
amd
Brand8GB GDDR5
Memory2816
Cores384 GB/s
BandwidthAMD Radeon R9 390X

amd
Brand1GB GDDR5
Memory640
Cores72 GB/s
BandwidthAMD Radeon HD 7770 GHz Edition

AMD Radeon R9 390X
Radeon R9 390X
$429 • Jun 2015
Radeon HD 7770 GHz Edition
$159 • Feb 2012
AMD Radeon HD 7770 GHz Edition

Specs Comparison
Specification | AMD Radeon R9 390X | AMD Radeon HD 7770 GHz Edition |
---|---|---|
Memory Size | 8 GB | 1 GB |
Memory Type | GDDR5 | GDDR5 |
TDP | 275 W | 80 W |
Core Clock | N/A | N/A |
Boost Clock | N/A | N/A |
Memory Bandwidth | 384 GB/s | 72 GB/s |
Process Size | 28nm | 28nm |
Architecture | GCN 2.0 | GCN 1.0 |
Shading Units | 2816 | 640 |
RT Cores | N/A | N/A |
TMUs | 176 | 40 |
ROPs | 64 | 16 |
Memory Bus | 512-bit | 128-bit |
Memory Clock | 1500 MHz | 1125 MHz |
Pixel Rate | 67.2 GPixel/s | 16 GPixel/s |
Texture Rate | 384 GTexel/s | 72 GTexel/s |
FP32 Performance | 5.914 GFLOPS | 1 GFLOPS |
L2 Cache | 1.00 MB | 0.25 MB |
Die Size | 438 mm² | 123 mm² |
Transistors | 6200 Million | 1500 Million |
Required PSU | 600 W | 250 W |
Power Connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin |
Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
DirectX | 12 | 11.1 |
Vulkan | N/A | N/A |
OpenGL | 4.6 | 4.6 |
Foundry | TSMC | TSMC |
Comparison in Synthetic Benchmarks


3DMark Time Spy
Synthetic DirectX 12 benchmark that measures GPU performance in gaming workloads
Graphics Score
AMD Radeon R9 390X
AMD Radeon HD 7770 GHz Edition


Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon R9 390X
AMD Radeon HD 7770 GHz Edition


GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
AMD Radeon R9 390X
AMD Radeon HD 7770 GHz Edition


PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon R9 390X
AMD Radeon HD 7770 GHz Edition
Game Benchmarks Comparison
No game benchmarks available for this combination of GPUs yet.
We're working on collecting performance data for this combination of GPUs. Please check back later.
AMD Radeon R9 390X Wins!
Based on 4 synthetic benchmarks

AMD Radeon R9 390X
AMD • 8GB GDDR5

AMD Radeon HD 7770 GHz Edition
AMD • 1GB GDDR5
Most Compared GPUs
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