Bring out the table
02 There's little point in HEXUS reiterating what's already known about GeForce GT200, so please head on over to our in-depth architectural look to refresh your memory.
However, it's always worth reeling out the Table Of Doom for a 'new' SKU.
| GPU | NVIDIA GeForce GTX 280 1,024 | NVIDIA GeForce GTX 260 896 'Old' | NVIDIA GeForce GTX 260 896 'New' | ATI Radeon HD 4870 X2 2,048MB | ATI Radeon HD 4870 512MB |
|---|---|---|---|---|---|
| PCIe | PCIe 2.0 | ||||
| GPU clock | 602MHz | 576MHz | 576MHz | 750MHz | 7500MHz |
| Shader clock | 1,296MHz | 1,242MHz | 1,242MHz | 750MHz | 750MHz |
| Memory clock (effective) | 2,214MHz | 1,998MHz | 1,998MHz | 3,600MHz | 3,600MHz |
| Memory interface, size, and implementation | 512-bit, 1,024MB, GDDR3 | 448-bit, 896MB, GDDR3 | 448-bit, 896MB, GDDR3 | 512-bit, 2,048MB, GDDR5 | 256-bit, 2,048MB, GDDR5 |
| Memory bandwidth | 141.7GiB/sec | 111.90GiB/sec | 111.9GB/sec | 230GB/sec | 115GB/sec |
| Manufacturing process | TSMC, 65nm | TSMC, 65nm | TSMC, 65/55nm | TSMC, 55nm | TSMC, 55nm |
| Transistor count | 1,408M | 1,408M | 1,408M | 1,930M | 965M |
| Die size | 576mm² | 576mm² | 576mm² (65nm) | 2x 260mm² (520mm²) | 260mm² |
| DirectX Shader Model | DX10, 4.0 | DX10, 4.0 | DX10, 4.0 | DX10, 4.1 | DX10, 4.1 |
| Vertex, fragment, geometry shading (shared) | 240 FP32 scalar ALUs, MADD dual-issue (unified) | 192 FP32 scalar ALUs, MADD dual-issue (unified) | 216 FP32 scalar ALUs, MADD dual-issue (unified) | 1,600 FP32 scalar ALUs, MADD dual-issue (unified) | 800 FP32 scalar ALUs, MADD dual-issue (unified) |
| Peak GFLOP/s | 933 | 715 | 805 | 2,400 | 1,200 |
| Data sampling and filtering | 80ppc address and 80ppc bilinear (8-bit integer)/40ppc FP16 filtering, max 16xAF |
64ppc address and 64ppc bilinear (8-bit integer)/32ppc FP16 filtering, max 16xAF | 72ppc address and 72ppc bilinear (8-bit integer)/36ppc FP16 filtering, max 16xAF | 80ppc address and 80ppc bilinear INT8/40ppc FP16 filtering, max 16xAF | 40ppc address and 40ppc bilinear INT8/20ppc FP16 filtering, max 16xAF |
| Peak fillrate Gpixels/s | 19.264 | 16.128 | 16.128 | 24 | 12 |
| Peak Gtexel/s (bilinear) | 48.16 | 36.864 | 41.472 | 60 | 30 |
| Peak Gtexel/s (FP16, bilinear) | 24.09 | 18.432 | 20.736 |
30 | 15 |
| ROPs | 32 | 28 | 28 | 32 | 16 |
| Peak TDP (claimed) | 236 | 182 | 182 | 289 | 160 |
| Power connectors (default clock) | 8-pin + 6-pin | 6-pin + 6-pin | 6-pin + 6-pin | 8-pin + 6-pin | 6-pin + 6-pin |
| Multi-GPU | SLI - three-board | SLI - three-board | SLI - three-board | CrossFire - two-board | CrossFire - four-board |
| Retail price (default-clocked model) | £250 | £175 | £199* | £330 | £170 |
* estimated pricing for a stock-clocked card.
We've included the major discrete graphics cards priced at over £150 - three from NVIDIA and two from ATI/AMD.
Place particular attention to the columns listing the vital stats for the GeForce GTX 260 GPUs, both present and new.
Clock speeds remain identical, meaning 576MHz for the core, 1,242MHz for the shaders and 1,998MHz for GDDR3 memory.
