NVIDIA GeForce 840A vs NVIDIA Playstation 3 GPU 40nm
Graphics Processor
| GPU model | GM108 | RSX-40nm |
|---|---|---|
| Architecture | Maxwell | Curie |
| Foundry | TSMC | Sony |
| Manufacturing process | 28 nm | 40 nm |
| Number of transistors | unknown | 302 million |
| Die size | unknown | 114 mm² |
| GPU variant | — | RSX-CXD5302 |
Mobile graphics
| Release date | Mar 17th, 2014 | — |
|---|---|---|
| Generation | GeForce 800A | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x8 | — |
| Predecessor | GeForce 700A | — |
| Successor | GeForce 900A | — |
Clocks
| Base clock | 1029 MHz | — |
|---|---|---|
| Boost clock | 1124 MHz | — |
| Memory clock | 1001 MHz 2 Gbps effective | 650 MHz 1300 Mbps effective |
| GPU clock | — | 550 MHz |
Memory Configuration
| Memory size | 2 GB | 256 MB |
|---|---|---|
| Memory type | DDR3 | GDDR3 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 16.02 GB/s | 20.80 GB/s |
Render Configuration
| Shading units | 384 | — |
|---|---|---|
| TMUs | 16 | 24 |
| ROPs | 8 | 8 |
| SMM count | 3 | — |
| Cache L1 | 64 KB (per SMM) | — |
| Cache L2 | 1024 KB | — |
| Pixel shaders | — | 24 |
| Vertex shaders | — | 8 |
Performance
| Pixel rate | 8.992 GPixel/s | 4.400 GPixel/s |
|---|---|---|
| Texture rate | 17.98 GTexel/s | 13.20 GTexel/s |
| FP32 (float) performance | 863.2 GFLOPS | — |
| FP64 (double) performance | 26.98 GFLOPS (1:32) | — |
| Vertex rate | — | 1.100 GVertices/s |
Dimensions & Outputs
| Slot width | IGP | IGP |
|---|---|---|
| TDP | 33 W | 35 W |
| Outputs | No outputs | No outputs |
| Length | — | 290 mm 11.4 inches |
| Width | — | 290 mm 11.4 inches |
| Height | — | 65 mm 2.6 inches |
| Weight | — | 3.2 kg (7.1 lbs) |
| Suggested PSU | — | 350 W |
API Support & Features
| DirectX | 12 (11_0) | — |
|---|---|---|
| OpenGL | 4.6 | ES 1.1 |
| OpenCL | 3.0 | — |
| Vulkan | 1.1 | — |
| CUDA | 5.0 | — |
| Shader model | 5.1 | — |
| Pixel shader | — | 3.0 |
| Vertex shader | — | 3.0 |
Other Features
Graphics Card
| Release date | — | Oct 4th, 2012 |
|---|---|---|
| Generation | — | Console GPU |
| Production | — | End-of-life |
| Interface | — | IGP |
| Launch price | — | 399 USD |
