AMD Radeon HD 6970M Mac Edition vs NVIDIA Quadro K3100M
Graphics Processor
| GPU model | Blackcomb | GK104 |
|---|---|---|
| GPU variant | Blackcomb XT (216-0811000) | N15E-Q1-A2 |
| Architecture | TeraScale 2 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 1,700 million | 3,540 million |
| Die size | 212 mm² | 294 mm² |
Mobile graphics
| Release date | Aug 25th, 2011 | Jul 23rd, 2013 |
|---|---|---|
| Generation | Vancouver (HD 6900M) | Quadro Mobile (Kx100M) |
| Production | End-of-life | End-of-life |
| Interface | MXM-B (3.0) | MXM-B (3.0) |
| Predecessor | Manhattan | — |
| Successor | London | — |
| Reviews | — | 26 in our database |
Clocks
| GPU clock | 680 MHz | 706 MHz |
|---|---|---|
| Memory clock | 900 MHz 3.6 Gbps effective | 800 MHz 3.2 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 115.2 GB/s | 102.4 GB/s |
Render Configuration
| Shading units | 960 | 768 |
|---|---|---|
| TMUs | 48 | 64 |
| ROPs | 32 | 32 |
| Compute units | 12 | — |
| Cache L1 | 8 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 512 KB | 512 KB |
| SMX count | — | 4 |
Performance
| Pixel rate | 21.76 GPixel/s | 11.30 GPixel/s |
|---|---|---|
| Texture rate | 32.64 GTexel/s | 45.18 GTexel/s |
| FP32 (float) performance | 1,306 GFLOPS | 1,084 GFLOPS |
| FP64 (double) performance | — | 45.18 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | MXM Module | MXM Module |
|---|---|---|
| TDP | 75 W | 75 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | — |
| Board number | C296 | — |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | — | 1.1 |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 3.0 |
