NVIDIA GeForce GTX 650 vs NVIDIA GeForce GTX 970
Graphics Processor
| GPU model | GK106 | GM204 |
|---|---|---|
| Architecture | Kepler | Maxwell 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 2,540 million | 5,200 million |
| Die size | 221 mm² | 398 mm² |
| GPU variant | — | GM204-200-A1 |
Graphics Card
| Release date | Nov 27th, 2013 | Sep 19th, 2014 |
|---|---|---|
| Generation | GeForce 600 | GeForce 900 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 17 in our database | 111 in our database |
| Predecessor | GeForce 500 | GeForce 700 |
| Successor | GeForce 700 | GeForce 10 |
| Launch price | — | 329 USD |
Clocks
| GPU clock | 1058 MHz | — |
|---|---|---|
| Memory clock | 1250 MHz 5 Gbps effective | 1753 MHz 7 Gbps effective |
| Base clock | — | 1050 MHz |
| Boost clock | — | 1178 MHz |
Memory Configuration
| Memory size | 1024 MB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 80.00 GB/s | 224.4 GB/s |
Render Configuration
| Shading units | 384 | 1664 |
|---|---|---|
| TMUs | 32 | 104 |
| ROPs | 16 | 56 |
| SMX count | 2 | — |
| Cache L1 | 16 KB (per SMX) | 48 KB (per SMM) |
| Cache L2 | 256 KB | 2 MB |
| SMM count | — | 13 |
Performance
| Pixel rate | 8.464 GPixel/s | 65.97 GPixel/s |
|---|---|---|
| Texture rate | 33.86 GTexel/s | 122.5 GTexel/s |
| FP32 (float) performance | 812.5 GFLOPS | 3.920 TFLOPS |
| FP64 (double) performance | 33.86 GFLOPS (1:24) | 122.5 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | Single-slot | Dual-slot |
|---|---|---|
| Length | 147 mm 5.8 inches | 267 mm 10.5 inches |
| TDP | 65 W | 148 W |
| Suggested PSU | 250 W | 300 W |
| Outputs | 1x DVI2x DisplayPort | 1x DVI1x HDMI3x DisplayPort |
| Power connectors | 1x 6-pin | 2x 6-pin |
| Width | — | 111 mm 4.4 inches |
| Height | — | 40 mm 1.6 inches |
| Board number | — | PG401 |
API Support & Features
| DirectX | 12 (11_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.1 |
| CUDA | 3.0 | 5.2 |
| Shader model | 5.1 | 6.4 |
