NVIDIA GeForce 615 vs NVIDIA GeForce 8800 GT Mac Edition
Graphics Processor
| GPU model | GF108 | G92 |
|---|---|---|
| Architecture | Fermi | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 65 nm |
| Number of transistors | 585 million | 754 million |
| Die size | 116 mm² | 324 mm² |
| GPU variant | — | G92-270-A2 |
Mobile graphics
| Release date | May 15th, 2012 | — |
|---|---|---|
| Generation | GeForce 600A | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Successor | GeForce 700A | — |
Clocks
| GPU clock | 660 MHz | 600 MHz |
|---|---|---|
| Shader clock | 1320 MHz | 1500 MHz |
| Memory clock | 900 MHz 1800 Mbps effective | 900 MHz 1800 Mbps effective |
Memory Configuration
| Memory size | 1024 MB | 512 MB |
|---|---|---|
| Memory type | DDR3 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 28.80 GB/s | 57.60 GB/s |
Render Configuration
| Shading units | 48 | 112 |
|---|---|---|
| TMUs | 8 | 56 |
| ROPs | 4 | 16 |
| SM count | 1 | 14 |
| Cache L1 | 64 KB (per SM) | — |
| Cache L2 | 256 KB | 64 KB |
Performance
| Pixel rate | 1.320 GPixel/s | 9.600 GPixel/s |
|---|---|---|
| Texture rate | 5.280 GTexel/s | 33.60 GTexel/s |
| FP32 (float) performance | 126.7 GFLOPS | 336.0 GFLOPS |
| FP64 (double) performance | 10.56 GFLOPS (1:12) | — |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 49 W | 125 W |
| Outputs | No outputs | 2x DVI |
| Length | — | 229 mm 9 inches |
| Suggested PSU | — | 300 W |
| Power connectors | — | 1x 6-pin |
API Support & Features
| DirectX | 12 (11_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| CUDA | 2.1 | 1.1 |
| Shader model | 5.1 | 4.0 |
Other Features
Graphics Card
| Release date | — | Feb 1st, 2008 |
|---|---|---|
| Generation | — | GeForce 8 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 403 in our database |
| Predecessor | — | GeForce 7 PCIe |
| Successor | — | GeForce 9 |
