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ATI Radeon HD 4890

Graphics Processor
RV790
Cores
800
TMUs
40
ROPs
16
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
256 bit
GPU Chip
GPU
PCB Front
PCB Front
PCB Back
PCB Back
The Radeon HD 4890 was a performance-segment graphics card by ATI, launched in April 2009. Built on the 55 nm process, and based on the RV790 graphics processor, in its RV790 XT variant, the card supports DirectX 10.1. Since Radeon HD 4890 does not support DirectX 11 or DirectX 12, it might not be able to run all the latest games. The RV790 graphics processor is an average sized chip with a die area of 282 mm² and 959 million transistors. It features 800 shading units, 40 texture mapping units, and 16 ROPs. ATI has paired 1,024 MB GDDR5 memory with the Radeon HD 4890, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 850 MHz, memory is running at 975 MHz (3.9 Gbps effective).
Being a dual-slot card, the ATI Radeon HD 4890 draws power from 2x 6-pin power connectors, with power draw rated at 190 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 4890 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card's dimensions are 241 mm x 111 mm x 40 mm, and it features a dual-slot cooling solution. Its price at launch was 249 US Dollars.

Graphics Processor

GPU Name
RV790
GPU Variant
RV790 XT
(215-0758016)
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
959 million
Die Size
282 mm²

Graphics Card

Release Date
Apr 2nd, 2009
Generation
Radeon R700
(HD 4800)
Production
End-of-life
Launch Price
249 USD
Bus Interface
PCIe 2.0 x16
Reviews
114 in our database

Relative Performance

9%
GeForce 210
11%
GeForce 9400 GT
13%
Radeon HD 4550
17%
Radeon HD 5450
20%
Radeon HD 6450
21%
GeForce GT 520
26%
GeForce GT 220
35%
GeForce GT 430
35%
Radeon HD 5570
38%
Radeon HD 4670
40%
GeForce GT 440
41%
GeForce GT 240
47%
GeForce 9600 GT
50%
Radeon HD 5670
54%
GeForce GT 640
55%
GeForce 9800 GT
58%
Radeon HD 6670
60%
Radeon HD 4830
64%
Radeon HD 4770
67%
Radeon HD 4850
68%
GeForce GTS 250
71%
GeForce GTS 450
73%
Radeon HD 5750
83%
Radeon HD 7750
84%
Radeon HD 5770
85%
GeForce GTX 260
87%
Radeon HD 4870
87%
Radeon Vega 8
88%
GeForce GTX 550 Ti
88%
GeForce GTX 650
94%
Radeon HD 5830
98%
Radeon HD 6790
100%
Radeon HD 4890
104%
GeForce GTX 460
105%
Radeon RX Vega 11
106%
GeForce GT 1030
107%
GeForce GTX 275
107%
Radeon HD 7770 GHz Edition
107%
GeForce GTX 280
109%
GeForce GTX 465
114%
Radeon HD 6850
117%
GeForce GTX 285
125%
Radeon HD 5850
127%
GeForce GTX 650 Ti
127%
Radeon HD 7790
133%
Radeon RX 550
133%
GeForce GTX 470
138%
Radeon HD 6870
147%
Radeon HD 5870
152%
GeForce GTX 560 Ti
153%
Radeon HD 4870 X2
155%
GeForce GTX 750 Ti
156%
Radeon HD 6950
162%
GeForce GTX 295
163%
GeForce GTX 650 Ti Boost
165%
Radeon HD 7850
168%
GeForce GTX 480
175%
Radeon HD 6970
179%
Radeon R7 265
182%
Radeon RX 460
182%
Radeon R7 370
182%
GeForce GTX 660
183%
GeForce GTX 570
186%
Radeon RX 560
197%
GeForce GTX 950
199%
Radeon HD 7870 GHz Edition
204%
Radeon R9 270X
206%
GeForce GTX 660 Ti
207%
GeForce GTX 580
209%
GeForce GTX 1050
209%
Radeon HD 7950
214%
Radeon HD 5970
220%
GeForce GTX 760
236%
GeForce GTX 670
243%
GeForce GTX 960
249%
Radeon R9 380
250%
Radeon R9 285
253%
Radeon HD 7970
255%
GeForce GTX 680
261%
GeForce GTX 1050 Ti
268%
GeForce GTX 770
274%
Radeon HD 6990
281%
Radeon R9 280X
285%
GeForce GTX 590
285%
Radeon HD 7970 GHz Edition
316%
GeForce GTX 780
327%
GeForce GTX 1650
347%
Radeon RX 470
352%
Radeon R9 290
371%
Radeon RX 570
376%
Radeon R9 390
378%
Radeon R9 290X
383%
GeForce GTX 970
388%
GeForce GTX TITAN
393%
GeForce GTX 780 Ti
399%
Radeon R9 390X
401%
Radeon HD 7990
402%
Radeon RX 480
406%
GeForce GTX 690
417%
GeForce GTX 1060 6 GB
423%
Radeon RX 5500 OEM
428%
Radeon RX 580
431%
Radeon RX 5500 XT
437%
GeForce GTX 980
440%
GeForce GTX 1650 SUPER
442%
Radeon R9 FURY
462%
Radeon RX 590
486%
Radeon R9 295X2
489%
GeForce GTX 1660
495%
Radeon R9 FURY X
503%
GeForce GTX 980 Ti
516%
GeForce GTX TITAN X
549%
GeForce GTX 1660 SUPER
561%
GeForce GTX 1660 Ti
561%
GeForce GTX 1070
598%
Radeon RX Vega 56
634%
GeForce GTX 1070 Ti
652%
Radeon RX Vega 64
661%
GeForce RTX 2060
661%
GeForce GTX 1080
688%
Radeon RX 5700
743%
GeForce RTX 2060 SUPER
770%
GeForce RTX 2070
788%
Radeon RX 5700 XT
797%
Radeon VII
818%
TITAN X Pascal
842%
GeForce GTX 1080 Ti
851%
GeForce RTX 2070 SUPER
906%
GeForce RTX 2080
960%
GeForce RTX 2080 SUPER
1060%
GeForce RTX 2080 Ti
1399%
GeForce RTX 3080
1539%
GeForce RTX 3090
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.

