Zotac GeForce GTX 460 768Mb review

In this review, we will get acquainted with Zotac SYNERGY GeForce GTX 460 768Mb [ZT-40401-10P] graphic card

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Zotac GeForce GTX 460

Introduction

On 12th of July 2010 NVIDIA introduced new graphic cards supporting DirectX 11.GeForce GTX 460 are based on GF104 GPU of Fermi architecture which are produced using 40nm technological process:

GF104

Compared to GF100 new GPU (GF104) has an improved parallel computing technology called Thread Level Parallelism, which theoretically can significantly boost GPU performance. The number of Dispatch Units and LD/ST blocks for single Streaming Multiprocessors (SM) is doubled compared to GF100:

GF104 Streaming Multiprocessors architecture

As a result of such innovations, now SM can process four instructions per clock, while GF100 processes only two operation at the same time.

Performance config of GPU GF100 and GF104
GF100 GF104
Graphics Processing Clusters 4 2
Raster Engine 4 2
Streaming Multiprocessors 16 8
Warp Scheduler 16×2 8×2
Dispatch Unit 16×2 8x2x2
CUDA Cores 16×32 8×48
LD/ST 16×16 8×16
Special Function Units, SFU 16×8 8×8
L1 Cache 16x64kb 8x64kb
Texture Unit 16×4 8×8
PolyMorph Engine 16×1 8×1
Memory Controller 6x64bit 4x64bit
ROPs 6×8 4×8
L2 Cache 12x64kb 8x64kb

High-end Fermi models, based on GPU GF100, were introduced back in spring and now NVIDIA releases two GTX 460 models of middle-end segment. The top GeForce GTX 460 model features 1Gb ofGDDR5 video memory. The other GTX 460 has reduced to 768Mb amount of video memory, therefore, memory bus with has been cut down from 256-bit to 192-bit. Moreover, number of ROPs interrelated with memory interface and Level 2 cache has been brought down by 8.
In this review, we will get acquainted with Zotac SYNERGY GeForce GTX 460 768Mb [ZT-40401-10P] graphic card.

Technical specification

Performance config and clocks of Zotac SYNERGY GeForce GTX 460 768Mb are the same as reference design GeForce GTX 460 768Mb has:

Info on GTX 465

Since GTX 460 768Mb has less memory and as a result crippled performance config, its memory interface bandwidth suffers too. According to official specification Texture Fill Rate of GTX460 is between GTX 480 and GTX 470:

NVIDIA Fermi graphic card specification
GTX 460 768Mb GTX 460 1Mb GTX 465 GTX 470 GTX 480
GPU Codename GF104 GF104 GF100 GF100 GF100
Technological process 40nm 40nm 40nm 40nm 40nm
Die size 332mm2 332mm2 529mm2 529mm2 529mm2
GPU Engine Specs:
CUDA Cores 336 336 352 448 480
Texture blocks 56 56 44 56 60
Raster blocks (ROPs) 24 32 32 40 48
Graphics Clock (MHz) 675 675 607 607 700
Processor Clock (MHz) 1350 1350 1215 1215 1400
Texture Fill Rate (billion/sec) 37.8 37.8 26.7 34 42
Memory specs:
Memory clock (MHz) 1800 1800 1603 1674 1848
SDRAM type 768 MB GDDR5 1024 MB GDDR5 1024 MB GDDR5 1280 MB GDDR5 1536 MB GDDR5
Memory Interface Width 192-bit 256-bit 256-bit 320-bit 384-bit
Memory Bandwidth (GB/sec) 86.4 115.2 102.6 133.9 177.4
Feature Support:
NVIDIA SLI®-ready 2-way 2-way 2-way/3-Way 2-way/3-Way 2-way/3-Way
NVIDIA PureVideo® Technology HD HD HD HD HD
NVIDIA PhysX™-ready yes yes yes yes yes
NVIDIA CUDA™ Technology yes yes yes yes yes
Microsoft DirectX 11 11 11 11 11
Shader model 5.0 5.0 5.0 5.0 5.0
OpenGL 4.0 4.0 4.0 4.0 4.0
Bus Support PCIe 2.0 x16 PCIe 2.0 x16 PCIe 2.0 x16 PCIe 2.0 x16 PCIe 2.0 x16
NVIDIA 3D Vision Ready yes yes yes yes yes
NVIDIA 3D Vision Surround Ready yes yes yes yes yes
Display Support:
Maximum Digital Resolution 2560×1600 2560×1600 2560×1600 2560×1600 2560×1600
Maximum VGA Resolution 2048×1536 2048×1536 2048×1536 2048×1536 2048×1536
Display Connectors 2x Dual Link DVI, Mini HDMI 2x Dual Link DVI, Mini HDMI 2x Dual Link DVI, Mini HDMI 2x Dual Link DVI, Mini HDMI 2x Dual Link DVI, Mini HDMI
Multi Monitor yes yes yes yes yes
HDCP yes yes yes yes yes
HDMI yes yes yes yes yes
Audio Input for HDMI Internal Internal Internal Internal Internal
Graphics Card Dimensions:
Height 4.376 inches (111 mm 4.376 inches (111 mm 4.376 inches (111 mm) 4.376 inches (111 mm) 4.376 inches (111 mm)
Length 8.25 inches (210 mm) 8.25 inches (210 mm) 9.5 inches (241 mm) 9.5 inches (241 mm) 10.5 inches (267 mm)
Width Dual-slot Dual-slot Dual-slot Dual-slot Dual-slot
Thermal and Power Specs:
Maximum GPU Temperature 104°С 104°С 105°С 105°С 105°С
Maximum Graphics Card Power 160 Вт 160 Вт 200 Вт 225 Вт 250 Вт
Minimum Recommended System Power (W) 450 (minimum 24 А on a +12 V rail) 450 (minimum 24 А on a +12 V rail) 550 (minimum 38 А on a +12 V rail) 550 (minimum 38 А on a +12 V rail) 600 (minimum 42 А on a +12 V rail)
Supplementary Power Connectors Two 6-pin Two 6-pin Two 6-pin Two 6-pin 6-pin and 8-pin

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Discussion

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Yarrak Dayı, January 3, 2011 at 1:37 am

Yarrak Dayı,

very good review.Thank you very much.