Product Compare
AMD Radeon HD 7950 Monica BIOS 1 vs AMD Radeon HD 6990M
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2012 | Jul 2011 |
| Generation | Southern Islands | Vancouver |
| Type | Desktop | Mobile |
| Bus Interface | PCIe 3.0 x16 | MXM-B (3.0) |
| Clock Speeds | ||
| Memory Clock | 1250 MHz | 900 MHz |
| Memory | ||
| Memory Size | 3GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 256bit |
| Bandwidth | 240.0GB/s | 115.2GB/s |
| Render Config | ||
| Compute Units | 24 | 14 |
| Shading Units | 1536 | 1120 |
| TMUs | 96 | 56 |
| ROPs | 32 | 32 |
| L1 Cache | 16 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 768 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 29.60 GPixel/s | 22.88 GPixel/s |
| Texture Rate | 88.80 GTexel/s | 40.04 GTexel/s |
| FP32 (float) | 2.842 TFLOPS | 1.602 TFLOPS |
| FP64 (double) | 710.4 GFLOPS | |
| Graphics Processor | ||
| GPU Name | Tahiti | Blackcomb |
| GPU Variant | Tahiti PRO(215-0821056) | Blackcomb XTX(216-0811030) |
| Architecture | GCN 1.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 40 nm |
| Transistors | 4.313 billion | 1.7 billion |
| Die Size | 352 mm² | 212 mm² |
| Board Design | ||
| TDP | 185W | 100W |
| Suggested PSU | 450 W | |
| Outputs | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | No outputs |
| Power Connectors | 1x 6-pin + 1x 8-pin | None |
| Graphics Features | ||
| DirectX | 12 (11_1) | 11.2 (11_0) |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2 | N/A |
| Shader Model | 5.1 | 5.0 |