Clock Speeds

GPU Clock
850 MHz
Memory Clock
975 MHz
3.9 Gbps effective

Memory

Memory Size
1024 MB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
124.8 GB/s

Render Config

Shading Units
800
TMUs
40
ROPs
16
Compute Units
10
L1 Cache
16 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
13.60 GPixel/s
Texture Rate
34.00 GTexel/s
FP32 (float) performance
1,360 GFLOPS
FP64 (double) performance
272.0 GFLOPS (1:5)

Board Design

Slot Width
Dual-slot
Length
241 mm
9.5 inches
Width
111 mm
4.4 inches
Height
40 mm
1.6 inches
TDP
190 W
Suggested PSU
450 W
Outputs
2x DVI
1x S-Video
Power Connectors
2x 6-pin
Board Number
B790-31

Graphics Features

DirectX
10.1 (10_1)
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
Shader Model
4.1

RV790 GPU Notes

Codename: Wekiva Plus (Spartan)
Graphics/Compute: GFX3
Display Core Engine: 3.1
Unified Video Decoder: 2.0

Retail boards based on this design (18)

Name GPU Clock Memory Clock Other Changes
ASUS HD 4890 TOP 900 MHz 1000 MHz
Diamond HD 4890 XOC 925 MHz 1050 MHz
GIGABYTE HD 4890 850 MHz 975 MHz
HIS HD 4890 Fan Turbo 900 MHz 1000 MHz 246 mm/9.7 inches
HIS HD 4890 Fan Turbo+ 965 MHz 1050 MHz 246 mm/9.7 inches
MSI HD 4890 Cyclone SOC 1000 MHz 1000 MHz 1x DVI 1x HDMI 1x VGA
PowerColor HD 4890 LCS 900 MHz 1000 MHz
PowerColor HD 4890 PCS+ 950 MHz 975 MHz
Sapphire HD 4890 850 MHz 975 MHz
Sapphire HD 4890 Atomic 1000 MHz 1050 MHz
Sapphire HD 4890 New Edition 850 MHz 975 MHz 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 4890 Toxic 960 MHz 1050 MHz
Sapphire HD 4890 Vapor-X OC 870 MHz 1050 MHz 1x DVI 1x HDMI 1x DisplayPort 1x VGA
Sapphire HD 4890 Vapor-X OC 2 GB 870 MHz 1050 MHz 2 GB, 1x DVI 1x HDMI 1x DisplayPort 1x VGA
VisionTek HD 4890 OC Edition 950 MHz 1050 MHz
XFX HD 4890 850 MHz 975 MHz
XFX HD 4890 Black Edition 1000 MHz 1000 MHz
XFX HD 4890 XXX Edition 1000 MHz 1000 MHz