And having looked for hours, having posted the above I find a way that should query those things.
/usr/bin/nvidia-smi -a
Sadly it is mostly N/A with my card (GTS 250)
==============NVSMI LOG==============
Timestamp : Wed Dec 18 02:40:11 2013
Driver Version : 319.37
Attached GPUs : 1
GPU 0000:02:00.0
Product Name : GeForce GTS 250
Display Mode : N/A
Display Active : N/A
Persistence Mode : Disabled
Accounting Mode : N/A
Accounting Mode Buffer Size : N/A
Driver Model
Current : N/A
Pending : N/A
Serial Number : N/A
GPU UUID : GPU-83625be0-08b8-2a8c-44c8-82f560e2d9b7
VBIOS Version : 62.92.7E.00.00
Inforom Version
Image Version : N/A
OEM Object : N/A
ECC Object : N/A
Power Management Object : N/A
GPU Operation Mode
Current : N/A
Pending : N/A
PCI
Bus : 0x02
Device : 0x00
Domain : 0x0000
Device Id : 0x061510DE
Bus Id : 0000:02:00.0
Sub System Id : 0x110319DA
GPU Link Info
PCIe Generation
Max : N/A
Current : N/A
Link Width
Max : N/A
Current : N/A
Fan Speed : 43 %
Performance State : N/A
Clocks Throttle Reasons : N/A
Memory Usage
Total : 511 MB
Used : 235 MB
Free : 276 MB
Compute Mode : Default
Utilization
Gpu : N/A
Memory : N/A
Ecc Mode
Current : N/A
Pending : N/A
ECC Errors
Volatile
Single Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Double Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Aggregate
Single Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Double Bit
Device Memory : N/A
Register File : N/A
L1 Cache : N/A
L2 Cache : N/A
Texture Memory : N/A
Total : N/A
Retired Pages
Single Bit ECC : N/A
Double Bit ECC : N/A
Pending : N/A
Temperature
Gpu : 64 C
Power Readings
Power Management : N/A
Power Draw : N/A
Power Limit : N/A
Default Power Limit : N/A
Enforced Power Limit : N/A
Min Power Limit : N/A
Max Power Limit : N/A
Clocks
Graphics : N/A
SM : N/A
Memory : N/A
Applications Clocks
Graphics : N/A
Memory : N/A
Default Applications Clocks
Graphics : N/A
Memory : N/A
Max Clocks
Graphics : N/A
SM : N/A
Memory : N/A
Compute Processes : N/A
That's with cudaminer running - all I have to go on is the temp and fan speed. Doesn't seem to be working that hard really - it used to get hotter and higher fans than that gaming on it.
Any pointer welcome
