amd
Brand8GB GDDR5
Memory2560
Cores384 GB/s
BandwidthAMD Radeon R9 390
amd
Brand3GB GDDR5
Memory2048
Cores288 GB/s
BandwidthAMD Radeon HD 7990
AMD Radeon R9 390
Radeon R9 390
$329 • Jun 2015
Radeon HD 7990
$999 • Apr 2013
AMD Radeon HD 7990
Specs Comparison
| Specification | AMD Radeon R9 390 | AMD Radeon HD 7990 |
|---|---|---|
| Memory Size | 8 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| TDP | 275 W | 375 W |
| Core Clock | N/A | N/A |
| Boost Clock | N/A | 1000 MHz |
| Memory Bandwidth | 384 GB/s | 288 GB/s |
| Process Size | 28nm | 28nm |
| Architecture | GCN 2.0 | GCN 1.0 |
| Shading Units | 2560 | 2048 |
| RT Cores | N/A | N/A |
| TMUs | 160 | 128 |
| ROPs | 64 | 32 |
| Memory Bus | 512-bit | 384-bit |
| Memory Clock | 1500 MHz | 1500 MHz |
| Pixel Rate | 64 GPixel/s | 32 GPixel/s |
| Texture Rate | 384 GTexel/s | 288 GTexel/s |
| FP32 Performance | 5.12 GFLOPS | 4.096 GFLOPS |
| L2 Cache | 1.00 MB | 0.75 MB |
| Die Size | 438 mm² | 365 mm² |
| Transistors | 6200 Million | 4313 Million |
| Required PSU | 600 W | 750 W |
| Power Connectors | 1x 6-pin + 1x 8-pin | 2x 8-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 390
AMD Radeon HD 7990
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon R9 390
AMD Radeon HD 7990
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
AMD Radeon R9 390
AMD Radeon HD 7990
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon R9 390
AMD Radeon HD 7990
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 HD 7990 Wins!
Based on 4 synthetic benchmarks
AMD Radeon R9 390
AMD • 8GB GDDR5
AMD Radeon HD 7990
AMD • 3GB GDDR5
Most Compared GPUs
Comments & Discussion
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