GB/s

Render Config

32
Compute Units
10
-
-
-
2048
Shading Units
640
128
TMUs
40
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

31.04 GPixel/s
Pixel Rate
16.00 GPixel/s
124.2 GTexel/s
Texture Rate
40.00 GTexel/s
3.973 TFLOPS
FP16 (half)
-
3.973 TFLOPS
FP32 (float)
1280 GFLOPS
248.3 GFLOPS
FP64 (double)
80.00 GFLOPS

Board Design

190W
TDP
80W
450 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

Antigua
GPU Name
Cape Verde
Antigua XT (215-0877016)
GPU Variant
Cape Verde XT
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
1.5 billion
366 mm²
Die Size
123 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
6.3
Shader Model
5.1

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