Replacement for 661-5944: Drop-In Alternatives We Stock
Looking for a replacement for the 661-5944 (661-5944 - Apple Radeon HD 6750M 512MB Video Graphics Card for iMac (21.5-inch Mid 2011))? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the 661-5944
| SKU | 661-5944 |
|---|---|
| Product | 661-5944 - Apple Radeon HD 6750M 512MB Video Graphics Card for iMac (21.5-inch Mid 2011) |
| Current price | $316.08 |
| Stock status | In Stock |
| Detail page | View 661-5944 › |
Drop-in replacements for 661-5944
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
661-6023 - Apple AMD Radeon HD 6750M 256MB GDDR5 128-Bit Video Graphics Card for iMac 21.5-inch Mid 2011
SKU: 661-6023
Price: $610.57
661-5579 - Apple Radeon HD 5670 512MB GDDR3 SDRAM Video Graphics Card for iMac (27-inch Mid 2010)
SKU: 661-5579
Price: $281.68
661-5967 - Apple Radeon HD 6770M 512MB Video Graphics Card for iMac (27-inch Mid 2011)
SKU: 661-5967
Price: $382.59
661-5315 - Apple ATI Radeon HD 4850 512MB PCI Express X16 Video Graphics Card
SKU: 661-5315
Price: $541.96
661-5452 - Apple ATI Radeon X1900 XT 512MB GDDR3 SDRAM 256-Bit PCI-Express x16 Video Graphics Card for Mac Pro MA631
SKU: 661-5452
Price: $1,049.63
661-4335 - Apple Radeon X1900 XT 512MB GDDR3 Dual DVI PCI Express x16 Video Graphics Card
SKU: 661-4335
Price: $1,293.13
661-3927 - Apple ATI Radeon X1900 XT 512MB GDDR3 256-Bit PCI Express x16 Video Graphics Card for Mac Pro
SKU: 661-3927
Price: $1,293.13
661-2745 - Apple 64MB ATI Radeon 9000 Pro AD and DI AGP 4x Video Graphics Card
SKU: 661-2745
Price: $180.00
661-4436 - Apple 256MB GDDR3 ATI Radeon HD 2600XT GPU Video Graphics Card
SKU: 661-4436
Price: $214.55
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.