T400 vs GeForce 7900 GTX

Place in the ranking	1178	539
Place by popularity	not in top-100	not in top-100
Power efficiency	0.85	22.20
Architecture	Curie (2003−2013)	Turing (2018−2022)
GPU code name	G71	TU117
Market segment	Desktop	Workstation
Release date	9 March 2006 (20 years ago)	6 May 2021 (4 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	no data	384
Core clock speed	650 MHz	420 MHz
Boost clock speed	no data	1425 MHz
Number of transistors	278 million	4,700 million
Manufacturing process technology	90 nm	12 nm
Power consumption (TDP)	84 Watt	30 Watt
Texture fill rate	15.60	34.20
Floating-point processing power	no data	1.094 TFLOPS
ROPs	16	16
TMUs	24	24
L1 Cache	no data	384 KB
L2 Cache	no data	1024 KB

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Interface	PCIe 1.0 x16	PCIe 3.0 x16
Width	1-slot	1-slot
Supplementary power connectors	1x 6-pin	None

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR3	GDDR6
Maximum RAM amount	512 MB	2 GB
Memory bus width	256 Bit	64 Bit
Memory clock speed	800 MHz	1250 MHz
Memory bandwidth	51.2 GB/s	80 GB/s

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors

2x DVI, 1x S-Video

3x mini-DisplayPort

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	9.0c (9_3)	12 (12_1)
Shader Model	3.0	6.6
OpenGL	2.1	4.6
OpenCL	N/A	3.0
Vulkan	N/A	1.2
CUDA	-	7.5

Synthetic benchmarks

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score.

7900 GTX 0.93

T400 8.65
+830%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

7900 GTX 387
Samples: 90

T400 3625
+837%

Samples: 266

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	0.93	8.65
Recency	9 March 2006	6 May 2021
Maximum RAM amount	512 MB	2 GB
Chip lithography	90 nm	12 nm
Power consumption (TDP)	84 Watt	30 Watt

T400 has a 830% higher aggregate performance score, an age advantage of 15 years, a 300% higher maximum VRAM amount, a 650% more advanced lithography process, and 180% lower power consumption.

The T400 is our recommended choice as it beats the GeForce 7900 GTX in performance tests.

Be aware that GeForce 7900 GTX is a desktop graphics card while T400 is a workstation one.