amd
Brand3GB GDDR5
Memory2048
Cores288 GB/s
BandwidthAMD Radeon HD 7990
amd
Brand8GB GDDR5
Memory2560
Cores384 GB/s
BandwidthAMD Radeon R9 390
AMD Radeon HD 7990
Radeon HD 7990
$999 • Apr 2013
Radeon R9 390
$329 • Jun 2015
AMD Radeon R9 390
Specs Comparison
| Specification | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Memory Size | 3 GB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| TDP | 375 W | 275 W |
| Core Clock | N/A | N/A |
| Boost Clock | 1000 MHz | N/A |
| Memory Bandwidth | 288 GB/s | 384 GB/s |
| Process Size | 28nm | 28nm |
| Architecture | GCN 1.0 | GCN 2.0 |
| Shading Units | 2048 | 2560 |
| RT Cores | N/A | N/A |
| TMUs | 128 | 160 |
| ROPs | 32 | 64 |
| Memory Bus | 384-bit | 512-bit |
| Memory Clock | 1500 MHz | 1500 MHz |
| Pixel Rate | 32 GPixel/s | 64 GPixel/s |
| Texture Rate | 288 GTexel/s | 384 GTexel/s |
| FP32 Performance | 4.096 GFLOPS | 5.12 GFLOPS |
| L2 Cache | 0.75 MB | 1.00 MB |
| Die Size | 365 mm² | 438 mm² |
| Transistors | 4313 Million | 6200 Million |
| Required PSU | 750 W | 600 W |
| Power Connectors | 2x 8-pin | 1x 6-pin + 1x 8-pin |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX | 11.1 | 12 |
| 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 HD 7990
AMD Radeon R9 390
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon HD 7990
AMD Radeon R9 390
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
AMD Radeon HD 7990
AMD Radeon R9 390
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon HD 7990
AMD Radeon R9 390
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 390 Wins!
Based on 4 synthetic benchmarks
AMD Radeon HD 7990
AMD • 3GB GDDR5
AMD Radeon R9 390
AMD • 8GB GDDR5
Most Compared GPUs
Comments & Discussion
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