ATI Radeon HD 4830 vs NVIDIA GeForce 9800 GTX

Graphics Processor

GPU model RV770 G92
GPU variant RV770 LE (215-0669075) G92-420-A2
Architecture TeraScale Tesla
Foundry TSMC TSMC
Manufacturing process 55 nm 65 nm
Number of transistors 956 million 754 million
Die size 256 mm² 324 mm²

Graphics Card

Release date Oct 21st, 2008 Mar 28th, 2008
Generation Radeon R700 GeForce 9
Production End-of-life End-of-life
Launch price 130 USD 299 USD
Interface PCIe 2.0 x16 PCIe 2.0 x16
Reviews 43 in our database 84 in our database
Predecessor Radeon R600 GeForce 8
Successor Evergreen GeForce 200

Clocks

GPU clock 575 MHz 675 MHz
Memory clock 900 MHz 1800 Mbps effective 1100 MHz 2.2 Gbps effective
Shader clock 1688 MHz

Memory Configuration

Memory size 512 MB 512 MB
Memory type GDDR3 GDDR3
Memory bus width 256 bit 256 bit
Bandwidth 57.60 GB/s 70.40 GB/s

Render Configuration

Shading units 640 128
TMUs 32 64
ROPs 16 16
Compute units 8
Cache L1 16 KB (per CU)
Cache L2 256 KB 64 KB
SM count 16

Performance

Pixel rate 9.200 GPixel/s 10.80 GPixel/s
Texture rate 18.40 GTexel/s 43.20 GTexel/s
FP32 (float) performance 736.0 GFLOPS 432.1 GFLOPS
FP64 (double) performance 147.2 GFLOPS (1:5)

Dimensions & Outputs

Slot width Single-slot Dual-slot
Length 246 mm 9.7 inches 267 mm 10.5 inches
Width 111 mm 4.4 inches 111 mm 4.4 inches
Height 20 mm 0.8 inches 38 mm 1.5 inches
TDP 95 W 140 W
Suggested PSU 250 W 300 W
Outputs 2x DVI1x S-Video 2x DVI1x S-Video
Power connectors 1x 6-pin 2x 6-pin
Board number B501-31 P392

API Support & Features

DirectX 10.1 (10_1) 11.1 (10_0)
OpenGL 3.3 3.3
OpenCL 1.1 1.1
Vulkan
Shader model 4.1 4.0
CUDA 1.1

Other Features

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